Tohban Report 2017-07-26

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(Created page with "{{Infobox Tohban Report| |start_date = 19 July 2017 |end_date = 26 July 2017 |tohban_name = Mitsuo Oka |tohban_email = moka@ssl.berkeley.edu |next_tohban = TBD }} == Solar Acti...")
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== Memory Management ==
== Memory Management ==
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Decimation was active/vigorous for the full time period, with the SSR level currently at around 20%.
+
Decimation was active/vigorous for the full time period, with the SSR level at around 20-30% (and 56% maximum).
== Spacecraft Status ==
== Spacecraft Status ==
-
Detectors 1, 3, 6, and 8 are recording events. The temperatures are about 130K and 128K for cold tips 1 and 2, respectively, as of July 26. The cold plates 1 and 2 are at about 155K and 153K. Cryocooler power is steady at 74.8W, for recent tmperatures, cryocooler efficiencies, and accelerometer values see:
+
Detectors 1, 3, 6, and 8 are recording events. The temperatures are about 130K and 128K for cold tips 1 and 2, respectively, as of July 26. The cold plates 1 and 2 are at about 155K and 153K. Cryocooler power is steady at 74.8W, for recent temperatures, cryocooler efficiencies, and accelerometer values see:
  http://sprg.ssl.berkeley.edu/~ayshih/soh/latest_temperatures.pdf
  http://sprg.ssl.berkeley.edu/~ayshih/soh/latest_temperatures.pdf

Latest revision as of 18:25, 26 July 2017


Tohban Reports
Start Date: 19 July 2017
End Date: 26 July 2017
Tohban: Mitsuo Oka
Tohban email: moka@ssl.berkeley.edu
Next Tohban: TBD
List all reports



Contents

Solar Activity

The sun was very quiet this week. The activity level remained at the A-class level during the last few days. There is one active region on disk, and we expect another quiet week.

TIME RANGE:19-Jul-17 00:00:00.000 -- 26-Jul-17 00:00:00.000 Flares above B, C, M, X class were 2 1 0 0

How many GOES flares occurred?

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

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

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

And how many had EXCELLENT coverage?

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

There were RHESSI flares/GOES flares 33 / 3 over the time range 19-Jul-17 26-Jul-17

Memory Management

Decimation was active/vigorous for the full time period, with the SSR level at around 20-30% (and 56% maximum).

Spacecraft Status

Detectors 1, 3, 6, and 8 are recording events. The temperatures are about 130K and 128K for cold tips 1 and 2, respectively, as of July 26. The cold plates 1 and 2 are at about 155K and 153K. Cryocooler power is steady at 74.8W, for recent temperatures, cryocooler efficiencies, and accelerometer values see:

http://sprg.ssl.berkeley.edu/~ayshih/soh/latest_temperatures.pdf


Data Gaps

None known.

Detector issues

Detectors 1, 3, 6, and 8 are powered on, and are recording events. No detector operations this week.

Det. 1R reset are currently at about 32000.

With the decreasing sun fraction, the temperatures will likely rise again and the future Tohban will have to watch Det. 3F livetime and Det. 1R reset rates.

Notes

Spacecraft Management

Decimation Active/Vigorous
HLAT Decimation Rear decimation
Night time data (fronts) plus/minus 4 minutes from daylight
Night time data (rears) plus/minus 4 minutes from daylight
Require extra passes? No
Requirement for moving pointer? No
Attenuator operation See Notes above
Ref. deadtime for Att.thresholds 17.1%
Detector problems? See above
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