[Isocops] IBEX Orbit #517 ATS Approval (7 – 16 Feb 21)

Thu Jan 21 12:26:53 EST 2021

All,
   Attached are the planning files for Orbit #517
Please respond to this thread with comments and approvals.
Approvals are required by COB on 28 January 2021

Please note the following:

  1.  I generated 3 separate ATS files BUS, INST and a complete file. The BUS and INST will be the files to be uplinked. The complete ATS, I used as a sanity check to see how the commands lined up. Since we are in a new phase of ATS generation. IF you have any ideas of doing this differently, let me know.

  1.  The 3 ATS files have been changed to word files and encrypted. I will send out another email with the password. The files that have been transferred via MFT have not been encrypted and are still text files.

  1.  I moved the 2 House Keeping commands from the INST ATS to the BUS ATS. I commented out the 2 commands in the INST ATS. If for some reason we were unable to uplink the INST Commands for this orbit, we would have been in the wrong spacecraft state for executing the maneuver commands.

  1.  Apogee Sun Maneuver - 2021/02:11:21:13:43

  1.  No Battery Balancing this orbit

6.       # Orbit# 515 Master Timer Reset - 2021/01:29:02:15:00

7.       Command Load Constraint Violation Report (CCVR)
The 2 IBX-CLC-006 Soft constraint violations are acceptable. The reason for the violations is that the 2 contacts are separated by 1 hour.
IBEX,AUWA01,ADD,02/16/21,047,13:00:00,02/16/21,047,14:30:00,LAHO 160K IBEX-2 Orbit# 517 Star Tracker Dump/Tracking Contact 14 Per Asc
IBEX,AUWA01,ADD,02/16/21,047,15:30:00,02/16/21,047,16:30:00,LAHO 160K IBEX-2 Orbit# 517 SSR_Dump/Tracking Contact 14.5 Asc
==========================
HARD CONSTRAINT VIOLATIONS
==========================
NO VIOLATIONS.

==========================
SOFT CONSTRAINT VIOLATIONS
==========================
IBX-CLC-006: Planned transmission at 2021/02/16 12:58:00 UTC - 2021/02/16
             14:32:00 UTC exceeds the maximum contiguous transmission time of
             5400 seconds
IBX-CLC-006: Planned transmission at 2021/02/16 15:28:00 UTC - 2021/02/16
             16:32:00 UTC is preceded by one or more additional transmissions
             which, when combined, exceed the maximum transmission time of 5400
             seconds within a 18000-second window (total planned transmission
             time this window is 9480.000 seconds)
IBX-CLC-016: No command to enable spin pulse protection was found after
             transition to science mode at 2021/02/07 17:18:48 UTC
IBX-CLC-016: No command to enable spin pulse protection was found after
             transition to science mode at 2021/02/11 22:30:11 UTC

==============
OTHER MESSAGES
==============
NO MESSAGES.

Timothy E.Perry
CRS IBEX OCO-2
Mission Operations
timothy.perry at ngc.com
Office (703) 406-5976
Cell (301) 606-1430

[cid:image001.png at 01D542D6.6047A400]

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