All,
    the perigee contacts were nominal for CMD and TLM. The Inertial maneuver was successful. The spacecraft went through an ACE reset in the back orbit. The KF input was set to GND_CMD and the static z rate was set to 4.15. I executed CAR #1005 ACE Reset Recovery. The ACS FDC was re-enabled and static Z rate was set to 4.173. Also, the KF input was commanded back to STA_PCT_Valid. Star tracker is currently @76%. Time of the reset was 27 April 21 @18:49:00.  The 18 day timer command executed nominally and the timer was set to 10 as expected.

Tasks Accomplished:

CAR# 1167 Dump Orbit 525 Blocks before the Flight computer reset.

CAR # 1166 Orbit #527 ATS upload

    IBEX_2021_129_o0527a_INST_v001.scr 46 Cmds

    IBEX_2021_129_o0527a_BUS_v001.scr 55 Cmds

CAR #1004 ACE Reset Recovery

Results from the Inertial Maneuver:

Q1 -0.37513200 ActNor.EstInrToBdy[0]

Q2 0.48651300 ActNor.EstInrToBdy[1]

Q3 -0.03166560 ActNor.EstInrToBdy[2]

Q4 0.78840200 ActNor.EstInrToBdy[3]

GPS sec 1303862450 ActNor.EstTime

UTC time 05/01/2021 00:00:36 output

MPS Diff 0.668 deg

MPS Cmd Vector X 0.788422000

MPS Cmd Vector Y 0.567896000

MPS Cmd Vector Z 0.236397000

CSS Angle TLM 0.660508

CSS Sun-Pointing Angle 1.321016

  01Apr 21 @ 00:00:00

Pre-Burn

Thruster 1 0

Thruster 2 0

Thruster 3 0

Thruster 4 0

Post-Burn

Thruster 1 272 01Apr 21 @ 00:00:00

Thruster 2 272

Thruster 3 304

Thruster 4 304

Number of Pulses

Thruster 1 272

Thruster 2 272

Thruster 3 304

Thruster 4 304

Thruster Pairs 

Thruster 1 & 2 544

Thruster 3 & 4 608

Timothy E.Perry

CRS IBEX OCO-2

Mission Operations

timothy.perry@ngc.com

Office (703) 406-5976

Cell (301) 606-1430