All,

The perigee contacts were nominal for CMD & TLM. The Inertial maneuver was successful. The Orbit #537 ATS was uploaded, SSR Dump New completed, and CAR #1180 to transmit remaining Orbit #534 SSR Blocks was successfully completed.

Tasks Accomplished:

SSR Dump à Dump New

CAR #1181 Orbit #537 ATS Upload

CAR #1180 Dump remaining Orbit #534 SSR Blocks

Reset 18 Day Timer

Verify Maneuver and check SOH

Results from the Inertial maneuver:

Q1          -0.36932600       ActNor.EstInrToBdy[0]

Q2          -0.44924900       ActNor.EstInrToBdy[1]

Q3          -0.17975200       ActNor.EstInrToBdy[2]

Q4          0.79338700         ActNor.EstInrToBdy[3]

GPS sec 1311786240        ActNor.EstTime

UTC time             07/31/2021 17:03:46      output

MPS Diff              0.608 deg

MPS Cmd Vector X           -0.585175000

MPS Cmd Vector Y           0.747537000

MPS Cmd Vector Z            0.314258000

CSS Angle TLM   1.80515

CSS Sun-Pointing Angle   3.6103  

                              27 Jul 21 @ 04:00:00

CSS Angle TLM   0.611658            

CSS Sun-Pointing Angle   1.223316            

                              31 Jul 21 @ 17:00:00

Pre-Burn            

Thruster 1            5424      27 Jul 21 @ 04:00:00

Thruster 2            5296     

Thruster 3            6000     

Thruster 4            6128     

Post-Burn

Thruster 1            5696      31 Jul 21 @ 17:00:00

Thruster 2            5568     

Thruster 3            6288     

Thruster 4            6416     

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       

Eric Chubin  | Principal Engineer Satellite Systems

Northrop Grumman Corporation  |  Space Systems

O: 703-429-7015  |  C: 240-328-2098  |  eric.chubin@ngc.com