[Isocops] IBEX Orbit# 170 v002 ATS (18 Jun 12 - 27 Jun 12)

Reno, Michelle mreno at swri.edu
Thu Jun 7 10:08:52 EDT 2012


I approve IBEX_2012_170_o0170a_v002

 

From: isocops-bounces at lists.sr.unh.edu
[mailto:isocops-bounces at lists.sr.unh.edu] On Behalf Of Ibex Mission
Operations
Sent: Tuesday, June 05, 2012 1:07 PM
To: Bret Hautamaki; IBEX-FDG; IBEXOPS/ORB; ISOC at New Hampshire; John
Cavallo; Tapley, Mark; Robert Lockwood; Roland Vanderspek; Ryan Tyler;
Sheral Wesley; Thomas Regiec; Tim Perry; Walker Cross
Subject: [Isocops] IBEX Orbit# 170 v002 ATS (18 Jun 12 - 27 Jun 12)

 

Guys,

  Here are the planning files and ATS for Orbit# 170.

Please respond to this email thread with comments/approvals.

All comments/approvals are due before 8 June 12 @1200 UTC.

 

Please note the following issues:

1.  Orbit# 170 Long Eclipse:  MPS Generated Eclipse Commands are DELETED
in this ATS(v002)
         #
2012-06-19T07:07:20.217Z,EclipseEntry,orbit:170,moderate:false,long:true
         #
2012-06-19T09:50:45.031Z,EclipseExit,orbit:170,moderate:false,long:true


2. Long Eclipse Flag Timing

         #
2012-06-19T07:07:20.217Z,EclipseEntry,orbit:170,moderate:false,long:true
         #
2012-06-19T09:50:45.031Z,EclipseExit,orbit:170,moderate:false,long:true


       @ECT_SetLongEclipseFlag TRUE $TIME=2012/06:19:05:37:00 (90
minutes before start of the eclipse)

        @ECT_SetLongEclipseFlag FALSE $TIME=2012/06:19:15:07:00 (8 hrs
after the start of the sclipse)

3. ==========================
SOFT CONSTRAINT VIOLATIONS
==========================
IBX-CLC-015: Battery charge falls below minimum from 2012/06/19 09:27:20
UTC -
             2012/06/19 10:19:00 UTC. Lowest charge level is 69.177923
             watt-minutes during this interval.

##  Normal ops load shed threshold is 3.6V

     When the long eclipse flag is set, the threshold is reduced to 3.1V

    If Load Shed 1 threshold is crossed, the spacecraft will enter
Contingency State.

    If Load Shed 2 threshold is crossed (lower voltages, 3.4V if long
eclipse flag is not set) the spacecraft

    will autonomously do a sun pointing maneuver to find the sun and
charge the batteries.

 

 

 

IBX-CLC-016: Science enable-to-spin pulse protection enable interval is
longer
             than the maximum allowed 300.000000 seconds for the times
             2012/06/19 15:17:45 UTC - 2012/06/22 16:35:14 UTC
(263848.969000
             seconds). 

##  The MPS Long Eclipse wrote does not include the  command to enable
the spin pulse protection command.  The command is 

generated by the STF file.

 

 


-- 
Sheral R. Wesley
SPVR., Satellite Operations
IBEX Mission OPS
(304) 279-6678 <tel:%28304%29%20279-6678> 

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