Sorry about the date.

Timothy E.Perry

CRS IBEX OCO-2

Mission Operations

timothy.perry@ngc.com

Office (703) 406-5976

Cell (301) 606-1430

From: Perry, Timothy E [US] (SP)
Sent: Saturday, October 02, 2021 7:10 AM
To: Bobbett, James E [US] (SP) <James.Bobbett@ngc.com>; bhautama@gmail.com; carol.weaver@unh.edu; Cavallo, John A [US] (SP) <John.Cavallo@ngc.com>; Chubin, Eric [US] (SP) <Eric.Chubin@ngc.com>; Fleming, Ed [US] (SP) <Ed.Fleming@ngc.com>; ADS-IBEX@l3harris.com; ibexops@gmail.com; IBEXOPS@gmail.com; isocops@lists.sr.unh.edu; fair-play@comcast.net; kwfairchild@gmail.com; Ken.Fairchild@unh.edu; Leonard, Benjamin Y [US] (SP) <Benjamin.Leonard@ngc.com>; angoldconsulting@earthlink.net; nangold@princeton.edu; Perry, Timothy E [US] (SP) <Timothy.Perry@ngc.com>; Tyler, Ryan S [US] (SP) <Ryan.Tyler@ngc.com>; Wesley, Sheral R [US] (SP) <Sheral.Wesley@ngc.com>; Wynn, Reese [US] (SP) <Reese.Wynn@ngc.com>; ezirnstein@swri.edu
Subject: IBEX Goat Herder for Nov 1 & 2, 2021

All,

The perigee contacts were nominal. The inertial maneuver was successful. The star tracker had reset in the back orbit. I executed CAR # 344 and cleared the errors. The star tracker is performing nominally. The Orbit 544 ATS was uplinked. The spacecraft clock was updated and the 18 day timer was reset.

Tasks Accomplished:

CAR # 344 Reset FDC Totals and Response latch values

CAR # 1195 Orbit #544 ATS uplink

IBEX_2021_284_o0544a_v001 81 cmds

Set Spacecraft clock

Reset 18 day timer

SSR Dump -> Dump New

Results from the Inertial Maneuver:

Q1 -0.67137300 ActNor.EstInrToBdy[0]

Q2 -0.26583700 ActNor.EstInrToBdy[1]

Q3 0.66646800 ActNor.EstInrToBdy[2]

Q4 0.18550000 ActNor.EstInrToBdy[3]

GPS sec 1317204108 ActNor.EstTime

UTC time 10/02/2021 10:01:34 output

MPS Cmd Vector X -0.993511000

MPS Cmd Vector Y -0.100444000

MPS Cmd Vector Z -0.053347000

MPS Diff 0.666 deg

CSS Angle TLM 0.444545

CSS Sun-Pointing Angle 0.88909

28 Sept 21 @ 01:30:00

CSS Angle TLM 0.196832

CSS Sun-Pointing Angle 0.393664

02 Oct 21 @ 10:00:00

Pre-Burn

Thruster 1 9072 28 Sept 21 @ 01:30:00

Thruster 2 8832

Thruster 3 10256

Thruster 4 10496

Post-Burn

Thruster 1 9344 02 Oct 21 @ 10:00:00

Thruster 2 9104

Thruster 3 10560

Thruster 4 10800

Number of Pulses

Thruster 1 272

Thruster 2 272

Thruster 3 304

Thruster 4 304

Thruster Pairs