[Isocops] IBEX Goat Herder Oct 28 -29, 2022

Sat Oct 29 08:22:30 EDT 2022

All,

    The first perigee contact for Orbit# 585 was nominal and the inertial maneuver was successful.

    The SSR_Dump  contact with USAK01 was a failure. At AOS, we did not see downlink and tried to command to a lower downlink data rate with no success.

We then tried to blind acq the spacecraft @160k with no success and tried again to command the downlink to 2k & to 40k with no success.

The contact was ended early and a scheduled Blind_Acq contact with HAW01 @1045z was successful to monitor the health of the spacecraft.

Tasks Accomplished:

CAR # 1275  Orbit 587 ATS Upload

   IBEX_2022_311_o0587a_v001 93 cmds

Dump Backorbit data

Reset FDC totals

Reset 18 Day Timer

Blind_acq.scr

Results from the Inertial Maneuver:

Q1          -0.56096800        ActNor.EstInrToBdy[0]

Q2          -0.53963000        ActNor.EstInrToBdy[1]

Q3          0.61039700          ActNor.EstInrToBdy[2]

Q4          0.14673100          ActNor.EstInrToBdy[3]

GPS sec                1351020724         ActNor.EstTime

UTC time             10/28/2022 19:31:50        output

MPS Diff  0.699  deg

MPS Cmd Vector X          -0.840662000

MPS Cmd Vector Y          -0.493233000

MPS Cmd Vector Z          -0.223624000

CSS Angle TLM  0.358274

CSS Sun-Pointing Angle 0.716548

                                27 Oct 22 @02:30:00

CSS Angle TLM  0.218503

CSS Sun-Pointing Angle 0.437006

                                28 Oct 22 @18:32:00

Pre-Burn

Thruster 1           7936       27 Oct 22 @02:30:00

Thruster 2           7696

Thruster 3           10096

Thruster 4           10336

Post-Burn

Thruster 1           8064       28 Oct 22 @18:32:00

Thruster 2           7824

Thruster 3           10224

Thruster 4           10464

Number of Pulses

Thruster 1           128

Thruster 2           128

Thruster 3           128

Thruster 4           128

Thruster Pairs

Thruster 1 & 2    256

Thruster 3 & 4    256

Best Regards,

Sheral Wesley  |  Sr Principal Engineer, Satellite Systems

Northrop Grumman Corporation  |  Space Systems

O: 703-406-5641  |  C: 202-236-0802  |  sheral.wesley at ngc.com<mailto:sheral.wesley at ngc.com>

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