All,

   The perigee contacts were nominal and the inertial maneuver was successful. Orbit 608 ATS was uplinked, the SSR was dumped, but due to a poor down link we will have to redump this orbits data again on the next set of perigee contacts in 9 days.

   We tested 2 cars for increasing star tracker temp data and for the star tracker hot line database uplink. Both CAR’s were successful in validating the necessary commands, but the one exception was we did not update the star tracker hot line database this time. We will perform the database update at a later point in time.

 

Tasks Accomplished:

CAR # 1311 – Update Star Tracker suppressed Hotlines

CAR# 1312 – Verify different QID’s that provide Star Tracker data

CAR# 1314 – Orbit# 608 ATS Uplink

   IBEX_2023_136_o0608a_v001 103 Cmds

SSR Dump - > Dump New

Dump Flight Computer Back Orbit Data

Reset FDC Totals

Set Spacecraft Clock

 

 

Results from the Inertial Maneuver:

Q1 -0.59929200 ActNor.EstInrToBdy[0]

Q2 0.06773900 ActNor.EstInrToBdy[1]

Q3 -0.53624700 ActNor.EstInrToBdy[2]

Q4 0.59050800 ActNor.EstInrToBdy[3]

     

GPS sec 1367497894 ActNor.EstTime 

UTC time 05/07/2023 12:31:20 output

 

MPS Diff 0.364 deg

 

MPS Cmd Vector X 0.722412000

MPS Cmd Vector Y 0.637946000

MPS Cmd Vector Z 0.266734000

 

CSS Angle TLM 0.427

CSS Sun-Pointing Angle 0.854

  02 May 23@15:00:00

 

CSS Angle TLM 0.291412

CSS Sun-Pointing Angle 0.582824

  07 May 23@12:00:00

 

Pre-Burn   

Thruster 1 3664 02 May 23@15:00:00

Thruster 2 3584

Thruster 3 5072

Thruster 4 5152

 

Post-Burn  

Thruster 1 3968 07 May 23@12:00:00

Thruster 2 3888

Thruster 3 5408

Thruster 4 5488

 

Number of Pulses  

Thruster 1 304

Thruster 2 304

Thruster 3 336

Thruster 4 336

 

Thruster Pairs 

Thruster 1 & 2 608

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

 

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