Tohban Report 2012-02-01

Tohban Reports
Start Date:	26 Jan 2012
End Date:	01 Feb 2012
Tohban:	Hugh Hudson
Tohban email:	hhudson@ssl.berkeley.edu
Next Tohban:	TBD
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Solar Activity

• RHESSI CONTINUES ANNEALING THIS WEEK

Solar activity was low, but alas the first X-class flare of 2012 did occur. Very fortunately, (a) we were in shadow, and (b) Fermi did not see BGO events.

How many GOES flares occurred?

Flares above B, C, M, X class were      2    17     0     1

And how many of these are listed in the RHESSI flare list?

Flares above B, C, M, X class were      0    0     0     0

And how many had EXCELLENT coverage?

Flares above B, C, M, X class were      0     0     0     0

There were 0/20 RHESSI flares/GOES flares over the time range 26-Jan-12 01-Feb-12. GOES is surging ahead!

Memory

We are taking a lot of SAS data, with memory fill in the tens of percents.

Data Gaps

Annealing

Detector issues

Annealing

Annealing plans

The passive cooldown began on schedule Monday, and the cryostat is cooling appropriately. The latest numbers as of Feb. 1's first pass are:

Cryocooler Power 20.861 W

Cryocooler Current 0.850 A

Accelerometer Average 10.758 mg

Cold Tip Temperature 1 234.616 K

Cold Tip Temperature 2 232.105 K

Cold Plate Temperature 1 315.341 K

Cold Plate Temperature 2 312.579 K

Cooldown plans

Power will be increased on the cooldown sequence some time towards the end of this week.