Tohban Report 2018-02-14

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Tohban Reports
Start Date: 7 Feb 2018
End Date: 14 Feb 2018
Tohban: Milo Buitrago-Casas
Tohban email:
Next Tohban: Pascal
List all reports


Solar Activity

After a quiescent solar period during the last couple of weeks, the Sun was very active and produced several of C-flares this week!!

How many GOES flares occurred?

 Flares above B, C, M, X class were     51     5     0     0

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

 Flares above B, C, M, X class were      7     2     0     0

And how many had EXCELLENT coverage?

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

There were RHESSI flares/GOES flares 13 / 56 over the time range 06-Feb-18 13-Feb-18

A handful of other GOES B-class flares took place during last week. The AR responsible for most of the activity of past week is disappearing over the West limb, solar activity has moderately decreased in the past few hours, and is currently below B-level. Solarham shows a 10% of probability of having an M-class flare.

1) C8.1 around 20180207T1347. Really good coverage of the impulsive phase by RHESSI.
2) C4.6 around 20180210T1321. Missed all of the impulsive phase due to night time.
3) C1.5 around 20180212T0135. RHESSI has good coverage of the impulsive phase.

Memory Management

At the beginning of this week we deleted data of February the 5th (by moving the read pointer):

2018-039-19:57:21 start sc_ssr_pnt (227359593)

The SSR is reaching a maximum of ~70% (!) and a minimum of ~65% at the end of a day. Next Tohban needs to consider to move the pointer again or deal with the detector noise to manage the SSR filling.

Spacecraft Status

Detectors 3, 6 and 8 are active and taking data.

The cold plate 1 and 2 temperatures are 158.863 K and 191.365 K.

Currently, the Cryocooler power is ~64.770 W and the acceleration is at ~13.354mg

Data Gaps

No apparent data gaps so far, but with the SSR full, we are lagging far behind.

= Detector issues

Other notes

A spin up was requested early today. No Attenuator motion this week. The attenuator threshold was set to XXX last Wednesday. The following operations were done that day:

2018-038-20:26:16:  start sc_ats_load("T18039SLTN34.00")
2018-038-20:28:16:  start attenuator013_bg
2018-038-20:28:27:  /IDPULOAD VALUE=0 ; 0 Min A0
2018-038-20:28:27:  /IDPULOAD VALUE=84 ; 32.94117647058824 Max A0
2018-038-20:28:27:  /IDPULOAD VALUE=75 ; 29.41176470588236 Min A1
2018-038-20:28:27:  /IDPULOAD VALUE=89 ; 34.90196078431373 Max A1
2018-038-20:28:27:  /IDPULOAD VALUE=73 ; 28.62745098039216 Min A2
2018-038-20:28:27:  /IDPULOAD VALUE=109 ; 42.74509803921569 Max A2
2018-038-20:28:27:  /IDPULOAD VALUE=77 ; 30.19607843137255 Min A3
2018-038-20:28:27:  /IDPULOAD VALUE=255 ; 100 Max A3

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 logic enabled
Detector problems? See notes above.
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