[Isocops] IBEX Orbit #603 ATS Approval (31 Mar - 09 Apr 2023)

Sun Apr 2 12:21:30 EDT 2023

All,

   Attached are the planning files for Orbit #603.  Please respond to this thread with comments and approvals.

Approvals are required by 0200, 03 April 2023.

All,

    We will be deleting the timed commands for orbit 603 & 604 tonight and up-linking a version 2 Orbit 603 ATS with apogee and perigee sun maneuvers. We are experiencing a star tracker issue that prohibits us from safely performing an inertial maneuver. Here are the changes to note for the new version 2 ATS for orbit 603.

Tonight’s contact:

IBEX,USHI02,ADD,04/03/23,093,08:00:00,04/03/23,093,09:00:00,,LAHO 2K IBEX-3 Orbit# 603 SC Replace ATS/Blind Acq Contact 40re Asc

   This will be blind acquisition. The transmitter off command for this contact is in the ATS. A separate transmitter off command will be uplinked at AOS just in case I am not able to up-link the ATS.

The apogee Descending commands:

 Original descending commands started to execute @2023/04:04:10:01:48 and now they will be executing @2023/04:04:19:59:40. So, it is important to complete ATS replacement prior to the execution of these commands @2023/04:04:10:01:48.

The apogee contact has been moved:

IBEX,USHI01,DELETE,04/04/23,094,15:00:00,04/04/23,094,15:35:00,,LAHO 2K IBEX-3 Orbit# 603 Apogee Tracking Contact 43re APO

IBEX,USHI01,ADD,04/05/23,095,13:00:00,04/05/23,095,13:35:00,,LAHO 2K IBEX-3 Orbit# 603 Apogee Tracking Contact 43re Desc

The original Inertial maneuver executed @ 2023/04:04:11:57:46 and the new sun maneuver executes @2023/04:04:21:55:38. So the apogee contact had to be moved.

The SSR contact at perigee has been extended to dump both orbits 602 and 603 data.

IBEX,USHI01,DELETE,04/09/23,099,03:00:00,04/09/23,099,04:00:00,,LAHO 160K IBEX-3 Orbit# 603 SSR_Dump/Tracking Contact 13re Desc

IBEX,USHI01,ADD,04/09/23,099,03:00:00,04/09/23,099,04:30:00,,LAHO 160K IBEX-3 Orbit# 603 SSR_Dump/Tracking Contact 13re Desc

All Contact changes have been confirmed at the time of the ATS generation.

Please note the following:

  1.  Apogee Sun Maneuver  04/04/2023 21:55:38

  1.  Perigee Sun Maneuver 04/09/2023 02:23:57

3.       Battery Balancing this orbit

Begin 04/09/2023 10:00:00– End 04/09/2023 11:30:00

4.       Command Load Constraint Violation Report (CCVR)

IBEX_2023_090_o0603a_v002.ccvr

# Input files:         1

#   IBEX_2023_090_o0603a_v002.scr

==========================

HARD CONSTRAINT VIOLATIONS

==========================

NO VIOLATIONS.

==========================

SOFT CONSTRAINT VIOLATIONS

==========================

IBX-CLC-006: Planned transmission at 2023/04/09 02:58:00 UTC - 2023/04/09

             04:32:00 UTC exceeds the maximum contiguous transmission time of

             5400 seconds

IBX-CLC-016: No command to enable spin pulse protection was found after

             transition to science mode at 2023/03/31 16:53:53 UTC

IBX-CLC-016: No command to enable spin pulse protection was found after

             transition to science mode at 2023/04/04 23:10:44 UTC

==============

OTHER MESSAGES

==============

NO MESSAGES.

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