= Block 12 - Install new PCK/TPC =


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== Description ==

New planetary constants, or an update RA and DEC of Bennu pole, rotation rate, etc.

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== Procedure ==

 * Capture state of system by running RESIDUALS and make a copy somewhere for comparison
 * Update INIT_LITHOS.TXT and make_sumfiles.txt with new PCK/TPC
 * Run MAKE_SUMFILES Option 1 to update the NOMINALS
 * Capture state of system by running RESIDUALS again... did the s/c move the amount you would expect?
 * Make sure the sigmas in NOMINALS are small so that the next step brings the SUMFILES close to the NOMIALS (if the s/c didn't move much in the previous step you can probably skip this step and the next)
 * GEOMETRY 20-15-n-n
 * Run DYNAMICS to set the sigmas to their proper value
 * Run GEOMETRY 20-15-n-n again
 * Iterate

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''(Compiled by JW)''