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Release Information of the Processing Software

PRISM Data Processing Software
AVNIR-2 Data Processing Software
PALSAR Level 1.0 Data Processing Software
PALSAR Core Processing Software

PRISM Data Processing Software

Release
Date
Remarks
2012.03.15 (BF) Deal of Filter processing errors due to corruption during processing of the number of dummy pixels PRISM 1B1
2011.06.06 (CP) PRISM Pointing alignment parameters updated (Update version of May 25, 2011)
2011.03.29 (CP) PRISM Pointing alignment parameters updated (Update version of Mar 28, 2011)
2011.01.27 (CP) PRISM Pointing alignment parameters updated (Update version of Jan 26, 2011)
2010.12.02 (CP) PRISM Pointing alignment parameters updated (Update version of Dec 1, 2010)
2010.09.30 (CP) PRISM Pointing alignment parameters updated (Update version of Sep 29, 2010)
2010.09.07 (BF) Corrected an occurrence of error caused by reading time information when precision orbit data is applied on 1B1 processing.
2010.08.04 (CP) PRISM Pointing alignment parameters updated (Update version of Aug 3, 2010)
2010.05.27 (CP) PRISM Pointing alignment parameters updated (Update version of May 26, 2010)
2010.03.30 (CP) PRISM Pointing alignment parameters updated (Update version of March 24, 2010)
2010.02.04 (CP) PRISM Pointing alignment parameters updated (Update version of February 3, 2010)
2009.12.15 (CP) PRISM Pointing alignment parameters updated (Update version of December 2, 2009)
2009.10.01 (CP) PRISM Pointing alignment parameters updated (Update version of September 30, 2009)
2009.09.29 (BF) PRISM image abnormality appeared in GeoCoded images of ascending passes are resolved.
2009.07.29 (CP) PRISM Pointing alignment parameters updated (Update version of July 28, 2009)
2009.05.27 (CP) PRISM Pointing alignment parameters updated (Update version of May 25, 2009)
2009.04.01 (BF) Corrected a processing error involved when a scene of PRISM (forward view) close to the date boundary.
(CP) PRISM Pointing alignment parameters updated (Update version of March 25, 2009)
2009.01.29 (CP) PRISM Pointing alignment parameters updated (Update version of Jan 27, 2009)
2008.11.26 (CP) PRISM Pointing alignment parameters updated (Update version of Nov 25, 2008)
2008.09.25 (CP) PRISM Pointing alignment parameters updated (Update version of Sep 24, 2008)
2008.07.25 (CP) PRISM Pointing alignment parameters updated (Update version of July 24, 2008)
2008.07.04 (BF)Corrected an anomaly involved when predictive orbital information is applied to process the data crossing a boundary of dates.
(BF)Corrected an anomaly involved when applying filter processing program to the data observed without yaw steering.
2008.05.27 (CP) PRISM Pointing alignment parameters updated (Update version of May 26, 2008)
2008.03.28 (BF)Corrected an anomaly involved when only predictive orbital information is aplied to a period crossing a boundary of dates.
(BF)Corrected an anomaly in retrieving the image data from a file having data corresponding to image lines.
2008.03.18 (CP) PRISM Pointing alignment parameters updated (Update version of March 17, 2008)
2008.01.28 (CP)The unit of length applied to ALOS Conventional Orbit Data
(Predictive) in PRISM Leader file "ancillary 3" is consistently set to meters even when this type of data do solely exist.
2008.01.18 (CP) PRISM Pointing alignment parameters updated (Update version of January 16, 2008)
2007.10.30 (CP) PRISM Pointing alignment parameters updated (Update version of October 29, 2007)
2007.10.19 (CS)Update radiometric correction algorithm of PRISM Level 1 processing:
Reduction of stripe noises (Vertical stripe)
2007.08.30 (CP) PRISM Pointing alignment parameters updated (Update version of Aug 29, 2007)
2007.07.19 (CP) PRISM Pointing alignment parameters updated (Update version of July 17, 2007)
2007.07.17 (CP) Parameters of geometric model changed.
Changed Parameters : Relative alignment among CCD elements
2007.04.27 (CP) Geometric model parameters Updated.
(BF) Error in pixel value calculation when processing data acquired on ascending path corrected.
2007.04.23 (CP) PRISM Pointing alignment parameters updated (Update version of April 20, 2007)
2007.04.16 (CP)Cloud Coverage Information Parameter was updated.
2007.04.04 (BF)Comparison processing trouble correction in frame first time and cutting out start time when linegeneration process.
2007.03.28 (CP)Cloud/ice evaluation coefficients was updated.
2007.03.26 (CP) PRISM Pointing alignment parameters updated (Update version of March 22, 2007)
2007.03.16 (BF)Error correction when map projection method is PS (Polar Stereo).
2007.03.15 (BF)Error in starting generation of some geocoded products corrected.
(BF)Error correction in procesing scenes with line loss(es).
2007.03.06 (CS)Filter processing program added. (for PRISM)
2007.03.05 (BF)Anomalies chipped-like image observed on the right edge in some scenes corrected.
(BF)Error checking process in attitude data extraction corrected.
2007.02.28 (CP) Parameters of geometric model changed.
Changed Parameters : Relative alignment among CCD elements, CCDinstallation misalignment
2007.02.21 (CP) PRISM Pointing alignment parameters updated (Update version of February 20, 2007)
2007.02.01 (CP) PRISM Pointing alignment parameters updated (Update version of January 31, 2007)
2006.12.13 (BF) Corrected anomalies in processing data when more than two times of pointing change are encountered in telemetry.
2006.11.29 (BF) Anomalies in handling time data in the case of line losses corrected.
2006.11.13 (BF) 0.5 misaligned line for computing scene center time corrected.
(BF) Anomalies in re-processing without DEM correction in DEM correction options corrected.
(BF) Inconsistent memory release to create radiometric correction information corrected.
(CP) PRISM Pointing alignment parameters updated (Update version of Oct.8, 2006)
2006.10.24  - 
BF:Bug Fix, CP:Change Parameter, CS:Change Specification

AVNIR-2 Data Processing Software

Release
Date
Remarks
2011.02.17 (CP)Parameters of geometric model changed.
Changed Parameters : Sensor alignment
2010.04.26 (CP)Parameters of geometric model changed.
Changed Parameters : Sensor alignment
2008.10.22 (CP)Table of the Geometric correction updated.
2008.07.04 (BF)Corrected an anomaly involved when predictive orbital information is applied to process the data crossing a boundary of dates.
2008.05.09 (CP)Table of the radiometric correction updated.
2008.04.01 (BF)Corrected an anomaly involved when only predictive orbital information is applied to a period crossing a boundary of dates.
(BF)The unit of length applied to ALOS Conventional Orbit Data(Predictive) in AVNIR-2 Leader file "ancillary 3" is consistently set to meters even when this type of data do solely exist.
2007.04.16 (CP)Cloud Coverage Information Parameter was updated.
2007.04.04 (BF)Comparison processing trouble correction in frame first time and cutting out start time when linegeneration process.
2007.03.28 (CP)Cloud/ice evaluation coefficients was updated.
2007.03.16 (BF)Error correction when map projection method is PS (Polar Stereo).
2007.03.05 (BF)Error checking process in attitude data extraction corrected.
2006.12.07 (CP) Parameters of geometric model changed
Changed Parameters : Coordination conversion rotation angle, Setting error (rotation)
2006.11.29 (BF) Anomalies in handling time data in the case of line losses corrected.
2006.11.13 (BF) 0.5 misaligned line for computing scene center time corrected.
(BF) Scene anomalies by DEM correction options corrected.
(CP) AVNIR-2 alignment angles (θx,θy,θz) updated.
   (0,0,0) -> estimated values prior to launch
2006.10.24  - 
BF:Bug Fix, CP:Change Parameter, CS:Change Specification

PALSAR Level 1.0 Data Processing Software

Release
Date
Remarks
2012.03.23 (BF) Updated to avoid abortion of the processing when some of the observed data are defective.
2012.03.15 (BF) Updated to avoid abortion of the processing when some of the observed data are defective.
2010.09.07 (BF) Corrected an abnormal termination when the data with some data losses are processed.
2009.09.29 (BF) Implemented algorithm to avoid fatal influence of an abnormal sync code on L1.0 processing.
2008.07.11 (BF) Corrected an anomaly to show "No applicable record" when part of mission telemetry level 0 data are missing outside of the observation data to be processed.
2008.05.21 (BF) The L1.0 processor failed when its workorder specifies only one Conventional Orbit Data while the processor is forced to use it because no Precision Orbit Data exists.
2008.03.28 (BF)"Scene not-found error" fixed.
2007.04.16 (BF) Time change for judging the correction of satellite time 1 second delay
- Use the scene start time (before modification)
- Use the scene center time (after modification)
2007.03.29 (BF) Handling of check miss when user is specified LCC Southern Hemisphere of WB1
(BF) Handling of the lack of consideration if longitude exceeds over 180 degree at L1.5 processing
2007.02.26 (BF) Anomalies involved in storing Platform Position Data Record and/or Facility Related Data Records fixed.
2006.10.24  - 
BF:Bug Fix, CP:Change Parameter, CS:Change Specification

PALSAR Core Processing Software

Release
Date
Remarks
2013.01.21 (BF) Corrected an anomaly image ocurred from the observation mode of yawsteering off and PRF change.
2010.08.31 (BF) Corrected an anomaly in the product of FBS and FBD after PRF (Pulse Repetition Frequency) changes.
2010.07.27 (CS) Corrected a difference in brightness for the Level1.1 products of consecutive scenes.
2009.09.16 (CS) Modification of parameters used to obtain PALSAR antenna pattern values updated.[FSB, FBD/off-nadir angle:43.3degrees, PLR/off-nadir angle:20.5degrees]
2009.07.22 (BF) Corrected an anomaly in checking the validity of latitude range for map projection of browse images.
2009.07.13 (CS)Modification of parameters used to obtain PALSAR antenna pattern values and PALSAR Calibration Factor updated.
PALSAR antenna pattern values:[FBD/off-nadir angle:30.8 and 38.8 degrees]
PALSAR Calibration Factor:[FBD/off-nadir angle:30.8 and 38.8 degrees, PLR/off-nadir angle:19.2 and 25.2 degrees]
2009.04.01 (CP) Doppler center frequency estimation program updated.
(CP) Resolution of browse images improved.
2009.01.09 (BF) Doppler center frequency estimation program tuned.
(BF) Unwanted shift of PALSAR images caused by neglecting of the leap second inserted at the end of the year 2008 removed properly.
(CS)PALSAR calibration coefficients updated.
2008.07.29 (CS) Modification of calculation method and parameters used to obtain ScanSAR antenna pattern values.
2008.04.08 (BF) Corrected an anomaly in checking the validity of latitude range for PS mapping.
2008.03.21 (BF) Corrected an anomaly in the image mapping of a scene across the longitude of 180 degrees.
2007.12.13 (CS) Record length of Leader File and 11th Facility Related Data Record extended and Conversion coefficient of Lat/Long ? Pixel/Line added.
ALOS Product Format Guide
(CS) The coordinates of the 1st, middle and final pixels added into the image file of Processed Data Record.
2007.10.31 (BF) Noises in PALSAR images corrected.
2007.10.12 (BF) Corrected an anomaly of geometric adjustment, which made some images of WB1/WB2 distorted.
2007.09.21 (BF) Error in geometric correction corrected. (PALSAR WB1 or WB2 level1.5 products)
2007.07.23 (CS) Change of product size (reduction of range samples).
(BF) Error in geometric correction corrected (Latitude/longitude calculation error about some products).
2007.06.05 (CP) Doppler center frequency estimation program updated.
(BF)Error in map projection process corrected.
2007.04.23 (BF) Error in compression processig corrected.
2007.02.06 (BF) Anomalies in WB1 (a white line along the edge of scenes) corrected.
(BF) PLR processing failure observed at the start/end of a day corrected.
2006.10.24  - 
BF:Bug Fix, CP:Change Parameter, CS:Change Specification
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