Tohban Report 2016-11-02

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== Solar Activity ==
== Solar Activity ==
-
The solar activity was extremely low, remained at B-level throughout the week. There is only one AR on disk, and so the solar activity is expected to remain low next week.
+
The solar activity was very low: a few low-B flares. A large coronal hole was present at the beginning of the tohban week, but has since rotated off the disk. Low (6%) probability of >C flare activity in the next day, according to solar monitor.
   
   
How many GOES flares occurred?
How many GOES flares occurred?
-
   Flares above B, C, M, X class were      3     0    0    0
+
   Flares above B, C, M, X class were      13     0    0    0
And how many of these are listed in the RHESSI flare list?
And how many of these are listed in the RHESSI flare list?
-
   Flares above B, C, M, X class were      1     0    0    0
+
   Flares above B, C, M, X class were      2     0    0    0
And how many had EXCELLENT coverage?
And how many had EXCELLENT coverage?
-
   Flares above B, C, M, X class were      1     0    0    0
+
   Flares above B, C, M, X class were      2     0    0    0
   
   
-
There were RHESSI flares/GOES flares          7 /            3
+
There were RHESSI flares/GOES flares          16 /            3
over the time range 18-Oct-16 25-Oct-16
over the time range 18-Oct-16 25-Oct-16
== Memory Management ==
== Memory Management ==
-
The SSR was at 0% at the end of BGS passes.  
+
The SSR has bee creeping up: now about 30% at end of pass set.
== Spacecraft Status ==
== Spacecraft Status ==
-
The spacecraft has remained stable. Detectors 3 and 9 continued recording events. The cold tips temperature have come down further, and they are currently 117.6 and 115.9 K as of 2016-10-26.  The cold plates, 1 and 2 are 142.0 and 140.8 K.  
+
D9f livetime is slowly decreasing, now at 80% level.
 +
D9r livetime has been plummeting, even with an increase in fast thresholds from 0xA0 to 0XB0. Recommend to increase BOTH front and rear by another 0x10.
 +
 
 +
There is only one BGS pass per day these days (the rest are AGO), so it is a bit more difficult to closely monitor the detectors.
 +
 
 +
%The spacecraft has remained stable. Detectors 3 and 9 continued %recording events. The cold tips temperature have come down further, %and they are currently 117.6 and 115.9 K as of 2016-10-26.  The cold %plates, 1 and 2 are 142.0 and 140.8 K.  
== Data Gaps ==
== Data Gaps ==

Revision as of 17:41, 2 November 2016


Tohban Reports
Start Date: 26 October 2016
End Date: 02 November 2016
Tohban: Pascal Saint-Hilaire
Tohban email: pascal@ssl.berkeley.edu
Next Tohban: TBD
List all reports



Contents

Solar Activity

The solar activity was very low: a few low-B flares. A large coronal hole was present at the beginning of the tohban week, but has since rotated off the disk. Low (6%) probability of >C flare activity in the next day, according to solar monitor.

How many GOES flares occurred?

 Flares above B, C, M, X class were      13     0     0     0

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

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

And how many had EXCELLENT coverage?

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

There were RHESSI flares/GOES flares 16 / 3 over the time range 18-Oct-16 25-Oct-16

Memory Management

The SSR has bee creeping up: now about 30% at end of pass set.

Spacecraft Status

D9f livetime is slowly decreasing, now at 80% level. D9r livetime has been plummeting, even with an increase in fast thresholds from 0xA0 to 0XB0. Recommend to increase BOTH front and rear by another 0x10.

There is only one BGS pass per day these days (the rest are AGO), so it is a bit more difficult to closely monitor the detectors.

%The spacecraft has remained stable. Detectors 3 and 9 continued %recording events. The cold tips temperature have come down further, %and they are currently 117.6 and 115.9 K as of 2016-10-26. The cold %plates, 1 and 2 are 142.0 and 140.8 K.

Data Gaps

There were some relatively large data gaps (as shown below) in addition to numerous short (300 s) gaps (not shown).

GAPS IN APP_ID = 1 (VC1-SOH) WITH PACKET RATE LT 30
2016-10-21T19:25:00.000 -- 2016-10-21T19:55:00.000       1800.0000
2016-10-21T20:25:00.000 -- 2016-10-21T20:35:00.000       600.00000
2016-10-21T21:00:00.000 -- 2016-10-21T21:15:00.000       900.00000
2016-10-25T22:40:00.000 -- 2016-10-26T00:00:00.000       4800.0000
GAPS IN APP_ID = 154 (VC1-PMTRAS) WITH PACKET RATE LT 4
2016-10-23T00:50:00.000 -- 2016-10-23T14:50:00.000       50400.000
2016-10-24T23:30:00.000 -- 2016-10-25T00:00:00.000       1800.0000
2016-10-25T22:40:00.000 -- 2016-10-26T00:00:00.000       4800.0000
GAPS IN APP_ID = 102 (VC3-MONITOR RATES) WITH PACKET RATE LT 30
2016-10-21T01:40:00.000 -- 2016-10-21T01:55:00.000       900.00000
2016-10-21T10:45:00.000 -- 2016-10-21T10:55:00.000       600.00000
2016-10-21T11:55:00.000 -- 2016-10-21T12:15:00.000       1200.0000
2016-10-21T12:30:00.000 -- 2016-10-21T12:40:00.000       600.00000
2016-10-21T13:00:00.000 -- 2016-10-21T13:20:00.000       1200.0000
2016-10-21T17:30:00.000 -- 2016-10-21T17:40:00.000       600.00000
2016-10-25T02:00:00.000 -- 2016-10-25T02:15:00.000       900.00000
2016-10-25T04:25:00.000 -- 2016-10-26T00:00:00.000       70500.000

Detector issues

Detectors 3 and 9 are powered on, and are recording events. The D9 rear fast threshold was raised from 0x80 to 0xA0.

2016-293-20:04:23 /IDPUTABLE9 OFFSET=REARFASTDAC
2016-293-20:04:33 /IDPULOAD VALUE=0x90
2016-293-20:06:16 /IDPUTABLE9 OFFSET=REARFASTDAC
2016-293-20:06:24 /IDPULOAD VALUE=0xA0

Notes

Spacecraft Management

Decimation Normal/Vigorous
HLAT Decimation No decimation
Night time data (fronts) full-time
Night time data (rears) full-time
Require extra passes? No
Requirement for moving pointer? No
Attenuator operation Working as expected
Detector problems? See notes above.
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