All,

    The first contact AUWA01 that was planned for April 11 @ 01:00gmt was canceled due to Cyclone Seroja and tropical low near Western Australia. Station was shutdown shut down on April 11 @00:00 gmt. The following Network Advisory Message was issued “Nam #4948 Adverse Weather Conditions at Australia Dongara (April 11-12, 2021)”. The station was still down this morning.

    The second contact USAK01 planned for April 12 @1200, we had an issue with the INP2 file. Prior to the contact SSC noted the available file IBEX_2021_100_00_00_.inp2 only contained angles up to DOY102 @09:17:58. Marissa was able to create another INP2 file and send it out to SSC prior to the contact. The contact was successful. We were able to dump the SSR, upload Orbit #525 ATS’s, verify the 18 timer reset as scheduled and verify the inertial maneuver was successful.

Tasks Accomplished

CAR #1161 Orbit #525 ATS Uplink

  IBEX_2021_111_o0525a_BUS_v001

  IBEX_2021_111_o0525a_INST_v001

SSR Dump _> Dump New

Results from the Inertial Maneuver:

Q1 -0.49706600 ActNor.EstInrToBdy[0]

Q2 0.43121500 ActNor.EstInrToBdy[1]

Q3 -0.38568700 ActNor.EstInrToBdy[2]

Q4 0.64670300 ActNor.EstInrToBdy[3]

GPS sec 1302265224 ActNor.EstTime

UTC time 04/12/2021 12:20:10 output

MPS Cmd Vector X 0.940256000

MPS Cmd Vector Y 0.315847000

MPS Cmd Vector Z 0.127117000

MPS Diff 0.510 deg

CSS Angle TLM 0.662934

CSS Sun-Pointing Angle 1.325868

07 Apr 21 @ 13:00:00

CSS Angle TLM 0.411645

CSS Sun-Pointing Angle 0.82329

12 Apr 21 @ 12:00:00

Pre-Burn

Thruster 1 4960 07 Apr 21 @ 13:00:00

Thruster 2 4800

Thruster 3 6576

Thruster 4 6736

Post-Burn

Thruster 1 5232 12 Apr 21 @ 12:00:00

Thruster 2 5072

Thruster 3 6896

Thruster 4 7056

Number of Pulses

Thruster 1 272

Thruster 2 272

Thruster 3 320

Thruster 4 320

Thruster Pairs

Thruster 1 & 2 544

Thruster 3 & 4 640

Timothy E.Perry

CRS IBEX OCO-2

Mission Operations

timothy.perry@ngc.com

Office (703) 406-5976

Cell (301) 606-1430