All,

    Tonight, we had an issue with the spacecraft. At AOS we noted that the Hmlogs for the BCR and Flight Computer were steadily incrementing. We also noted that the Thrust time out counter had not reset to zero. We reset the counter to zero and were able to dump the flight computer back orbit data. The plan for tomorrow is to reset the BCR first and if that clears the issue than we are back to routine operations. I f we need to reset the Flight computer, then we will have to safe the instrument and proceed with the reset. I have 2 contacts scheduled for the recovery and one for the initial resets.  

Here are the contacts I have scheduled for tomorrows planned operations

IBEX,USHI01,ADD,11/18/24,323,20:05:00,11/18/24,323,21:05:00,LAHO 2K IBEX-3 Orbit# 668 BCR reset Contact 46re Desc Blind Acq

IBEX,USHI01,ADD,11/18/24,323,22:30:00,11/19/24,324,00:30:00,LAHO 2K BEX-3 Orbit# 668 FC reset/ Recovery Contact 46re Desc Blind Acq

IBEX,USHI01,ADD,11/19/24,324,01:30:00,11/19/24,324,02:30:00,LAHO 2K BEX-3 Orbit# 668 FC reset/ Recovery Contact 46re Desc Blind Acq

Results from the sun Maneuver.  

CSS Angle TLM 0.181794

CSS Sun-Pointing Angle 0.363588

  12 Nov 24 @17:00:00

CSS Angle TLM 1.873

CSS Sun-Pointing Angle 3.746

  17 Nov 24 @21:00:00

Pre-Burn

Thruster 1 8912 12 Nov 24 @17:00:00

Thruster 2 8704

Thruster 3 10736

Thruster 4 10944

Post-Burn

Thruster 1 9312 17 Nov 24 @21:00:00

Thruster 2 9056

Thruster 3 11296

Thruster 4 11552

Number of Pulses

Thruster 1 400

Thruster 2 352

Thruster 3 560

Thruster 4 608

Thruster Pairs  

Thruster 1 & 2 752

Thruster 3 & 4 1168

Timothy E.Perry

CRS IBEX OCO-2

Mission Operations

timothy.perry@ngc.com

Office (703) 406-5976

IBEX MOC (703)404-7470

Cell (301) 606-1430