All,

   The perigee pass had command issues for the first 10 minutes of the pass. The station USHI01 was unable to bring up their command carrier. SSC decided to switch us over to the USHI02 station. We were able to get a command uplink and send commands to the spacecraft. During the pass FDC totals were reset. A DR is pending and the new Razor #I100-687.

Tasks Accomplished:

Reset FDC totals

Results from the Inertial Maneuver:

Q1 -0.60373600

Q2 -0.05523310

Q3 -0.65632700

Q4 0.44909500

GPS sec 1304337678

UTC time 05/06/2021 12:01:04

MPS Cmd Vector X 0.738961000

MPS Cmd Vector Y 0.622087000

MPS Cmd Vector Z 0.258735000

MPS Diff 0.594 deg

CSS Angle TLM 0.660508

CSS Sun-Pointing Angle 1.321016

01Apr 21 @ 00:00:00

CSS Angle TLM 0.874469

CSS Sun-Pointing Angle 1.748938

06Apr 21 @ 12:00:00

Pre-Burn

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

Thruster 2 272

Thruster 3 304

Thruster 4 304

Post-Burn

Thruster 1 544 06Apr 21 @ 12:00:00

Thruster 2 544

Thruster 3 608

Thruster 4 608

Number of Pulses

Thruster 1 272

Thruster 2 272

Thruster 3 304

Thruster 4 304

Timothy E.Perry

CRS IBEX OCO-2

Mission Operations

timothy.perry@ngc.com

Office (703) 406-5976

Cell (301) 606-1430