Tohban Report 2014-07-16

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Tohban Reports
Start Date: 9 Jul 2014
End Date: 16 Jul 2014
Tohban: Lindsay Glesener (Vice Tohban: Martin Fivian)
Tohban email:
Next Tohban: Hazel Bain
List all reports

Solar Activity

This was a very quiet week in terms of solar activity, with the GOES base level steadily declining for the past 3 days and right now sitting at ~B1 level, with a couple small B-scale peaks in the last 24 hours. The Max Millennium report predicts that it's possible the Sun will become spotless today for the first time since August 2011.

Spacecraft Operations

Last week ended with the start of the cooldown phase of the annealing cycle!

2014-Jul-9: This day brought us to the end of the scheduled warm phase of the anneal. Even though we had not remained constantly at 100C for the entire annealing period, it was decided to end the warm phase as scheduled. (Annealing at 70-100C isn't as good as 100C, but reversal of radiation damage still occurs.) The heater was turned off on the last pass of the day to start the cooldown.

2014-Jul-10: A spinup was performed between 17:50 and 00:06. The starting rate was 14.4 rpm and the final rate was 15.0 rpm. While this is obviously not needed for detector science, it is useful to have the spacecraft at full spin for analysis of SAS data.

2014-Jul-16: The cooldown has progressed normally all week, with no apparent anomalies.


The SSR fill is rising because we increased the rate of SAS data during the anneal. (Since we are not taking detector data, it's a good time to record high-cadence SAS data.) It's at ~41% now. For the time being this is not a concern but we should make sure we decrease the fill before we turn the detectors back on.

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