[Isocops] IBEX Goat Herder for 22 Nov 2024

[Wesley, Sheral R [US] (SP)]

All,
The perigee contacts were nominal for command, but had intermittent telemetry during the 1st SSR data dump @0200z and had to decrease the telemetry rate to 160k. The 2nd contact was changed from HAW01 to AK01 @320k and extended in order to redump the SSR data from orbit# 668.

Objectives during the contacts

  1.  Reset master timer
  2.  CAR# 1426 Upload Orbit# 669 IBEX-Lo Gain test (23 Nov 23)
IBEX_2024_327_o0669a_v001-lgc (573-627)

  1.  CAR# 1425 Upload Orbit 669
IBEX_2024_327_o0669a_v001 (628-725)

  1.  CAR# 1430 Re-Dump Orbit# 668
ssr_dump      NBLOCKS  (Start  96870 Numblks  95860)

Results from the PERIGEE maneuver
Q1          -0.18792700      ActNor.EstInrToBdy[0]
Q2          -0.79515800      ActNor.EstInrToBdy[1]
Q3          0.53679500       ActNor.EstInrToBdy[2]
Q4          0.21037800       ActNor.EstInrToBdy[3]
GPS sec 1416281509      ActNor.EstTime
UTC time              11/22/2024 03:31:35     output

MPS Diff               0.588    deg
*MPS Diff should be < 1.5

MPS Cmd Vector X           -0.53291600
MPS Cmd Vector Y           -0.77276500
MPS Cmd Vector Z           -0.34472500

CSS Angle TLM   1.873
CSS Sun-Pointing Angle  3.746
                                17 Nov 24 @21:00:00
CSS Angle TLM   0.502411
CSS Sun-Pointing Angle  1.004822
                                22 Nov 24 @02:30:00
Pre-Burn
Thruster 1           9312     17 Nov 24 @21:00:00
Thruster 2           9056
Thruster 3           11296
Thruster 4           11552
Post-Burn
Thruster 1           9456     22 Nov 24 @02:30:00
Thruster 2           9200
Thruster 3           11456
Thruster 4           11712
Number of Pulses
Thruster 1           144
Thruster 2           144
Thruster 3           160
Thruster 4           160
Thruster Pairs
Thruster 1 & 2   288
Thruster 3 & 4   320



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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