All,

   The perigee contacts were nominal for CMD & TLM. The inertial maneuver was successful. Both SSR and Flight computer back orbit data was dumped. The spacecraft clock was updated. The ATS’s for orbit# 521 were uplinked. The 18 Day timer reset nominally and the timed command count @ LOS was 199.

Tasks Accomplished:

SSR Dump-> Dump New

Flight Computer Back Orbit data dumped

CAR # 1154 Orbit 521 ATS uplink

  IBEX_2021_074_o0521a_BUS_V001 60 cmds

  IBEX_2021_074_o0521a_INST_V001 46 cmds

Set Spacecraft Clock

Reset FDC Totals.

Results from the Inertial Maneuver:

Q1 0.38891000 ActNor.EstInrToBdy[0]

Q2 0.62655900 ActNor.EstInrToBdy[1]

Q3 0.22957900 ActNor.EstInrToBdy[2]

Q4 0.63519000 ActNor.EstInrToBdy[3]

GPS sec 1299063753 ActNor.EstTime

UTC time 03/06/2021 11:02:19 output

MPS Diff 0.677 deg

MPS Cmd Vector X 0.974523000

MPS Cmd Vector Y -0.201548000

MPS Cmd Vector Z -0.098399000

CSS Angle TLM 0.55671

CSS Sun-Pointing Angle 1.11342

  4 Mar 21 @ 19:00:00

CSS Angle TLM 0.95121

CSS Sun-Pointing Angle 1.90242

  6 Mar 21 @ 11:00:00

Pre-Burn

Thruster 1 2928 4 Mar 21 @ 19:00:00

Thruster 2 2800

Thruster 3 4256

Thruster 4 4384

Post-Burn

Thruster 1 3248 6 Mar 21 @ 11:00:00

Thruster 2 3120

Thruster 3 4640

Thruster 4 4768

Number of Pulses

Thruster 1 320

Thruster 2 320

Thruster 3 384

Thruster 4 384

Thruster Pairs 

Thruster 1 & 2 640

Thruster 3 & 4 768

Timothy E.Perry

CRS IBEX OCO-2

Mission Operations

timothy.perry@ngc.com

Office (703) 406-5976

Cell (301) 606-1430