PDS_VERSION_ID = PDS3 RECORD_TYPE = STREAM OBJECT = TEXT NOTE = "Comments on Mars Odyssey Thermal Emission Imaging System (THEMIS) online data release (ERRATA.TXT)" PUBLICATION_DATE = 2014-07-15 END_OBJECT = TEXT END COMMENTS ON ODY THEMIS ONLINE DATA RELEASE This document contains comments and errata concerning the online data release of the Mars Odyssey Thermal Emission Imaging System (THEMIS). The THEMIS team reserves the right to update online standard data products between official release dates, and will post such changes to this text. Older versions of standard data products or documentation will not be maintained and the update will replace the previous version. Section-A lists standard data product updates by an ERRATA_ID composed of the DATASET_ID abbreviation, the RELEASE_ID, and the updated PRODUCT_VERSION_ID. Unless otherwise noted, updates to standard data products will also be reflected in the appropriate release catalogs (CATALOG/ODTxxREL.CAT) and the appropriate indexes (INDEX/INDEX_ODTxx.TAB and INDEX/THMIDX_xx.TAB). Section-B lists miscellaneous updates to the remaining contents of the online volume. These errata are listed by date. In addition to the change requiring the errata, individual SPECTRAL_QUBEs will have modified values for the keywords PRODUCT_CREATION_DATE and PRODUCT_VERSION_ID, and an ERRATA history object will be added documenting the changes to the data. Individual IMAGE objects will have the same modified keyword values. -------------------------------------------------------------------------- Section-A IR-BTR images corrected for source IR-RDR processing error ERRATA_ID = ODTIB-0001-1.1 Original CAL_IR_IMAGE processing of source IR-RDR products was incomplete causing incorrect padding between header objects and CORE data. Calibration of the IR-RDRs were rerun and validated. IR-BTR images were recreated from the revised source files and include a PRODUCT_CREATION_TIME with a value on 2002-10-03. NOTE: errata routines were not established at the time of this update Associated ERRATA_ID: none (corresponding IR-RDR files were not a part of RELEASE_ID = 0001) Header updates to all EDR QUBEs ERRATA_ID = ODTIE-0001-1.1 and ODTVE-0001-1.1 SFDU2CUBE version 1.56 update includes the following modifications to the headers of all THEMIS EDR QUBEs: - keyword UNCORRECTED_START_TIME changed to UNCORRECTED_SCLK_START_COUNT - double quotes around the values of PRODUCT_VERSION_ID - double quotes around the values of SPACECRAFT_CLOCK_START_COUNT, and SPACECRAFT_CLOCK_STOP_COUNT, UNCORRECTED_SCLK_START_COUNT. In VIS-EDR headers, the misspelling of FOCAL_PLANE_TEMPERATURE was corrected. This SFDU2CUBE version also includes improved sfdu stream processing of corrupted packets. The keyword RELEASE_ID was added to the PDS label attached to all THEMIS EDR QUBE objects. This keyword identifies the original public release of the object. Associated ERRATA_ID: ODTIB-0001-1.2, ODTVB-0001-1.1 IR-BTR and VIS-ABR headers updated with new keywords and modified values ERRATA_ID = ODTIB-0001-1.2 and ODTVB-0001-1.1 The following modifications were made to the headers of all THEMIS Brightness Record (BTR and ABR) products: - double quotes around the values of PRODUCT_VERSION_ID - added keyword SOURCE_PRODUCT_VERSION_ID - added keyword RELEASE_ID. Associated ERRATA_ID: ODTIE-0001-1.1; ODTVE-0001-1.1 VIS-ABR geometry parameters calculated incorrectly ERRATA_ID = ODTVB-0001-1.2 A bug in the THEMIS geometry projection software resulted in the miscalculation of all of the geometric parameters provided in the header of the VIS-ABR images. The geometric parameters have been recalculated and propagated into the VIS-ABR headers. Associated ERRATA_ID: none Band information bug in IR-BTR processing script corrected ERRATA_ID = ODTIB-0001-1.3 and ODTIB-0002-1.1 A bug in the Brightness Temperature Record (BTR) processing script was identified and corrected. The bug used erroneous band information to generate the BTR files, with the most obvious result being incorrect maximum brightness temperature calculations for night images. All IR-BTR and corresponding browse images were regenerated. Associated ERRATA_ID: none IR-RDR data format change to 16-bit integers ERRATA_ID = ODTIR-0002-1.1 The file format of the IR-RDR QUBEs has been modified. The data values are stored as floating point values scaled into 16-bit integers. Scaling is done per band, with the appropriate offset and scaling factor values stored in the BAND_BIN group keywords: BAND_BIN_BASE and BAND_BIN_MULTIPLIER. Similarly, value changes to several other Core Description keywords reflect the new file format. Also, an error of omission was corrected by adding the following suffix description keywords: - SAMPLE_SUFFIX_VALID_MINIMUM - LINE_SUFFIX_VALID_MINIMUM Associated ERRATA_ID: none Calibration of extra long IR-EDR images ERRATA_ID = ODTIR-0002-1.2 The standard IR-RDR processing routine fails on images with greater than 107700 FILE_RECORDS. For these images the routine was modified to first break the source IR-EDR into five 2-band images, apply the current calibration routine, then reassemble the pieces into a single IR-RDR QUBE. A comment indicating the special processing is also available in the USER_NOTE keyword of the CAL_IR_IMAGE history object. IR-RDR images associated with this errata were not available before this time; any future reprocessing will also apply this modified routine. Associated ERRATA_ID: ODTIB-0001-1.4 New BTRs for extra long source IR-RDR images ERRATA_ID = ODTIB-0001-1.4 The IR-BTR images associated with this errata were not available before this time due to failure of the standard IR-RDR processing routine on images with greater than 107700 FILE_RECORDS. A modification was made to the processing routine to allow calibration to complete, creating the source file required for the IR-BTR. Associated ERRATA_ID: ODTIR-0002-1.2 Update to files used in VIS calibration ERRATA_ID = ODTVR-0002-1.1 The STRAY_LIGHT_FILE calibration file, used in CAL_VIS_IMAGE version 1.0, was updated and all THEMIS VIS-RDR QUBEs were regenerated. See the History object for the identity of the new calibration file. Also, an error of omission was corrected by adding the following keywords to the CAL_VIS_IMAGE History object: - GEOMETRY - MEAN_MARS_FILE - MEAN_MARS_FILE_DATE Neither of the above errata affected the calibration algorithm, so the VERSION_ID in the CAL_VIS_IMAGE history object was not incremented. Associated ERRATA_ID: ODTVB-0001-1.3 and ODTVB-0002-1.1 VIS-ABR file dimension modification and data updated ERRATA_ID = ODTVB-0001-1.3 and ODTVB-0002-1.1 In the previous version of all VIS-ABRs, the value for RECORD_BYTES was inconsistent with the physical width (LINE_SAMPLES) of the image; when VIS-ABR products were recreated, adjustments were made to the values of RECORD_BYTES, FILE_RECORDS, LABEL_RECORDS, and the IMAGE pointer. It should be noted that the original values were internally consistent with the logical dimensions of the file and should not have caused problems when the file was read into most available software packages. A modification to the CAL_VIS_IMAGE calibration routine required the recreation of the source VIS-RDRs; all VIS-ABR images were recreated from the new source files. Associated ERRATA_ID: ODTVR-0002-1.1 Correction of error propagated during IR-RDR data format change ERRATA_ID = ODTIR-0002-1.3 and ODTIR-0003-1.1 A software bug applied incorrect scaling to the data during the file format change described in errata_id ODTIR-0002-1.1. All infrared RDR-QUBEs, derived brightness images (IR-BTR), and the associated browse images have been regenerated. Associated ERRATA_ID: ODTIB-0001-1.5; ODTIB-0002-1.2; ODTIB-0003-1.1 IR-BTR images corrected for source IR-RDR data processing error ERRATA_ID = ODTIB-0001-1.5, ODTIB-0002-1.2, and ODTIB-0003-1.1 A software bug applied incorrect scaling to the data during the file format change described in errata_id ODTIR-0002-1.1. All IR-RDRs were regenerated and validated; IR-BTR images were recreated from the revised source files. Associated ERRATA_ID: ODTIR-0002-1.3; ODTIR-0003-1.1 Header updates to all EDR QUBEs ERRATA_ID = ODTIE-0001-1.2, ODTIE-0002-1.1, ODTIE-0003-1.1, ODTVE-0001-1.2, ODTVE-0002-1.1, ODTVE-0003-1.1 The headers of all THEMIS EDR QUBEs have been updated with the following modifications to make them compatible with SFDU2CUBE version 1.59: - added keyword IMAGE_DURATION - corrected bug in calculation of VIS keywords STOP_TIME, STOP_TIME_ET, and SPACECRAFT_SCLK_STOP_COUNT See DOCUMENT/SDPSIS.PDF for detailed keyword descriptions. The new time values recalculated for this errata may differ from the original values by a few milliseconds, due to newly available, higher precision SPICE kernels or to a minor error in the previous version of SFDU2CUBE. Associated ERRATA_ID: ODTIR-0002-1.4; ODTIR-0003-1.2; ODTVR-0002-1.2; ODTVR-0003-1.1; ODTIB-0001-1.6; ODTIB-0002-1.3; ODTIB-0003-1.2; ODTVB-0001-1.4; ODTVB-0002-1.2; ODTVB-0003-1.1 Header updates to all IR-RDR QUBEs ERRATA_ID = ODTIR-0002-1.4, ODTIR-0003-1.2 The headers of all THEMIS RDR QUBEs have been updated with the following modifications to make them compatible with SFDU2CUBE version 1.59: - added keyword IMAGE_DURATION - corrected bug in calculation of VIS keywords STOP_TIME, STOP_TIME_ET, and SPACECRAFT_SCLK_STOP_COUNT See DOCUMENT/SDPSIS.PDF for detailed keyword descriptions. The new time values recalculated for this errata may differ from the original values by a few milliseconds, due to newly available, higher precision SPICE kernels or to a minor error in the previous version of SFDU2CUBE. Associated ERRATA_ID: ODTIE-0001-1.2; ODTIE-0002-1.1; ODTIE-0003-1.1; ODTVE-0001-1.2; ODTVE-0002-1.1; ODTVE-0003-1.1; ODTVR-0002-1.2; ODTVR-0003-1.1; ODTIB-0001-1.6; ODTIB-0002-1.3; ODTIB-0003-1.2; ODTVB-0001-1.4; ODTVB-0002-1.2; ODTVB-0003-1.1 Header updates to all IR-BTR images ERRATA_ID = ODTIB-0001-1.6, ODTIB-0002-1.3, ODTIB-0003-1.2 All THEMIS BTR IMGs have been reprocessed in order to update the headers with the following modifications: - added keyword UNCORRECTED_SCLK_START_COUNT - added keyword IMAGE_DURATION - corrected bug in calculation of VIS keywords STOP_TIME, STOP_TIME_ET, and SPACECRAFT_SCLK_STOP_COUNT See DOCUMENT/SDPSIS.PDF for detailed keyword descriptions. The new time values recalculated for this errata may differ from the original values by a few milliseconds, due to newly available, higher precision SPICE kernels or to a minor error in the previous version of SFDU2CUBE. Associated ERRATA_ID: ODTIE-0001-1.2; ODTIE-0002-1.1; ODTIE-0003-1.1; ODTVE-0001-1.2; ODTVE-0002-1.1; ODTVE-0003-1.1; ODTIR-0002-1.4; ODTIR-0003-1.2; ODTVR-0002-1.2; ODTVR-0003-1.1; ODTVB-0001-1.4; ODTVB-0002-1.2; ODTVB-0003-1.1 Calibration algorithm updated to Version 2.0 for all VIS-RDR QUBEs ERRATA_ID = ODTVR-0002-1.2, ODTVR-0003-1.1 All THEMIS VIS-RDR QUBEs were reprocessed to include several significant improvements made to the CAL_VIS_IMAGE algorithm; a description of the version 2.0 algorithm is available in DOCUMENT/PROCESS.PDF. Entries in the CAL_VIS_IMAGE History object were modified as necessary to reflect the required inputs to the new calibration algorithm. The new VIS-RDR QUBEs were generated from VIS-EDR QUBEs, SFDU2CUBE version 1.56. VIS-EDR QUBEs from orbits 3500-4599 released with this delivery are SFDU2CUBE version 1.59; there is no data difference between the two SFDU2CUBE versions, only header modifications. Also, the headers of all THEMIS RDR QUBEs were updated with the following modifications to make them compatible with SFDU2CUBE version 1.59: - added keyword IMAGE_DURATION - corrected bug in calculation of VIS keywords STOP_TIME, STOP_TIME_ET, and SPACECRAFT_SCLK_STOP_COUNT See DOCUMENT/SDPSIS.PDF for detailed keyword descriptions. The new time values recalculated for this errata may differ from the original values by a few milliseconds, due to newly available, higher precision SPICE kernels or to a minor error in the previous version of SFDU2CUBE. Associated ERRATA_ID: ODTIE-0001-1.2; ODTIE-0002-1.1; ODTIE-0003-1.1; ODTVE-0001-1.2; ODTVE-0002-1.1; ODTVE-0003-1.1; ODTIR-0002-1.4; ODTIR-0003-1.2; ODTIB-0001-1.6; ODTIB-0002-1.3; ODTIB-0003-1.2; ODTVB-0001-1.4; ODTVB-0002-1.2; ODTVB-0003-1.1 Header and data updates to VIS-ABR images ERRATA_ID = ODTVB-0001-1.4, ODTVB-0002-1.2, ODTVB-0003-1.1 Original CAL_VIS_IMAGE processing of source VIS-RDR products was updated to version 2.0; VIS-BTR images were recreated from the revised source files. Also, all THEMIS ABR IMGs headers have been updated with the following modifications: - added keyword UNCORRECTED_SCLK_START_COUNT - added keyword IMAGE_DURATION - corrected bug in calculation of VIS keywords STOP_TIME, STOP_TIME_ET, and SPACECRAFT_SCLK_STOP_COUNT See DOCUMENT/SDPSIS.PDF for detailed keyword descriptions. The new time values recalculated for this errata may differ from the original values by a few milliseconds, due to newly available, higher precision SPICE kernels or to a minor error in the previous version of SFDU2CUBE. Associated ERRATA_ID: ODTIE-0001-1.2; ODTIE-0002-1.1; ODTIE-0003-1.1; ODTVE-0001-1.2; ODTVE-0002-1.1; ODTVE-0003-1.1; ODTIR-0002-1.4; ODTIR-0003-1.2; ODTVR-0002-1.2; ODTVR-0003-1.1; ODTIB-0001-1.6; ODTIB-0002-1.3; ODTIB-0003-1.2 Header and data updates to selected IR-BTR images ERRATA_ID = ODTIB-0001-1.7, ODTIB-0002-1.4, ODTIB-0003-1.3, ODTIB-0004-1.1 CAL_IR_IMAGE processing of selected source IR-RDR images were regenerated with revised geometry parameters; the corresponding IR-BTR images were recreated from the new source files. New IR-BTR images will contain an updated value in the header keyword SOURCE_PRODUCT_VERSION_ID. Also, the keyword GEOMETRY_SOURCE_DESC has been added to all THEMIS BTR IMGs headers; see the DOCUMENT/SDPSIS.pdf for the definition and values of this keyword. Associated ERRATA_ID: ODTIR-0002-1.5; ODTIR-0003-1.3; ODTIR-0004-1.1 Geometry changed within calibration for selected IR-RDR QUBEs ERRATA_ID = ODTIR-0002-1.5, ODTIR-0003-1.3, ODTIR-0004-1.1 CAL_IR_IMAGE processing of selected IR-RDR image was updated with revised geometry parameters as inputs to the STRAYLIGHT algorithm; the geometry type is recorded in the CAL_IR_IMAGE HISTORY keyword STRAYLIGHT_GEOMETRY. Associated ERRATA_ID: ODTIB-0001-1.7; ODTIB-0002-1.4; ODTIB-0003-1.3; ODTIB-0004-1.1 Header and data updates to all VIS-ABR images ERRATA_ID = ODTVB-0001-1.5, ODTVB-0002-1.3, ODTVB-0003-1.2, ODTVB-0004-1.1 CAL_VIS_IMAGE processing of source VIS-RDR products was updated and all VIS-BTR images were recreated from the revised files. Also, the keyword GEOMETRY_SOURCE_DESC has been added to all THEMIS ABR IMGs headers; see the DOCUMENT/SDPSIS.pdf for the definition and values of this keyword. Associated ERRATA_ID: ODTVR-0002-1.3; ODTVR-0003-1.2; ODTVR-0004-1.1 Update to files used in VIS-RDR calibration ERRATA_ID = ODTVR-0002-1.3, ODTVR-0003-1.2, ODTVR-0004-1.1 Several calibration files, used in CAL_VIS_IMAGE version 2.0, were updated and all THEMIS VIS-RDR QUBEs were regenerated. Check the History object for the identity of the new calibration files. The calibration algorithm was not changed, so the VERSION_ID for CAL_VIS_IMAGE was not incremented. Associated ERRATA_ID: ODTVB-0001-1.5; ODTVB-0002-1.3; ODTVB-0003-1.2; ODTVB-0004-1.1 IR-EDRs recovered from SFDU ERRATA_ID = ODTIE-0003-1.2 The data packets for this image were recovered from the SFDU data after the original release of these orbits. Calibration was completed and higher level products were generated as appropriate." Associated ERRATA_ID: ODTIR-0003-1.4 Calibration completed for several IR-RDRs ERRATA_ID = ODTIR-0003-1.4, ODTIR-0004-1.2 The calibration image to complete the processing of this image was identified after the initial release of the raw data. Calibration has since been successfully completed. Associated ERRATA_ID: none Calibration algorithm updated to Version 2.2 for all VIS-RDR QUBEs ERRATA_ID = ODTVR-0002-1.4, ODTVR-0003-1.3, ODTVR-0004-1.2, ODTVR-0005-1.1, ODTVR-0006-1.1 All THEMIS VIS-RDR QUBEs were reprocessed with a modified CAL_VIS_IMAGE algorithm, version 2.20. The modifications include: - updated calibration files and coefficients; see HISTORY object entries for filenames - refined calculation of shutter smear; see DOCUMENT/PROCESS.PDF section 3.3.4. Associated ERRATA_ID: none VIS-ABRs updated due to source VIS-RDR processing update ERRATA_ID = ODTVB-0001-1.6, ODTVB-0002-1.4, ODTVB-0003-1.3, ODTVB-0004-1.2, ODTVB-0005-1.1, ODTVB-0006-1.1 CAL_VIS_IMAGE processing of source VIS-RDR products was updated and all VIS-BTR images were recreated from the revised files. Also, the geometry parameters listed in the image header correspond with the band listed in the BAND_NUMBER keyword. In previous versions, this was not necessarily true. Associated ERRATA_ID: ODTVR-0002-1.4; ODTVR-0003-1.3; ODTVR-0004-1.2; ODTVR-0005-1.1; ODTVR-0006-1.1 Calibration algorithm updated to Version 2.3 for all VIS-RDR QUBEs ERRATA_ID = ODTVR-0002-1.5, ODTVR-0003-1.4, ODTVR-0004-1.3, ODTVR-0005-1.2, ODTVR-0006-1.2, ODTVR-0007-1.1 All THEMIS VIS-RDR QUBEs were reprocessed with a modified CAL_VIS_IMAGE algorithm, version 2.30. The modifications include updated calibration files and coefficients; see HISTORY object entries for filenames Associated ERRATA_ID: none VIS-ABRs updated due to source VIS-RDR processing updated ERRATA_ID = ODTVB-0001-1.7, ODTVB-0002-1.5, ODTVB-0003-1.4, ODTVB-0004-1.3, ODTVB-0005-1.2, ODTVB-0006-1.2, ODTVB-0007-1.1 CAL_VIS_IMAGE processing of source VIS-RDR products was updated and all VIS-BTR images were recreated from the revised files. Associated ERRATA_ID: ODTVR-0002-1.5, ODTVR-0003-1.4, ODTVR-0004-1.3, ODTVR-0005-1.2, ODTVR-0006-1.2, ODTVR-0007-1.1 Header updates to all EDR QUBEs using SFDU2CUBE software v1.63 ERRATA_ID = ODTIE-0001-1.3, ODTIE-0002-1.2, ODTIE-0003-1.3, ODTIE-0004-1.1, ODTIE-0005-1.1, ODTIE-0006-1.1, ODTIE-0007-1.1, ODTIE-0008-1.1, ODTIE-0009-1.1, ODTVE-0001-1.3, ODTVE-0002-1.2, ODTVE-0003-1.2, ODTVE-0004-1.1, ODTVE-0005-1.1, ODTVE-0006-1.1, ODTVE-0007-1.1, ODTVE-0008-1.1, ODTVE-0009-1.1 SFDU2CUBE version 1.63 update modifies the header of a THEMIS IR-EDR QUBE by filling in an empty description with the phrase: No Description Given. Other inaccurate descriptions have also been corrected. Associated ERRATA_ID: ODTIR-0002-1.6, ODTIR-0003-1.5, ODTIR-0004-1.3, ODTIR-0005-1.1, ODTIR-0006-1.1, ODTIR-0007-1.1, ODTIR-0008-1.1, ODTIR-0009-1.1, ODTIB-0001-1.8, ODTIB-0002-1.5, ODTIB-0003-1.4, ODTIB-0004-1.2, ODTIB-0005-1.1, ODTIB-0006-1.1, ODTIB-0007-1.1, ODTIB-0008-1.1, ODTIB-0009-1.1, ODTVR-0002-1.6, ODTVR-0003-1.5, ODTVR-0004-1.4, ODTVR-0005-1.3, ODTVR-0006-1.3, ODTVR-0007-1.2, ODTVR-0008-1.1, ODTVR-0009-1.1, ODTVB-0001-1.8, ODTVB-0002-1.6, ODTVB-0003-1.5, ODTVB-0004-1.4, ODTVB-0005-1.3, ODTVB-0006-1.3, ODTVB-0007-1.2, ODTVB-0008-1.1, ODTVB-0009-1.1 Selected EDRs recovered from SFDU ERRATA_ID = ODTIE-0007-1.2, ODTVE-0006-1.2, ODTVE-0007-1.2, ODTVE-0008-1.2 The data packets for this image were recovered from the SFDU data after the original release of these orbits. Calibration was completed and higher level products were generated as appropriate. Associated ERRATA_ID: IR-RDR QUBEs updated with improved STRAYLIGHT algorithm in CAL_IR_IMAGE v4.8; Source IR-EDR header updated and propagated to IR-RDR ERRATA_ID = ODTIR-0002-1.6, ODTIR-0003-1.5, ODTIR-0004-1.3, ODTIR-0005-1.1, ODTIR-0006-1.1, ODTIR-0007-1.1, ODTIR-0008-1.1, ODTIR-0009-1.1 All THEMIS IR-RDR QUBEs were reprocessed with CAL_IR_IMAGE version 4.8 which includes significant improvements to the STRAYLIGHT algorithm. A description of CAL_IR_IMAGE is available in DOCUMENT/PROCESS.PDF. Also, any header updates to the source IR-EDRs have been propagated to the IR-RDRs. Associated ERRATA_ID: ODTIE-0001-1.3, ODTIE-0002-1.2, ODTIE-0003-1.3, ODTIE-0004-1.1, ODTIE-0005-1.1, ODTIE-0006-1.1, ODTIE-0007-1.1, ODTIE-0008-1.1, ODTIE-0009-1.1, ODTIB-0001-1.8, ODTIB-0002-1.5, ODTIB-0003-1.4, ODTIB-0004-1.2, ODTIB-0005-1.1, ODTIB-0006-1.1, ODTIB-0007-1.1, ODTIB-0008-1.1, ODTIB-0009-1.1 VIS-RDRs headers updated due to reflect VIS-EDR header updates ERRATA_ID = ODTVR-0002-1.6, ODTVR-0003-1.5, ODTVR-0004-1.4, ODTVR-0005-1.3, ODTVR-0006-1.3, ODTVR-0007-1.2, ODTVR-0008-1.1, ODTVR-0009-1.1 The header of the source VIS-EDR product was updated and the changes were propagated to this VIS-RDR. Associated ERRATA_ID: ODTVE-0001-1.3, ODTVE-0002-1.2, ODTVE-0003-1.2, ODTVE-0004-1.1, ODTVE-0005-1.1, ODTVE-0006-1.1, ODTVE-0007-1.1, ODTVE-0008-1.1, ODTVE-0009-1.1, ODTVB-0001-1.8, ODTVB-0002-1.6, ODTVB-0003-1.5, ODTVB-0004-1.4, ODTVB-0005-1.3, ODTVB-0006-1.3, ODTVB-0007-1.2, ODTVB-0008-1.1, ODTVB-0009-1.1 Selected higher level data products completed late ERRATA_ID = ODTIR-0007-1.2, ODTVR-0007-1.3, ODTIB-0007-1.2, ODTVB-0007-1.3 The data packets for this image were recovered from the SFDU data after the original release of these orbits. Calibration was completed and higher level products were generated as appropriate. Associated ERRATA_ID: ODTIE-0007-1.2, ODTVE-0007-1.2 IR-BTRs updated due to source IR-RDR update ERRATA_ID = ODTIB-0001-1.8, ODTIB-0002-1.5, ODTIB-0003-1.4, ODTIB-0004-1.2, ODTIB-0005-1.1, ODTIB-0006-1.1, ODTIB-0007-1.1, ODTIB-0008-1.1, ODTIB-0009-1.1 CAL_IR_IMAGE processing of source IR-RDR products was updated and all IR-BTR images were recreated from the revised files. Any header updates were also propagated to the IR-BTR. Associated ERRATA_ID: ODTIE-0001-1.3, ODTIE-0002-1.2, ODTIE-0003-1.3, ODTIE-0004-1.1, ODTIE-0005-1.1, ODTIE-0006-1.1, ODTIE-0007-1.1, ODTIE-0008-1.1, ODTIE-0009-1.1, ODTIR-0002-1.6, ODTIR-0003-1.5, ODTIR-0004-1.3, ODTIR-0005-1.1, ODTIR-0006-1.1, ODTIR-0007-1.1, ODTIR-0008-1.1, ODTIR-0009-1 VIS-ABR headers updated to reflect source VIS-RDR updates ERRATA_ID = ODTVB-0001-1.8, ODTVB-0002-1.6, ODTVB-0003-1.5, ODTVB-0004-1.4, ODTVB-0005-1.3, ODTVB-0006-1.3, ODTVB-0007-1.2, ODTVB-0008-1.1, ODTVB-0009-1.1 The header of the source VIS-RDR product was updated and the changes were propagated to this VIS-ABR. Associated ERRATA_ID: ODTVE-0001-1.3, ODTVE-0002-1.2, ODTVE-0003-1.2, ODTVE-0004-1.1, ODTVE-0005-1.1, ODTVE-0006-1.1, ODTVE-0007-1.1, ODTVE-0008-1.1, ODTVE-0009-1.1, ODTVR-0002-1.6, ODTVR-0003-1.5, ODTVR-0004-1.4, ODTVR-0005-1.3, ODTVR-0006-1.3, ODTVR-0007-1.2, ODTVR-0008-1.1, ODTVR-0009-1 VIS-ABRs updated due to source VIS-RDR calibration update ERRATA_ID = ODTVB-0001-1.9, ODTVB-0002-1.7, ODTVB-0003-1.6, ODTVB-0004-1.5, ODTVB-0005-1.4, ODTVB-0006-1.4, ODTVB-0007-1.4, ODTVB-0008-1.2, ODTVB-0009-1.2, ODTVB-0010-1.1, ODTVB-0011-1.1, CAL_VIS_IMAGE processing of source VIS-RDR products was updated and all VIS-BTR images were recreated from the revised files. Associated ERRATA_ID: ODTVR-0002-1.7, ODTVR-0003-1.6, ODTVR-0004-1.5, ODTVR-0005-1.4, ODTVR-0006-1.4, ODTVR-0007-1.4, ODTVR-0008-1.2, ODTVR-0009-1.2, ODTVR-0010-1.1, ODTVR-0011-1.1 V10015011EDR recovered from corrected SFDU ERRATA_ID = ODTVE-0009-1.2 The correct data packets for this image were recovered from the SFDU data after the original release of this image. Calibration was completed and higher level data products were generated as appropriate. Associated ERRATA_ID: none Calibration algorithm updated to Version 4.0 for all VIS-RDR QUBEs ERRATA_ID = ODTVR-0002-1.7, ODTVR-0003-1.6, ODTVR-0004-1.5, ODTVR-0005-1.4, ODTVR-0006-1.4, ODTVR-0007-1.4, ODTVR-0008-1.2, ODTVR-0009-1.2, ODTVR-0010-1.1, ODTVR-0011-1.1 All THEMIS VIS-RDR QUBEs were reprocessed with a modified CAL_VIS_IMAGE algorithm, version 4.0; a description of this version is available in DOCUMENT/PROCESS.PDF. Entries in the CAL_VIS_IMAGE History object were modified as necessary to reflect the required inputs to the new calibration algorithm. The headers of all VIS-RDR QUBEs were also updated to include SOURCE_PRODUCT_VERSION_ID. Associated ERRATA_ID: ODTVB-0001-1.9, ODTVB-0002-1.7, ODTVB-0003-1.6, ODTVB-0004-1.5, ODTVB-0005-1.4, ODTVB-0006-1.4, ODTVB-0007-1.4, ODTVB-0008-1.2, ODTVB-0009-1.2, ODTVB-0010-1.1, ODTVB-0011-1.1 Calibration algorithm updated to Version 4.1 for all VIS-RDR QUBEs ERRATA_ID = ODTVR-0002-1.8, ODTVR-0003-1.7, ODTVR-0004-1.6, ODTVR-0005-1.5, ODTVR-0006-1.5, ODTVR-0007-1.5, ODTVR-0008-1.3, ODTVR-0009-1.3, ODTVR-0010-1.2, ODTVR-0011-1.2, ODTVR-0012-1.1, ODTVR-0013-1.1 All THEMIS VIS-RDR QUBEs were reprocessed with a modified CAL_VIS_IMAGE algorithm, version 4.1; a description of this version is available in DOCUMENT/PROCESS_VIS.PDF. Entries in the CAL_VIS_IMAGE History object were modified as necessary to reflect the required inputs to the new calibration algorithm. The headers of all VIS-RDR QUBEs were also updated to include SOURCE_PRODUCT_VERSION_ID. Associated ERRATA_ID: ODTVB-0001-2.0, ODTVB-0002-1.8, ODTVB-0003-1.7, ODTVB-0004-1.6, ODTVB-0005-1.5, ODTVB-0006-1.5, ODTVB-0007-1.5, ODTVB-0008-1.3, ODTVB-0009-1.3, ODTVB-0010-1.2, ODTVB-0011-1.2, ODTVB-0012-1.1, ODTVB-0013.1.1 VIS-ABRs updated due to source VIS-RDR processing update ERRATA_ID = ODTVB-0001-2.0, ODTVB-0002-1.8, ODTVB-0003-1.7, ODTVB-0004-1.6, ODTVB-0005-1.5, ODTVB-0006-1.5, ODTVB-0007-1.5, ODTVB-0008-1.3, ODTVB-0009-1.3, ODTVB-0010-1.2, ODTVB-0011-1.2, ODTVB-0012-1.1, ODTVB-0013.1.1 CAL_VIS_IMAGE processing of source VIS-RDR products was updated and all VIS-BTR images were recreated from the revised files. Associated ERRATA_ID: ODTVR-0002-1.8, ODTVR-0003-1.7, ODTVR-0004-1.6, ODTVR-0005-1.5, ODTVR-0006-1.5, ODTVR-0007-1.5, ODTVR-0008-1.3, ODTVR-0009-1.3, ODTVR-0010-1.2, ODTVR-0011-1.2, ODTVR-0012-1.1, ODTVR-0013-1.1 VIS-GEO projected CUBEs available for previously released Visible images ERRATA_ID = ODTVG-0001-1.1, ODTVG-0002-1.1, ODTVG-0003-1.1, ODTVG-0004-1.1, ODTVG-0005-1.1, ODTVG-0006-1.1, ODTVG-0007-1.1, ODTVG-0008-1.1, ODTVG-0009-1.1, ODTVG-0010-1.1, ODTVG-0011-1.1, ODTVG-0012-1.1, ODTVG-0013-1.1 Visible geometrically projected products were made available in the PDS archive after the original release of the source calibrated data (VIS-RDR). A complete description of these products is available in GEOMETRY/GEOMETRY.PDF. Associated ERRATA_ID: none VIS-EDRs recovered from corrected SFDU; higher level processing completed ERRATA_ID = ODTVE-0010-1.2, ODTVE-0011-1.1, ODTVE-0012-1.1, ODTVB-0011-1.3, ODTVB-0012-1.2, ODTVR-0011-1.3, ODTVR-0012-1.2 The correct data packets for this image were recovered from the SFDU data after the original release of this image. Calibration was completed and higher level data products were generated as appropriate. Associated ERRATA_ID: none VIS-EDRs, VIS-RDRs, and VIS-BTRs updated with recalculated START_TIMEs ERRATA_ID = ODTVE-0014-1.1, ODTVE-0013-1.1, ODTVE-0015-1.1, ODTVR-0013-1.2, ODTVR-0014-1.1, ODTVR-0015-1.1, ODTVB-0013-1.2, ODTVB-0014-1.1, ODTVB-0015-1.1 The headers of all THEMIS VIS-EDR QUBEs with an INTERFRAME_DELAY less than 1.0 have been regenerated with SFDU2CUBE version 1.67 to correct a bug in the calculation of the following start time keyword values: - START_TIME, START_TIME_ET, and SPACECRAFT_SCLK_START_COUNT The corrected START_TIME values were then propagated to the headers of the VIS-RDR QUBEs and VIS-ABR IMGs. All products were regenerated, but this change should not affect the data contents of any of the products. Associated ERRATA_ID: ODTVG-0013-1.2, ODTVG-0014-1.1, ODTVG-0015-1.1 VIS-GEO Projection regenerated with recalc START_TIMEs ERRATA_ID: ODTVG-0013-1.2, ODTVG-0014-1.1, ODTVG-0015-1.1 The start time keyword values in the source VIS-RDR product were updated and the changes were used to regenerate the VIS-GEO product. Note that changes to any timing keyword values will affect the projected location, and possibly the data contents, of the image. Associated ERRATA_ID: ODTVE-0014-1.1, ODTVE-0013-1.1, ODTVE-0015-1.1, ODTVR-0013-1.2, ODTVR-0014-1.1, ODTVR-0015-1.1, ODTVB-0013-1.2, ODTVB-0014-1.1, ODTVB-0015-1.1 VIS-GEO Quality of image improved ERRATA_ID: ODTVG-0006-1.2, ODTVG-0009-1.2, ODTVG-0012-1.2, ODTVG-0013-1.3, ODTVG-0014-1.2 Selected VIS-GEO products were regenerated with modified projection parameters to improve the quality of the image. The parameters used in the new projection are detailed in HISTORY objects in the product label. Associated ERRATA_ID: none All IR-EDR headers updated to include SUMMING keywords ERRATA_ID: ODTIE-0001-1.4, ODTIE-0002-1.3, ODTIE-0003-1.4, ODTIE-0004-1.2, ODTIE-0005-1.2, ODTIE-0006-1.2, ODTIE-0007-1.3, ODTIE-0008-1.2, ODTIE-0009-1.2, ODTIE-0010-1.1, ODTIE-0011-1.1, ODTIE-0012-1.1, ODTIE-0013-1.1, ODTIE-0014-1.1, ODTIE-0015-1.1, ODTIE-0016-1.1, ODTIE-0017-1.1, ODTIE-0017-1.2 The headers of all THEMIS IR-EDR QUBEs have been updated with the following modifications to make them compatable with SFDU2CUBE version 1.67: - added keyword RICE_FLAG - added keyword SPATIAL_SUMMING - added keyword PARTIAL_SUM_LINES See DOCUMENT/SDPSIS.PDF for detailed keyword descriptions. Associated ERRATA_ID: none IR-EDR Image length corrected ERRATA_ID: ODTIE-0003-1.5, ODTIE-0004-1.3, ODTIE-0005-1.3, ODTIE-0009-1.3, ODTIE-0011-1.2, ODTIE-0012-1.2 Corruption in the SFDU packets caused the original version of this image to be too long; the extra lines were padded with NULL values. The problem was corrected and higher level data products were generated from the new EDR as appropriate. Associated ERRATA_ID: none IR-EDRs recovered from corrected SFDU ERRATA_ID: ODTIE-0017-1.2 The data packets for this image were recovered from the SFDU data after the original release of these orbits. Calibration was completed and higher level products were generated as appropriate. Associated ERRATA_ID: none Revised projection parameters ERRATA_ID: ODTVG-0017-1.1 Several VIS-GEO products were regenerated with revised projection parameters; parameters used are defined in the HISTORY object of each product label. Associated ERRATA_ID: none UDDW added to BTR processing ERRATA_ID: ODTIB-0020-1.1, ODTIB-0021-1.1, ODTIB-0022-1.1 All THEMIS BTR IMGs have been reprocessed with a signal drift correction (UDDW) applied before the translation of radiance values into temperature values. This correction usually results in a slight decrease of brightness temperature values as compared to the previous calculation method. See the DOCUMENT/PROCESS_IR.pdf for a complete description of BTR processing. Associated ERRATA_ID: none Correction to UDDW for handling dropouts ERRATA_ID: ODTIB-0020-1.2, ODTIB-0021-1.2, ODTIB-0022-1.2, ODTIB-0023-1.1 A correction was made to improve how the UDDW script (applied for signal drift correction) handles data dropouts in the image. Depending on the exent and location of the dropouts, the revised processing may result in significantly modified brightness temperatures throughout the image. Associated ERRATA_ID: none Updated CAL_IR_IMAGE software v5.1 for all images ERRATA_ID: ODTIR-0016-1.1, ODTIR-0017-1.1 All THEMIS IR-RDR QUBEs were reprocessed with CAL_IR_IMAGE version 5.1 which includes appropriate handling of spatially summed images, modifications to the destripe algorithm, setting embedded reset image lines to CORE_NULL, and propagation of the SPATIAL_SUMMING keyword in the header. A full description of the CAL_IR_IMAGE process is available in DOCUMENT/PROCESS_IR.PDF. Associated ERRATA_ID: ODTIB-0016-1.1, ODTIB-0017-1.1 Updated CAL_IR_IMAGE software v5.1 for summed images ERRATA_ID: ODTIR-0018-1.1, ODTIR-0019-1.1 All THEMIS IR-RDR QUBEs with spatial summing were reprocessed with CAL_IR_IMAGE version 5.1 which appropriatly handles the adjusted width of these images. A full description of this version is available in DOCUMENT/PROCESS_IR.PDF. Associated ERRATA_ID: ODTIB-0018-1.1, ODTIB-0019-1.1 UDDW added to BTR processing ERRATA_ID: ODTIB-0016-1.1, ODTIB-0017-1.1, ODTIB-0018-1.1, ODTIB-0019-1.1 CAL_IR_IMAGE processing of source IR-RDR product was updated and all IR-BTR images were recreated from the revised files and any header updates were propagated forward. The BTR processing now includes a signal drift correction (UDDW) applied before the translation of radiance values into temperature values. See the DOCUMENT/PROCESS_IR.pdf for a complete description of BTR processing. Associated ERRATA_ID: ODTIR-0016-1.1, ODTIR-0017-1.1, ODTIR-0018-1.1, ODTIR-0019-1.1 VIS-GEO products regenerated following discovered corruption ERRATA_ID: ODTVG-0002-1.2, ODTVG-0003-1.2, ODTVG-0004-1.2, ODTVG-0005-1.2, ODTVG-0006-1.3, ODTVG-0007-1.2, ODTVG-0008-1.2, ODTVG-0009-1.3, ODTVG-0011-1.2, ODTVG-0012-1.3, ODTVG-0013-1.4, ODTVG-0014-1.3, ODTVG-0015-1.2 During a minor HEADER keyword update (see Section-B 2008-10-01 entry), 116 VIS-GEO products were identified as being corrupted and the products were regenerated. Associated ERRATA_ID: NONE High temperature bug in processing script corrected ERRATA_ID: ODTIB-0025-1.1, ODTIB-0026-1.1, ODTIB-0027-1.1, ODTIB-0028-1.1, ODTIB-0029-1.1 An error in the Brightness Temperature Record (BTR) processing script was identified and corrected. It caused calculated temperatures to be too high, usually by about 40 degrees. Images with less than 10 bands were most affected, however all BTRs generated with the corrupt script are regenerated. Associated ERRATA_ID: NONE Reprocessing for full projection format ERRATA_ID: ODTIG-0027-1.1, ODTIG-0028-1.1, ODTIG-0029-1.1 The projection format of GEO derived products (PBT and DCS) changed and reprocessing of this product was required. There is likely no change to the GEO data, however the new version has been released for consistency within the archive. Associated ERRATA_ID: ODTIP-0027-1.1, ODTIP-0028-1.1, ODTIP-0029-1.1 High temperature bug in processing script corrected; Full projection format change ERRATA_ID: ODTIP-0027-1.1, ODTIP-0028-1.1, ODTIP-0029-1.1 An error in the Projected Brightness Temperature (PBT) processing script was identified and corrected. It caused calculated temperatures to be too high, usually by about 40 degrees. Images with less than 10 bands were most affected, however all BTRs generated with the corrupt script are regenerated. The format of all PBT images has been updated to display the image in the full projection orientation. The RECTIFY keywords are no longer necessary and have been removed from the header. Associated ERRATA_ID: ODTIG-0027-1.1, ODTIG-0028-1.1, ODTIG-0029-1.1 Updated CAL_IR_IMAGE software v5.1 for all images ERRATA_ID: ODTIR-0003-1.6 ODTIR-0004-1.4 ODTIR-0005-1.2 All THEMIS IR-RDR QUBEs were reprocessed with CAL_IR_IMAGE version 5.1 which includes appropriate handling of spatially summed images, modifications to the destripe algorithm, setting embedded reset image lines to CORE_NULL, and propagation of the SPATIAL_SUMMING keyword in the header. A full description of the CAL_IR_IMAGE process is available in DOCUMENT/PROCESS_IR.PDF. Associated ERRATA_ID: ODTIB-0003-1.5 ODTIB-0004-1.3 ODTIB-0005-1.2 UDDW added to BTR processing ERRATA_ID: ODTIB-0003-1.5 ODTIB-0004-1.3 ODTIB-0005-1.2 CAL_IR_IMAGE processing of source IR-RDR products was updated and all IR-BTR images were recreated from the revised files and any header updates were propagated forward. The BTR processing now includes a signal drift correction (UDDW) applied before the translation of radiance values into temperature values. See the DOCUMENT/PROCESS_IR.pdf for a complete description of BTR processing. During this reprocessing, a limited number of previously released IR-BTRs were identified as being unusable and have been removed from the archive. Associated ERRATA_ID: ODTIR-0003-1.6 ODTIR-0004-1.4 ODTIR-0005-1.2 GEO projections available ERRATA_ID: ODTIG-0003-1.1 ODTIG-0004-1.1 ODTIG-0005-1.1 This special geometrically projected product was made available in the PDS archive after the original release of the source calibrated data (RDR). Associated ERRATA_ID: ODTIP-0003-1.1 ODTIP-0004-1.1 ODTIP-0005-1.1 PBT products available ERRATA_ID: ODTIP-0003-1.1 ODTIP-0004-1.1 ODTIP-0005-1.1 This special projected brightness product was made available in the PDS archive after the original release of the source calibrated data (RDR). Associated ERRATA_ID: ODTIG-0003-1.1 ODTIG-0004-1.1 ODTIG-0005-1.1 -------------------------------------------------------------------------- Section-B 2003-01-01 Unavailable Documents The following documents are not available as of January 1, 2003. They will be posted to the website as soon as possible. - AAREADME.HTM - CALIB/PROCESS.HTM - all CATALOG/ODTaaDS.CAT - DOCUMENT/ARCHSIS.HTM and DOCUMENT/ARCHSIS.PDF - DOCUMENT/SDPSIS.HTM and DOCUMENT/SDPSIS.PDF - all documents and tables in the INDEX subdirectory - all documents and files in the SOFTWARE subdirectory 2003-04-01 Typographical and format corrections to CATALOG files A keyword in the CATALOG/ODTVBREL.CAT was modified to correctly read: DATA_SET_ID = "ODY-M-THM-3-VISABR-V1.0". The date was added to the REFERENCE_KEY_ID and REFERENCE_DESC for the THEMIS Calibration Report in the CATALOG/REF.CAT and CATALOG/INST.CAT files. Line length corrections were made as needed to all CATALOG/*.CAT files to conform to the PDS standard of 70 characters per line. 2003-07-01 File format of BROWSE images changed All BROWSE images are now provided in PNG file format; these were previously provided in JPG file format. There is no change to the file format of the THUMBNAIL images. This change has been reflected in the following supporting documentation: AAREADME, BROWSE/BROWINFO.TXT, DOCUMENT/ARCHSIS.PDF (and LBL) 2003-10-01 VIS browse image geometric projection changed VIS browse images, previously generated with predictive geometry, are now geometrically projected using spacecraft kernel data which assumes THEMIS is nadir pointed. The images correspond with the VIS ABR IMGs containing the keyword value GEOMETRY_SOURCE_DESC = "Nadir pointing assumed" (see above ERRATA_ID = ODTVB-0001-1.5, etc.) VIS browse images at high latitudes (i.e. latitude greater than 60 degrees) are now projected using a polar stereographic projection, rather than the sinusoidal projection used for the lower latitudes. 2004-01-01 VIS browse image stretch changed VIS browse images are generated from the most highly calibrated image available, then stretched so that features are not lost in the process of reducing the image to 8 bits per pixel for storage as a PNG. For this release, all VIS browse images have been re-generated with a slightly different stretch; the new stretch avoids saturation in the darkest and brightest regions, while slightly suppressing the details in the median gray regions. As always, the full resolution data is available in the other standard data products. 2004-01-01 Typographical error in AAREADME corrected A minor typographical error was corrected in the AAREADME files. The error incorrectly listed the PNG and JPG files as having 24 bits per pixel; both formats are 8 bits per pixel. 2004-04-01 SFDU2CUBE version 1.60 SFDU2CUBE, the algorithm used to generate EDR QUBEs, has been updated to version 1.60. The modifications only affect the verbosity to the operator during the QUBE generation process, and do not change the structure or contents of the QUBE produced. For the purposes of the THEMIS data user, EDR QUBEs generated with SFDU2CUBE version 1.60 are equivalent to EDR QUBEs generated with SFDU2CUBE version 1.59, and both versions are correctly described in DOCUMENT/SDPSIS.PDF, October 2003 version. 2204-07-01 Addition of Index files to archive volumes Index files were made available in the THEMIS archive volume coincident with the July 2004 release. The AAREADME.* and DOCUMENT/ARCHSIS.* files were updated to reflect the addition of the index files in the archive directory structure. 2004-07-01 Special format of Index files There are four types of index tables available with the THEMIS data sets; see the INDEX/INDXINFO.TXT for a description of contents and usage of each index. The INDEX_ODTaz and CMIDX_ODTaz tables follow the PDS INDEX_TABLE specialized TABLE object format, however, they are simply identified as TABLE objects in their respective labels. 2004-10-01 Updates to AAREADME and files in DOCUMENT directory In the DOCUMENT/SDPSIS.PDF, the reference for THEMIS document [6], previously listed as 'submitted', has been completed as follows: The Thermal Emission Imaging System (THEMIS) for the Mars 2001 Odyssey Mission, P.R. Christensen, et. Al., Space Science Review, Vol 110, pp 85-130, 2004. HTML versions of the AAREADME, DOCUMENT/ARCHSIS, and DOCUMENT/SDPSIS were generated and made available. The SDPSIS.HTM and the associated image files are available in a new subdirectory DOCUMENT/SDPSIS_HTM. The AAREADME and ARCHSIS were modified to include the new subdirectory. 2004-10-01 Known gap in data collection: 9100-9199 No visible images were successfully collected between orbits 9100 and 9199. 2005-01-01 Update to CALIB/PROCESS document The CALIB/PROCESS document, version 0.10, has been updated to describe the current infrared calibration routine CAL_IR_IMAGE v4.8. The primary modification to this routine is in the STRAYLIGHT algorithm, geom_ghost routine (section 2.3). This routine was modified to improve the simulation of the downtrack optical offsets, thereby improving the effectiveness of the STRAYLIGHT removal process. 2005-04-01 Known gap in data collection: 12200-12298 No infrared images were collected between orbits 12200 and 12298 due to Mars Odyssey Solar Conjunction 2004. Limited visible images were collected for the purpose of monitoring THEMIS instrument health; all have significant data loss. 2005-07-01 SFDU2CUBE version 1.64 SFDU2CUBE, the algorithm used to generate EDR QUBEs, has been updated to version 1.64. The modifications fix a bug in the generation of VIS-EDR QUBEs which have an INTERFRAME_DELAY value other than 1.0. There is no change to the structure or the contents of the QUBE produced. For the purposes of the THEMIS data user, EDR QUBEs generated with SFDU2CUBE version 1.64 are equivalent to EDR QUBEs generated from previous versions of SFDU2CUBE; all versions are correctly described in DOCUMENT/SDPSIS.PDF, July 2005 version. 2005-07-01 Update to documentation related to CAL_VIS_IMAGE Version 4.0 The following documentation was updated to reflect the modifications associated with the use of CAL_VIS_IMAGE, Version 4.0. DOCUMENT/SDPSIS - Version July 1, 2005 CALIB/*_FILES/* - various files used in new calibration available CALIB/PROCESS - updates will be available as soon as possible 2005-07-01 Corrections to INDEX tables and labels Geometry values were updated in INDEX/THMIDX_IR.TAB for the following images: I09024002, I09052001, I09053009, I09055008, I09068010, I09071002, I09072002, I09073002, I09078002, I09079002, I09080002, I09081002. The DESCRIPTION for PRODUCT_TYPE in all INDEX/INDEX_ODTxx.LBL files was corrected to read "Processing type suffix used in PRODUCT_ID." 2005-10-01 Character corrected in MISSION.CAT An illegal character was corrected in the CATALOG/MISSION.CAT. 2006-01-01 Update to documentation related to revisions in Visible products The following documentation was updated to reflect the modifications associate with the use of CAL_VIS_IMAGE, Version 4.1, and/or the availability of the VIS-GEO products AAREADME* - publication date 2006-01-01 DOCUMENT/ARCHSIS - Version January 1, 2006 CALIB/*_FILES/* - various files used in new calibration available CALIB/PROCESS* - Version January 1, 2006 and split into two sections covering IR or VIS processing CATALOG/CATINFO.TXT - table of contents for the catalog directory The following documentation was added to the PDS archive CATALOG/ODTVGREL.CAT - release object for the VIS-GEO data set GEOMETRY/GEOINFO.TXT - table of contents for the geometry directory GEOMETRY/GEOMETRY* - text files describing the VIS-GEO products GEOMETRY/ODTVG*/ODTVGVOL.CAT - catalog object for the VIS-GEO archive volume INDEX/INDEX_ODTVG* - index listing release information for the VIS-GEO products 2006-04-01 Odyssey spacecraft in yaw orientation during orbits 15621 to 16558 In order to mitigate potential communication problems, the Odyssey spacecraft performed several yaw maneuvers which changed the nominal mapping orientation between June and September 2005. The yaw maneuver is a discrete, counterclockwise rotation around the THEMIS boresight. During the yaw periods, summarized below, the geometry provided for the THEMIS images correctly accounts for the position of the spacecraft. ORBIT_RANGE YAW_ANGLE 816-15620 0 degrees 15621-15790 5 degrees 15791-16410 12 degrees 16411-16558 5 degrees 16559-present 0 degrees The yaw orientation is most obvious in geometrically projected visible (VIS-GEO) images, as each framelet appears to be rotated relative to the image length. This is the only effect on the visible images; there is no change to the quality of the calibrated radiance. While less obvious in the projected infrared images, the effect of the yaw maneuvers on the infrared data is more severe. In the nominal mapping orientation each line of an infrared image is collected perpendicular to the flight direction, and Time-Delay Integration (TDI) can be used to improve the signal-to-noise ratio of each pixel by co-adding 16 measurements of each image line. However, the use of TDI during the yaw orientation has the effect of "blurring" together adjacent pixels in each line. Since TDI was enabled throughout the yaw periods, the cross-track spatial resolution has been compromised in all yaw infrared images; the values for infrared pixel resolution (LINE_RES_KM and SAMPLE_RES_KM) calculated by ISIS and available in the THMIDX_IR.TAB are incorrect. At this time, the THEMIS team recommends that IR-RDR data from orbits 15621 to 16558 be used with caution. These data should not be used for compositional analysis, as there are known problems resulting from using the standard infrared calibration algorithms. Any attempts to compensate for the affects of the yaw orientation within the calibration routine will be announced and documented with the appropriate errata entries. 2006-07-01 Corrections to INDEX_ODTVG FILE_SPECIFICATION_NAME The FILE_SPECIFICATION_NAME for all VIS-GEO products listed a non-existant directory path; this was corrected in the INDEX_ODTVG.TAB for all records. Various BYTE keywords in the INDEX_ODTVG.LBL were adjusted to accommodate the slightly longer corrected path. 2006-12-01 and 2007-01-01 Update to documentation related to spatial summing in Infrared products Sections of the THEMIS SDPSIS were updated to describe the new spatial summing capability of the infrared camera; the appendices were updated with the QUBE header modifications required to correctly describe the characteristics of the summed infrared image data. 2007-07-01 Known gap in data collection: 21432-21676 No infrared or visible images were collected between orbits 21432 and 21676 due to Mars Odyssey Solar Conjunction 2006. Limited infrared reset (R-EDRs) were collected for the purpose of monitoring THEMIS instrument telemetry. 2007-10-01 New text file: NODATA.TXT A new text file is now available in any data, browse, or geometry directory that is known to have no image data files (for example, see BROWSE/V091XX/NODATA.TXT). Empty directories that do not contain this file should be brought to the attention of the host facility (archive@mars.asu.edu). 2007-10-02 Corrections to THMIDX_IR Geometry Values Various geometric values were corrected in the THMIDX_IR table for the following images: I02484005 I02784005 I02823006 I02923002 I02928002 I02934005 I02965002 I02983002 I04426005 I04461002 I05263015 I09601010 I09607011 I09649010 I11998007 I17385015 I17846017 I18147014 I18283012 I18355008 I18880006 I19506001 R03221001 No change to the image data files was necessary. 2008-04-01 Correction in VIS-GEO Labels: 16800-24599 A duplicate keyword was discovered in the labels of almost all VIS-GEO products in orbits 16800 through 24599. The label was corrected and released; there is no chage to the referenced VIS-GEO projected CUBE file. 2008-04-01 Update to CALIB/PROCESS_IR document The CALIB/PROCESS_IR document, version 0.21, has been updated to describe the current infrared calibration routine CAL_IR_IMAGE v5.1. The majority of the modifications to this document describe how IR spatially summed images are collected and handled. There is also a change as to how IR-BTR images are produced. 2008-07-01 Known anomalous VIS images Due to an anomaly of the THEMIS VIS camera, all images in orbits 25732-25822 are null on the east half of the image. Processing has been completed as much as possible, however these images should be used with caution. 2008-10-01 to 2009-04-01 Typographic error in VIS-GEO Labels There is a typographic error in all VIS-GEO labels for orbits 816-26799. The corrected keyword and value pair should read CORE_ITEM_TYPE = LSB_INTEGER The keyword values in the attatched label are correct. Previously released VIS-GEO products will be corrected over the course of the next few months. Since this correction does not affect the CUB file no errata will be issued. In the course of the label correction, 120 released products (out of 95,600 total ) were found to be corrupted and have been regenerated. Errata objects and indexes have been appropriately updated. 2009-04-01 Error in VIS-GEO Index The PRODUCT_VERSION_ID value of "0.0" was updated to the correct value of "1.0" for all VIS-GEO products in orbits 19000 through 28999. The value was correct in the individual product labels. 2009-04-01 Typographical errors corrected in lables Minor typographical errors in the DESCRIPTION of the following files has been corrected: I01261005, V01261006, V03249001, V05517007, V06248003, V06260001, V06270002. The keyword value was corrected without touching the data, therefore no version update will be issued. 2009-07-01 Updates to documentation related to availablity of IR-GEO special products The following documentation was updated to reflect the availablity of the Infrared special projected products (IR-GEO, IR-DCS, and IR-PBT): AAREADME* - publication date 2009-07-01 CALIB/PROCESS_IR.PDF - Version July 1, 2009 CATALOG/CATINFO.TXT - table of contents for the catalog directory DOCUMENT/ARCHSIS - Version July 1, 2009 GEOMETRY/GEOINFO.TXT - table of contents for the geometry directory GEOMETRY/GEOMETRY* - Version July 1, 2009 INDEX/INDINFO.TXT - table of contents for the index directory The following documentation was added to the THEMIS PDS archive CATALOG/ODTIGREL.CAT - release object for the IR-GEO data set CATALOG/ODTIPREL.CAT - release object for the IR-PBT data set GEOMETRY/ODTIG*/ODTIGVOL.CAT - catalog object for the IR-GEO archive volume GEOMETRY/ODTIP*/ODTIPVOL.CAT - catalog object for the IR-PBT archive volume INDEX/INDEX_ODTIG* - index listing release information for the IR-GEO products INDEX/INDEX_IRDCS* - index listing release information for the IR-DCS products INDEX/INDEX_ODTIP* - index listing release information for the IR-PBT products 2009-07-15 Known gap in data collection: 30821-31075 No infrared or visible images were collected between orbits 30821 and 31075 due to Mars Odyssey Solar Conjunction 2008. Limited infrared reset (R-EDRs) were collected for the purpose of monitoring THEMIS instrument telemetry. 2009-07-15 New keywords added to headers to describe Odyssey orientation To improve image documentation during the periods when the Odyssey spacecraft is not pointed at true nadir, four new keywords have been added to the headers of all THEMIS standard and special data products. The keywords are SPACECRAFT_ORIENTATION, SPACECRAFT_ORIENTATION_DESC, SPACECRAFT_POINTING_MODE, and SPACECRAFT_POINTING_MODE_DESC A complete description of the values for these keywords is available in the new document DOCUMENT/ODY_ORIENT_POINT.TXT. Other virtual volume documentation that has been updated to reflect these changes to the THEMIS datasets include AAREADME, DOCUMENT/DOCINFO.TXT, DOCUMENT/ARCHSIS, and DOCUMENT/SDPSIS. These keywords are available in all products starting with orbit 30100; they will be populated in all previously released products as soon as possible, starting with images collected while Odyssey was pointed away from nadir. 2009-10-01 Known gaps in data collection: 31836-31863 and 32090-32138 No visible images were collected between orbits 31836 and 31863. No infrared or visible images were collected between orbits 32090 and 32138. 2010-01-01 Update to GEOMETRY/GEOMETRY document The GEOMETRY/GEOMETRY document has been updated to describe the change in display format of the IR-PBT and IR-DCS products. These products were previously provided in the RECTIFIED display format for conservation of disk space; they are now provide in the full projection display format for ease of viewing. 2010-04-01 Corrected format of IR-DCS (orbit 5000-5199) DCS images in orbits 5000-5199 were erroneously released in the outdated RECTIFIED display format (see above 2010-01-01 ERRATA item). The DCS images were regenerated from the available IR-GEO product and replaced in the online data archive. 2010-07-01 Corrected data type statements in DATA/TLM.FMT The DATA/TLM.FMT file previously contained several bit_columns composing the IRIS_STATUS bit string with errors in the DATA_TYPE keyword value pair. The corrrected DATA/TLM.FMT file now lists all these bit_columns as having BIT_DATA_TYPE = MSB_UNSIGNED_INTEGER The corrected file is available in all IR-EDR directories staring with orbit 34500; corrections to the TLM.FMT file in previously released directories will be made coincident with other IR-EDR reprocessing activities. 2010-10-01 Bad start/stop times in Infrared EDR, RDR, and BTR Headers Infrared headers of EDR qubes, RDR qubes, and BTR images for orbits 18584-18595 were corrected for erroneous null values in the START_TIME_ET and STOP_TIME_ET keywords. The image data itself was not corrupt, but it was regenerated as part of the effort to correct the header values. 2012-01-05 Replaced missing files during hardware upgrade During a disk hardware upgrade the several files were discovered missing and were replaced; since no new data was generated, individual files were not tagged with errata version information. The files include: - the TLM.FMT from many infrared EDR directories - many of the the V284XXEDR/*EDR.QUBs - many DCS.png files from these orbit ranges: 8000-9099 10000-14599 16800-17899 27200-27299 2012-07-01 Update to GEOMETRY/GEOMETRY document describing DESPECKLE processing The GEOMETRY/GEOMETRY document has been updated to describe the new DESPECKLE processing applied to selected VIS-GEO products. This processing step is only necessary when onboard image corruption produces anomalous bright (or dark) pixels in variable patterns throughout the image. When applied, the individual VIS-GEO label will be tagged with a DESPECKLE history object detailing the processing step and parameters used. Concurrent with this document update, less than 10 VIS-GEO products in RELEASE_ID=0040 have the DESPECKLE processing applied. Previously published VIS-GEO products with similar corruption will have the DESPECKLE processing applied and will be re-released during a future release. 2012-10-01 Minor typographical errors corrected in CATALOG files Minor typographical errors related to use of quotes were corrected in the CATALOG/INST.CAT and ODT*REL.CAT files. 2012-10-01 Update to GEOMETRY/GEOMETRY document describing new HISTORY object Appendix 7 has been added to the GEOMETRY/GEOMETRY document to describe a new HISTORY object added to GEO.LBL files of images collected after January 2012. The new GEOMETRY QUALITY HISTORY object details parameters affecting the geometric accuracy of each image, espcially with respect to the M01 Odyssey attitude control mode enabled during image collection. 2014-04-01 New keywords added to IMGAGE headers and described in DOCUMENT/SDPSIS VIS-ABR and IR-BTR IMAGE files have slight modifications to the attached ascii headers. All image headers now contain the MD5_CHECKSUM keyword-value pair which can be used to verify the intgrity of the data. IR-BTR headers also contain keywords describing the scientific meaning of the data values: SAMPLE_NAME = "BRIGHTNESS_TEMPERATURE" SAMPLE_UNIT = "KELVIN" All changes are documented in the appropriate DOCUMENT/SDPSIS appendicies. Previously published IMAGE products will have the headers modified during a future re-release. 2014-07-15 THEMIS VOLUME_SET divided between projected and non-projected products In July 2014, the THEMIS data previouly published as part of the VOLUME_SET_NAME = "MARS ODYSSEY THEMIS" (VOLUME_SET_ID = USA_NASA_PDS_ODT) was split into two new volumes. The non-projected data products, including DATA_SET_IDs {"ODY-M-THM-2-IREDR-V1.0", "ODY-M-THM-2-VISEDR-V1.0", "ODY-M-THM-3-IRRDR-V1.0", "ODY-M-THM-3-VISRDR-V1.0", "ODY-M-THM-3-IRBTR-V1.0", "ODY-M-THM-3-VISABR-V1.0"}, are now included in the new VOLUME_SET_NAME = "MARS ODYSSEY THEMIS STANDARD PRODUCTS" (VOLUME_SET_ID = USA_NASA_PDS_ODTSDP). The projected products, including DATA_SET_IDs {"ODY-M-THM-5-IRGEO-V1.0","ODY-M-THM-5-VISGEO-V1.0", "ODY-M-THM-5-IRPBT-V1.0"}, are now included in the new VOLUME_SET_NAME = "MARS ODYSSEY THEMIS PROJECTED PRODUCTS" (VOLUME_SET_ID = USA_NASA_PDS_ODTGEO). 2014-07-15 THEMIS Projected Products Version-1 Concluded The March 2014 release of the THEMIS Projected Products (VOLUME_SET_ID = USA_NASA_PDS_ODTGEO) was the last release of data products generated using the ISIS-v2 projection software. All future THEMIS Projected Products will be generated using the ISIS-v3 projection software; previously released products will be re-released (timeline to-be-determined). The ODTGEO_v1 volume structure reflects the organization as it was when published as part of the unified USA_NASA_PDS_ODT volume; therefore, the data and browse directories are located under the GEOMETRY subdirectory. All the remaining documents and data in this volume tree are as published in March 2014, except as follows: - ERRATA.TXT: file you are reading; documents the changes and/or issues related to concluding this version of the products - VOLDESC.CAT: values as per new VOLUME_SET_ID = USA_NASA_PDS_ODTGEO - CATALOG/CATINFO.TXT: reflects the contents of only this archive volume - DOCUMENT/DOCINFO.TXT: reflects the contents of this archive volume only - INDEX/INDXINFO.TXT: reflects the contents of this archive volume only (all INDEX tables are cumulative) - GEOMETRY/NODATA.TXT: reflects the contents of this archive volume only; includes the list of unpublished projected data product diretories