All,

   Attached are the planning files for Orbit #511

Since we were all off for thanksgiving. I think we can take our time and have the approvals ready for the perigee passes during orbit 509.

Please respond to this thread with comments and approvals.  

Approvals are required by COB on 05 December 2020

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.

2. 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.  

3. 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.

4. No Battery Balancing this orbit

5. APOGEE: Sun Maneuver -  $TIME=2020/12:20:01:41:59

6. Orbit# 509 Reset Master Timer  - 2020/12:07:03:15:00

7. Command Load Constraint Violation Report (CCVR)

IBEX_2020_350_o0511a_v001.ccvr

The soft constraint “IBX-CLC-015” is acceptable. MPS uses a history file to calculate power usage. This message is from the solar eclipse during perigee on orbit 510.

#

# Input files:         1

#   IBEX_2020_350_o0511a_v001.scr

==========================

HARD CONSTRAINT VIOLATIONS

==========================

NO VIOLATIONS.

==========================

SOFT CONSTRAINT VIOLATIONS

==========================

IBX-CLC-015: Battery charge falls below minimum from 2020/12/15 14:00:41 UTC -

             2020/12/15 15:07:41 UTC. Lowest charge level is 6094.046263

             watt-minutes during this interval.

IBX-CLC-016: No command to enable spin pulse protection was found after

             transition to science mode at 2020/12/15 23:34:47 UTC

IBX-CLC-016: No command to enable spin pulse protection was found after

             transition to science mode at 2020/12/20 02:57:05 UTC

==============

OTHER MESSAGES

==============

NO MESSAGES.

Timothy E.Perry

CRS IBEX OCO-2

Mission Operations

timothy.perry@ngc.com

Office (703) 406-5976

Cell (301) 606-1430