All,

The Perigee passes were nominal for CMD and TLM and the inertial maneuver was successful. We dumped the SSR and set the read and write pointers to 70000. Between the 2 passes, the Star Tracker went thru an autonomous reset. The time of the reset was Feb 10 @21:26:55z. During the second pass I reset the latch values and FDC totals (CAR #1023).

The following was also accomplished during the perigee passes:

Reset the master timer

Reset FDC totals

CAR 1022 ATS upload – IBEX_2019_051_o0438a_v001 93 cmds

Dumped the Flight Computer Back Orbit data

Results from the Inertial maneuver:

Q1 0.19644700 ActNor.EstInrToBdy[0]

Q2 0.76178900 ActNor.EstInrToBdy[1]

Q3 -0.21797900 ActNor.EstInrToBdy[2]

Q4 0.57755600 ActNor.EstInrToBdy[3]

GPS sec 1233835519.000 ActNor.EstTime

MPS Diff 0.826 deg

MPS Cmd Vector X 0.794949000

MPS Cmd Vector Y -0.552484000

MPS Cmd Vector Z -0.250633000

CSS Angle TLM 0.43924

CSS Sun-Pointing Angle 0.87848

5 Feb 19 @20:00

CSS Angle TLM 1.80353

CSS Sun-Pointing Angle 3.60706

10 Feb 19 @12:00

Pre-Burn

Thruster 1 5696 5 Feb 19 @20:00

Thruster 2 5552

Thruster 3 6720

Thruster 4 6864

Post-Burn

Thruster 1 5984 10 Feb 19 @12:00

Thruster 2 5840

Thruster 3 7040

Thruster 4 7184

Number of Pulses

Thruster 1 288

Thruster 2 288

Thruster 3 320

Thruster 4 320

Thruster Pairs

Thruster 1 & 2 576

Thruster 3 & 4 640

Timothy E. Perry

Mission Operations

CRS, IBEX, OCO-2 & TESS

RAPTOR Test Team

timothy.perry@ngc.com

Office (703) 406-5976

Cell (301) 606-1430

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