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| This block additionally ingests images from FITS files into the SPC world. | This block additionally ingests images from FITS files into the SPC world. Basic steps 1. Copy FITS images * Make a list of images * Updated kernels * Run [[process_fits]] * Run [[make_sumfiles]] |
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| == Assumptions == * You have invoked a Bourne-Again Shell (bash) * You are a member of the group OREX\spc * You have set up a skeleton directory in the following format: {{{ |
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| Bennu/ DATA/ IMAGEFILES/ NOMINALS/ SUMFILES/ SHAPEFILES/ lsupport/ }}} |
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| === 1. Create the following file === | === Copy FITS images === Install a copy of the FITS images for each day into the NEW_IMAGES_YYYY_DDD location. |
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| vi lsupport/processScript.sh # Takes a list of image names and runs process_fits on them # Eric E. Palmer, 9 June 2015 file=$1 prefix="images" # symbolic link to source images list=`cat $file` for item in $list do echo "$prefix/$item" | process_fits done |
/path/ops/OSIRIS_REx/NEW_IMAGES_YYYY_DDD |
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| === 2. Running PROCESS_FITS to populate IMAGEFILES, PICTLIST.TXT, and make_sumfiles.in === | === Make a list of images === SPC can ingest images one at a time via [[process_fits]], but we prefer to run it in batch. If [[newpix.txt]] exists, then [[process_fits]] will use that as input. It will search through all directories in the form of ../OSIRIS_REx/NEW_IMAGES_YYY_DDD . For tracking purposes, we will name the list of images via data shortcut name and put it into lsupport. The shortcut name is the short hand for mission name (Ap, PS, OA, DS, OB, Re) and the sequence number of the images set, i.e. the first delivery is 1, the next is 2, etc. |
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| # Create a symbolic link to the location of the images -- this is a single line ln -s <Full pathname to directory containing images> images |
cd /path/ops/OSIRIS_REx/NEW_IMAGES_YYYY_DD D ls > ../newpix.Ap4 cd ../Approch150B.v1 mv ../newpix.Ap4 lsupport/ relink lsupport/newpix.Ap4 newpix.txt ls -l newpix.txt }}} |
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| # Build the list of images to process ls images/ > imgList |
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| # Run the script sh lsupport/processScript.sh imgList | tee output.txt |
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| # Store the results mkdir step1-1 mv output.txt imgList step1-1 rm images # get rid of the symbolic link |
=== Updated kernels === Typically, you will need to update the spacecraft (SPK or file extension bsp) and pointing (CK or file extension bc). It may be necessary to update the spacecraft leap second clock also (lsp). Finally, if you get a new POLE, the planetary constants kernel for Bennu needs to be updated (PCK or file extension tpc). * Remember that many spacecraft kernels have both a reconstructed past history and a future predicted plan. As such, if you forget to update the SPKs, you could have images that are ingested using the predicted part of an outdated kernel, which won't throw an error. * Remember that SPICE will load kernels in order and use the last loaded kernel for a given time, so the newest kernels should always be at the end of a list. 1. Edit [[make_sumfiles.txt]]. We want to use chmod to avoid mistakenly over writing such an important file. {{{ chmod u+w make_sumfiles.txt vi make_sumfiles.txt # add the new kernels chmod a-w make_sumfiles.txt |
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1. If the PCK has changed, update [[INIT_LITHOS.TXT]] also. === Run [[process_fits]] === === Run [[make_sumfiles]] === |
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| ''(Compiled by JRW)'' CategoryHowTos |
''(Compiled by EEP)'' |
Block 2 - Ingest V2
Description
This block additionally ingests images from FITS files into the SPC world.
Basic steps
- Copy FITS images
- Make a list of images
- Updated kernels
Run process_fits
Run make_sumfiles
Procedure
Copy FITS images
Install a copy of the FITS images for each day into the NEW_IMAGES_YYYY_DDD location.
/path/ops/OSIRIS_REx/NEW_IMAGES_YYYY_DDD
Make a list of images
SPC can ingest images one at a time via process_fits, but we prefer to run it in batch. If newpix.txt exists, then process_fits will use that as input. It will search through all directories in the form of ../OSIRIS_REx/NEW_IMAGES_YYY_DDD .
For tracking purposes, we will name the list of images via data shortcut name and put it into lsupport. The shortcut name is the short hand for mission name (Ap, PS, OA, DS, OB, Re) and the sequence number of the images set, i.e. the first delivery is 1, the next is 2, etc.
cd /path/ops/OSIRIS_REx/NEW_IMAGES_YYYY_DD D ls > ../newpix.Ap4 cd ../Approch150B.v1 mv ../newpix.Ap4 lsupport/ relink lsupport/newpix.Ap4 newpix.txt ls -l newpix.txt
Updated kernels
Typically, you will need to update the spacecraft (SPK or file extension bsp) and pointing (CK or file extension bc). It may be necessary to update the spacecraft leap second clock also (lsp). Finally, if you get a new POLE, the planetary constants kernel for Bennu needs to be updated (PCK or file extension tpc).
- Remember that many spacecraft kernels have both a reconstructed past history and a future predicted plan. As such, if you forget to update the SPKs, you could have images that are ingested using the predicted part of an outdated kernel, which won't throw an error.
- Remember that SPICE will load kernels in order and use the last loaded kernel for a given time, so the newest kernels should always be at the end of a list.
Edit make_sumfiles.txt. We want to use chmod to avoid mistakenly over writing such an important file.
chmod u+w make_sumfiles.txt vi make_sumfiles.txt # add the new kernels chmod a-w make_sumfiles.txt
If the PCK has changed, update INIT_LITHOS.TXT also.
Run [[process_fits]]
Run [[make_sumfiles]]
(Compiled by EEP)