[Isocops] 2:30 EST : IBEX-Hi Yellow Count Rate CEM C

Wed Mar 7 15:23:17 EST 2012

Hello,

IBEX-Hi and -Lo have decided to reduce voltages and enter HVSTANDBY as a preventative response to current solar activity. The default plan is to leave the voltages down for the remainder of this arc and return to HVSCI at 15Re ascending of orbit 159 (we are currently near apogee of orbit 158). 

Attached is the CAR that will be executed during the 60-minute 6pm EST contact. Paul, Harald and I will be monitoring remotely. The party line will be open 10 minutes prior to the start of the pass.

3/07 2300 UTC (6pm EST) : Contact to lower voltages & enter HVSTANDBY
3/09 1845 UTC           : Post-sun maneuver contact - TBD on whether to keep
3/10 1736 UTC           : Uploaded o0158 DESCENDING commands (no effect besides mode changes)
3/11 1728 UTC           : Uploaded o0159 ASCENDING commands execute

Thanks,
Chelle

~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Chelle Reno
Austin Mission Consulting
(210) 478-7337 (c)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~

________________________________

From: Reno, Michelle
Sent: Wed 3/7/2012 1:38 PM
To: Reno, Michelle; Herb Funsten (hfunsten at lanl.gov); Dan Reisenfeld (dan.reisenfeld at umontana.edu); Paul Janzen (paul.janzen at umontana.edu); Allegrini, Frederic; McComas, Dave; Scherrer, John; Nathan Schwadron; Harald.Kucharek at unh.edu; Fuselier, Stephen; David Heirtzler; eberhard.moebius at unh.edu
Cc: Sheral Wesley; Tim Perry; Knapp, Deborah L. (GSFC-5840); lockwood.robert at orbital.com
Subject: RE: 2:30 EST : IBEX-Hi Yellow Count Rate CEM C

Sent out the Payload CAR before I saved it. Sorry.

________________________________

From: Reno, Michelle
Sent: Wed 3/7/2012 1:18 PM
To: Reno, Michelle; Herb Funsten (hfunsten at lanl.gov); Dan Reisenfeld (dan.reisenfeld at umontana.edu); Paul Janzen (paul.janzen at umontana.edu); Allegrini, Frederic; McComas, Dave; Scherrer, John; Nathan Schwadron; Harald.Kucharek at unh.edu; Fuselier, Stephen; David Heirtzler; eberhard.moebius at unh.edu
Cc: Sheral Wesley; Tim Perry; Knapp, Deborah L. (GSFC-5840); lockwood.robert at orbital.com
Subject: RE: 2:30 EST : IBEX-Hi Yellow Count Rate CEM C

Attached are 2 CARs for possible preventative responses. The preventative response contact is scheduled for 2300-0000 UTC (6-7pm EST)

CAR_DESC_HiOnly_120307 : Set Hi voltages to HVSTANDBY levels. Return to HVSCI so Lo can continue to collect data.
CAR_DESC_Payload_120307 : Set Hi & Lo voltages to HVSTANDBY levels. Enter HVSTANDBY.

________________________________

From: Reno, Michelle
Sent: Wed 3/7/2012 12:47 PM
To: Herb Funsten (hfunsten at lanl.gov); Dan Reisenfeld (dan.reisenfeld at umontana.edu); Paul Janzen (paul.janzen at umontana.edu); Allegrini, Frederic; McComas, Dave; Scherrer, John; Nathan Schwadron; Harald.Kucharek at unh.edu; Fuselier, Stephen; David Heirtzler; eberhard.moebius at unh.edu
Cc: Sheral Wesley; Tim Perry
Subject: 2:30 EST : IBEX-Hi Yellow Count Rate CEM C

Hello Payload team,

Please dial into the IBEX meet me line at 2:30 EST (~1 hour from now).

866-588-1857
289 1982#

Summary: 
CEM C counts toggling about the yellow limit of 1000 counts. 
CEM A, B 300 - 700 counts.
IBEX-Hi will autosafe at 5 consecutive measurements of >= 5000 counts. This is appropriately set for hardware safety.
Solar activity is high and will continue to be high.

Details:
IBEX-Hi saw yellow count rates on CEM C on the apogee pass that is finishing up right now. We called Paul during the pass for a preliminary diagnostic. He said the yellow limit of 1000 counts is conservative but he is calling the rest of the team to get a consensus on whether follow-up action is needed. We will summarize the discussion at the 2:30 call. Lo counts were within normal limits.

Follow-up action:
Appropriate follow up action, if IBEX-Hi ONLY wants to reduce voltages, would be to send the following commands:

DESCENDING_PL1
DESCENDING_HI
ASCENDING_PL2

Thanks,
Chelle

~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Chelle Reno
Austin Mission Consulting
(210) 478-7337 (c)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~

________________________________

From: Ibex Mission Operations [mailto:ibexops at gmail.com]
Sent: Wed 3/7/2012 10:23 AM
To: Michelle Reno; Nathan Schwadron; Tim Perry
Cc: Robert Lockwood; Scherrer, John
Subject: Incoming CMEs

Guys,
    I have received the warnings from space weather of several CME's this week.
SOLAR ACTIVITY: Big sunspot AR1429 has unleashed another major flare--an X5-class eruption on March 7th at 00:28 UT.   As a result of the blast, a radiation storm is underway and a CME will likely hit Earth's magnetic field in a day or so

I have the following contacts already scheduled. If more are needed, let me know 

IBEX,USHI02,ADD,03/07/12,067,18:00:00,03/07/12,067,18:35:00,,LAHO 2K IBEX Orbit# 158 Apogee Contact/HAW02
IBEX,USHI02,ADD,03/09/12,069,18:45:00,03/09/12,069,19:20:00,,LAHO 2K IBEX Orbit# 158 Post Sun Maneuver Contact/HAW02
IBEX,USAK01,ADD,03/10/12,070,22:15:00,03/10/12,070,23:15:00,,LAHO 160K IBEX Orbit# 158 SSR_Dump/Tracking Contact
IBEX,AUWA01,ADD,03/11/12,071,15:30:00,03/11/12,071,16:05:00,,LAHO 160K IBEX Orbit# 158 Tracking Contact

-- 
Sheral R. Wesley
SPVR., Satellite Operations
IBEX Mission OPS
(304) 279-6678

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