All,

   The spacecraft is nominal and the sun maneuver was successful. The static Z value was set to 4.172. The star tracker had a reset in the back orbit. I executed CAR #344 and reset all star tracker flags and FDC totals. The star tracker is operating nominally and star percent valid is currently at 78%.

Tasks performed:

Set Static Z rate

CAR 344 – Reset FDC and Response Latch Values

Results for the Sun Maneuver:

CSS Angle TLM 0.823057

CSS Sun-Pointing Angle 1.646114

  06 Feb 22 @ 23:30:00

CSS Angle TLM 1.86834

CSS Sun-Pointing Angle 3.73668

  13 Feb 22 @ 18:30:00

Pre-Burn

Thruster 1 16528 06 Feb 22 @ 23:30:00

Thruster 2 16064

Thruster 3 20432

Thruster 4 20896

Post-Burn

Thruster 1 16624 13 Feb 22 @ 18:30:00

Thruster 2 16160

Thruster 3 20768

Thruster 4 21232

Number of Pulses

Thruster 1 96

Thruster 2 96

Thruster 3 336

Thruster 4 336

Thruster Pairs 

Thruster 1 & 2 192

Thruster 3 & 4 672

Timothy E.Perry

CRS IBEX OCO-2

Mission Operations

timothy.perry@ngc.com

Office (703) 406-5976

Cell (301) 606-1430