All,

    The perigee contacts were nominal for CMD & TLM. The Sun maneuver was successful. The SSR and FC Back Orbit buffer was dumped. The 2 ATS’s for Orbit # 520 were uplinked. The 18 Day timer command executed nominally and the timer is back to 10. The Number of timed commands on board at LOS was 180.

Tasks Accomplished:

CAR # 1153 STA Upload for Orbit # 520

  IBEX_2021_065_o0520a_BUS_V002 48 Cmds

  IBEX_2021_065_o0520a_INST_V002 46 Cmds

Flight Computer Back Orbit buffer dump

SSR Dump -> Dump New

Results from the Sun Maneuver:

CSS Angle TLM 0.695247

CSS Sun-Pointing Angle 1.390494

  23 Feb 21 @ 20:00:00

CSS Angle TLM 1.6957

CSS Sun-Pointing Angle 3.3914

  25 Feb 21 @ 19:00:00

Pre-Burn

Thruster 1 2512 23 Feb 21 @ 20:00:00

Thruster 2 2432

Thruster 3 3456

Thruster 4 3536

Post-Burn

Thruster 1 2656 25 Feb 21 @ 19:00:00

Thruster 2 2576

Thruster 3 3760

Thruster 4 3840

Number of Pulses

Thruster 1 144

Thruster 2 144

Thruster 3 304

Thruster 4 304

Thruster Pairs 

Thruster 1 & 2 288

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