[Isocops] IBEX Goat Herder for 24 & 25 March 2021

[Perry, Timothy E [US] (SP)]

All,

   The perigee contacts were nominal for CMD and TLM. The Auwa01 24 March21 at 07:00 had a fluctuating Receive AGC. Because of that we dropped 2 commands from the Orbit 523 Instrument ATS. Those commands were resent during the USHI02 contact 25 March 21 @04:00. We were able to complete pass 8 of CAR #1119 ISN Season and Hi background sweep tables. The Hi normal sweep table was uplinked successfully. Ran script Find_TG_Entry.scr 2x to verify a step in the contingency recovery procedure that is being developed. The inertial maneuver was successful. the 18 day master timer reset nominally and was back to 10. The total timed commands onboard at LOS was 180.



Tasks Accomplished:

Find_TG_Entry.scr 2x

Set Spacecraft Clock

CAR #1119 ISN Season and Hi background sweep tables - Pass 8 - Hi normal Sweep table

CAR #1157 Orbit 523 ATS upload:

    IBEX_2021_093_o0523a_BUS_V001 41 cmds

    IBEX_2021_093_o0523a_INST_V001 46 cmds

Set Spacecraft Clock

CAR # 1155 Redump Orbit #521 SSR missing blocks

Reset 2 Instrument commands for Orbit 523





Results from the Inertial maneuver:
Q1 0.11303900 ActNor.EstInrToBdy[0]
Q2 0.69274700 ActNor.EstInrToBdy[1]
Q3 0.13457900 ActNor.EstInrToBdy[2]
Q4 0.69943700 ActNor.EstInrToBdy[3]

GPS sec 1300681427 ActNor.EstTime

UTC time 03/25/2021 04:23:33 output
MPS Cmd Vector X 0.999417000
MPS Cmd Vector Y 0.033783000
MPS Cmd Vector Z 0.004869000
MPS Diff 0.643 deg
CSS Angle TLM 0.582491
CSS Sun-Pointing Angle 1.164982
  20 Mar 21 @ 13:00:00
CSS Angle TLM 0.918132
CSS Sun-Pointing Angle 1.836264
  25 Mar 21 @ 04:00:00
Pre-Burn
Thruster 1 3840 20 Mar 21 @ 13:00:00
Thruster 2 3712
Thruster 3 5328
Thruster 4 5456
Post-Burn
Thruster 1 4112 25 Mar 21 @ 04:00:00
Thruster 2 3984
Thruster 3 5664
Thruster 4 5792
Number of Pulses
Thruster 1 272

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

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