All,

   The apogee pass was nominal for CMD and TLM. The inertial maneuver was successful. We did have another star tracker reset. I executed CAR 344 to clear all errors. The tracker recovered nominally and was at 80% during the contact. The BUS ATS for orbit 491 was uplinked and the current command count is at 216.

TASKS accomplished:

CAR 344 – Reset FDC Totals and Response latch values

CAR 2000 – ATS upload – IBEX_2020_167_o0491a_BUS_V001 48 cmds

Results from the inertial maneuver:

Q1 -0.53407900 ActNor.EstInrToBdy[0]

Q2 -0.20434900 ActNor.EstInrToBdy[1]

Q3 -0.65140300 ActNor.EstInrToBdy[2]

Q4 0.49867300 ActNor.EstInrToBdy[3]

GPS sec 1274357266 ActNor.EstTime

UTC time 05/24/2020 12:07:32 output

MPS Diff 0.641 deg

MPS Cmd Vector X 0.487235000

MPS Cmd Vector Y 0.805187000

MPS Cmd Vector Z 0.338048000

CSS Angle TLM 0.745723

CSS Sun-Pointing Angle 1.491446

  19 May 20 @23:30

CSS Angle TLM 0.5203

CSS Sun-Pointing Angle 1.0406

  24 May 20 @12:00

Pre-Burn

Thruster 1 9440 19 May 20 @23:30

Thruster 2 9168

Thruster 3 12064

Thruster 4 12336

Post-Burn

Thruster 1 9712 24 May 20 @12:00

Thruster 2 9440

Thruster 3 12352

Thruster 4 12624

Number of Pulses

Thruster 1 272

Thruster 2 272

Thruster 3 288

Thruster 4 288

Thruster Pairs 

Thruster 1 & 2 544

Thruster 3 & 4 576

Timothy E.Perry

CRS IBEX OCO-2

Mission Operations

timothy.perry@ngc.com

Office (703) 406-5976

Cell (301) 606-1430