Custom Query (432 matches)
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Ticket | Resolution | Summary | Owner | Reporter |
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#133 | fixed | FODIS processing appears incorrect | mggr | mggr |
Description |
With the recent acquisitions of the first FODIS data, we attempted to process some using azspec and appear to have a problem. By comparison with the solar spectrum (http://fsf.nerc.ac.uk/img/g37_grph.gif) and a Caligeo processing of the same line, there is a clear discrepancy. Image below shows a worst case selection of the azspec FODIS output. relevant part of processing log: azspec -- ver: 1.1.7 Apr 3 2008 (C) Azimuth Systems UK 2005, 2007 Raw file header: eagle/VNIRsecloudtest-1.hdr Raw file : eagle/VNIRsecloudtest-1.raw Dark frames at end of image file, 152 frames starting at: 3932 Image lines corrected from: 4083 to 3931 Using Tr multiplier from spectral binning[2]: 1.00 fsmscale is now: 0.000100 Tr: 0.002000 integ: 20.0 Optics from basic details and binning port fov: 16.129 full fov: 34.688 corr oa: 512.00 scpixels: 953 image file frame count start: 60092 end: 64047 total lines: 3955 file lines: 3931 Dark frames at end of raw file: 152 darks to be used: 50 Dark frames used: 49.0 scale: 0.02041 Radcal file header: calibration/eagle/SN100022_130207_XB.hdr Radcal file : calibration/eagle/SN100022_130207_XB.cal Config file : calibration/eagle/SN100022_130207_XB.cfg Using HDF file: lev1/eJJJ011b_gpt0.0.hdf HDFStart fov: 34.7 fovp: 16.1 scpixels: 953 New BIL bands: 252 pix: 953 lines: 3955 HDF image data: CAimage bands: 252 pixels: 953 lines: 3955 FODIS (ILS) bands: 252 pixels: 1 lines: 3955 2 frame(s) missing from: 60094 to 60097 line: 2 cline: 3 2 frame(s) missing from: 60098 to 60101 line: 6 cline: 5 2 frame(s) missing from: 60102 to 60105 line: 10 cline: 7 1 frame(s) missing from: 60112 to 60114 line: 20 cline: 15 1 frame(s) missing from: 60115 to 60117 line: 23 cline: 17 3 frame(s) missing from: 60118 to 60122 line: 26 cline: 19 2 frame(s) missing from: 60126 to 60129 line: 34 cline: 24 1 frame(s) missing from: 60130 to 60132 line: 38 cline: 26 2 frame(s) missing from: 60133 to 60136 line: 41 cline: 28 2 frame(s) missing from: 60138 to 60141 line: 46 cline: 31 2 frame(s) missing from: 60142 to 60145 line: 50 cline: 33 2 frame(s) missing from: 60146 to 60149 line: 54 cline: 35 1 frame(s) missing from: 60157 to 60159 line: 65 cline: 44 2 frame(s) missing from: 60964 to 60967 line: 872 cline: 850 **FrameProcess - HDF write error for ILS line: 3955 SpecNavProc gotsync: 0 synclater: 1 Nav syncstart from image file header of: 49107.62500 gps secs of day sync entries set for later use start frame: 0 end: 3954 start frame time: 49107.624900 frame time increment: 0.033333 secs writing new NAV vgroup Processing summary... data from : AISA HS Instrument, SW ver 2.800 sensor ID : 100022 lens FOV : 34.69 degs raw file : eagle/VNIRsecloudtest-1.raw BIL lines : 3931 available acq date : 31/01/2008 day: 31 rec times : start: 13:38:27.62 end: 13:40:45.19 binning : 2 spectral 1 spatial integration : 20.00 msecs frame rate : 30.00 fps radiance sc : 1000.000 HDF file : lev1/eJJJ011b_gpt0.0.hdf Image data : pix: 72 to 1024 saved to HDF-SDS item: CAimage FODIS (ILS) : pix: 28 to 32 saved to HDF-SDS item: CAils pixels : 1024 bands : 252 re-ordered blue to red image lines : 3955 frameIDs at line (0): 60092 and line (3954): 64047 Processing applied... frame shift smear correction, line shift scale: 0.00010 dark frame subtraction, lines averaged: 50 dark frames from raw file radiometric calibration using file: calibration/eagle/SN100022_130207_XB.cal ** total pixels overflowed after calibration: 556 FODIS averaged ** no FODIS ratio applied Processing times : calibration: 64.2 total: 237.6 secs halting after azspec (no need to do the rest) Sent a copy of the Caligeo and azspec processed files, the raw data and the script to Bill, with a brief explanatory note. |
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#144 | wontfix | Incorporate EGM96 geoid code into azgcorr | mggr | mggr |
Description |
Incorporate EGM96 geoid code into azgcorr, eliminating the need for geoid-spheroid separation files (Bill estimates ~3 days effort) |
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#145 | fixed | Wider scale geoid spheroid file needed | benj | mggr |
Description |
A geoid-spheroid file is required for processing with a DEM based on the geoid. For UK flights, we use osgb02.cgrf, which is a high accuracy description as recommended by the OS. The other files we have in ~arsf/dems/geoid-spheroid are: igg2005.grd (Portuguese grid?) and sphseplx.grd (European region). Both are apparently a 7.5min grid. To process Ethiopia (and IPY and other) data, using SRTM DEMs, we need a larger grid. This ticket is somewhat belated - the issue was raised during Bill's visit to PML in March, but pushed recently as we started to work on Ethiopia data. |