[Isocops] IBEX Goat Herder 3 August 2024

[Coca Gonzales, Andrea [US] (SP)]

Hello team,

During the first perigee pass, the ebnos were extremely low so I switched the data rate to 160k and I was unable to get all the ssr data blocks by the end of the contact. After the pass, SSC notified me of multiple vc2 sequence errors, so I reached out to Ken, and he advised to do a complete redump next perigee pass. I performed the following, dump SSR (VCid2), upload ATS for orbit 658 (CAR #1405) and reset master timer on string Ibex-2. The second perigee contact was nominal, and the inertial maneuver was successful.

Tasks Accomplished:
Reset Master Timer
Reset FDC Totals
Dump ssr data (vc2)
CAR #1405 Orbit 658 ATS upload
   IBEX_2024_225_o0658a_v001 - 101 commands

Results from the inertial maneuver:

Q1 -0.00912598
Q2 -0.58600900
Q3 -0.60267600
Q4 0.54156500

GPS sec 1406722771
UTC time 08/03/2024 12:19:17
MPS Diff 0.851

MPS Cmd Vector X -0.63117600
MPS Cmd Vector Y 0.71517300
MPS Cmd Vector Z 0.30024000

CSS Angle TLM 0.190774
CSS Sun-Pointing Angle 0.381548
  30 Jul 24 @02:00:00
CSS Angle TLM 0.189746
CSS Sun-Pointing Angle 0.379492
  03 Aug 24 @12:00:00

Pre-Burn
Thruster 1 3008 30 Jul 24 @02:00:00
Thruster 2 2944
Thruster 3 3120
Thruster 4 3184
Post-Burn
Thruster 1 3280 03 Aug 24 @12:00:00
Thruster 2 3216
Thruster 3 3408
Thruster 4 3472
Number of Pulses
Thruster 1 272
Thruster 2 272
Thruster 3 288
Thruster 4 288
Thruster Pairs
Thruster 1 & 2 544
Thruster 3 & 4 576

Kind regards,

Andrea Coca Gonzales | Associate Engineer Satellite Systems | MEV | ICESat-2 | TESS | IBEX
Northrop Grumman Corporation  |  Space Systems
Andrea.CocaGonzales at ngc.com<mailto:Andrea.CocaGonzales at ngc.com>

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