Tohban Report 2017-03-01

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(Data Gaps)
(Spacecraft Status)
 
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Decimation was normal/vigorous.  
Decimation was normal/vigorous.  
-
[Why not quiet/vigorous, so we do not decimate?]
 
BGS station is still in the red for downlink. Still unclear what the issue is.  
BGS station is still in the red for downlink. Still unclear what the issue is.  
-
This means we never know when what the monitor rates are until a few days after the fact,
+
Besides VC2 dumps, the quickest way to see what Monitor Rates are doing is the VC1 plots generated by Albert.
-
unless we specifically ask for VC2 dumps. Perhaps we sould have them automatically while BGS is down?
+
They might not show much for AGO passes, though, due to SAA. Better for WLP passes.
== Spacecraft Status ==
== Spacecraft Status ==
Line 38: Line 37:
D3 and D6 are on. Cryocooler power is still at 75W.
D3 and D6 are on. Cryocooler power is still at 75W.
-
From Nicole's notes last week:
+
Attenuator average deadtime: currently 14.9%, I've seen 15.9% peak.
-
The background flux is up at 12%, and the out shutter is set to ~15%. We still have margin, but Ops suggest that we adjust this. The idea is that we will raise the thin shutter out threshold to 5% above the current deadtime, so we will raise it to ~17%.
+
 
-
==> I have seen almost 16% on the status page.
+
 
 +
17-053-23:39:39 start attenuator013_bg  ; set to 16.5%
 +
 
 +
17-053-23:39:50 /IDPULOAD VALUE=0      ; 0      Min A0
 +
17-053-23:39:50 /IDPULOAD VALUE=55    ; 21.5686 Max A0
 +
17-053-23:39:50 /IDPULOAD VALUE=46    ; 18.03922 Min A1
 +
17-053-23:39:50 /IDPULOAD VALUE=60    ; 23.5294 Max A1
 +
17-053-23:39:50 /IDPULOAD VALUE=44    ; 17.2549 Min A2
 +
17-053-23:39:50 /IDPULOAD VALUE=80    ; 31.3725 Max A2
 +
17-053-23:39:50 /IDPULOAD VALUE=48    ; 18.8235 Min A3
 +
17-053-23:39:50 /IDPULOAD VALUE=255    ; 100    Max A3
 +
 
 +
17-053-23:42:06 start show_temps_avg
 +
17-053-23:42:24 CP1: 365.5 K
 +
17-053-23:42:24 CP2: 365.0 K
 +
17-053-23:42:24 CT1: 356.7 K
 +
17-053-23:42:24 CT2: 355.9 K
 +
17-053-23:42:24 TST: 378.4 K
 +
17-053-23:42:24 cp1 - ct1 = 24.41 K
 +
17-053-23:42:24 Cryo Power: 27.5 W
 +
17-053-23:42:24 Cryo Accel: 3.37 mG
== Data Gaps ==
== Data Gaps ==
Line 47: Line 66:
-
DATA GAPS FOR 2017/02/22
+
DATA GAPS FOR 2017/02/22
  TIME RANGE: 2017-02-22T00:00:00.000 -- 2017-02-23T00:00:00.000
  TIME RANGE: 2017-02-22T00:00:00.000 -- 2017-02-23T00:00:00.000
  GAPS IN APP_ID = 1 (VC1-SOH) WITH PACKET RATE LT 30
  GAPS IN APP_ID = 1 (VC1-SOH) WITH PACKET RATE LT 30
Line 63: Line 82:
-
DATA GAPS FOR 2017/02/23
+
DATA GAPS FOR 2017/02/23
-
TIME RANGE: 2017-02-23T00:00:00.000 -- 2017-02-24T00:00:00.000
+
TIME RANGE: 2017-02-23T00:00:00.000 -- 2017-02-24T00:00:00.000
-
NO GAPS IN APP_ID = 1 (VC1-SOH)
+
NO GAPS IN APP_ID = 1 (VC1-SOH)
-
NO GAPS IN APP_ID = 154 (VC1-PMTRAS)
+
NO GAPS IN APP_ID = 154 (VC1-PMTRAS)
-
GAPS IN APP_ID = 102 (VC3-MONITOR RATES) WITH PACKET RATE LT 30
+
GAPS IN APP_ID = 102 (VC3-MONITOR RATES) WITH PACKET RATE LT 30
-
N_GAPS          3
+
N_GAPS          3
-
GAP START TIME              GAP END TIME                  GAP (SEC)
+
GAP START TIME              GAP END TIME                  GAP (SEC)
-
2017-02-23T00:00:00.000 -- 2017-02-23T00:05:00.000      300.00000
+
2017-02-23T00:00:00.000 -- 2017-02-23T00:05:00.000      300.00000
-
2017-02-23T00:10:00.000 -- 2017-02-23T02:20:00.000      7800.0000 !!!!!!!!!!!!!!!!!!!!!!!!!!
+
2017-02-23T00:10:00.000 -- 2017-02-23T02:20:00.000      7800.0000 !!!!!!!!!!!!!!!!!!!!!!!!!!
-
2017-02-23T16:25:00.000 -- 2017-02-23T16:30:00.000      300.00000
+
2017-02-23T16:25:00.000 -- 2017-02-23T16:30:00.000      300.00000
-
DATA GAPS FOR 2017/02/24
+
DATA GAPS FOR 2017/02/24
-
TIME RANGE: 2017-02-24T00:00:00.000 -- 2017-02-25T00:00:00.000
+
TIME RANGE: 2017-02-24T00:00:00.000 -- 2017-02-25T00:00:00.000
-
GAPS IN APP_ID = 1 (VC1-SOH) WITH PACKET RATE LT 30
+
GAPS IN APP_ID = 1 (VC1-SOH) WITH PACKET RATE LT 30
-
N_GAPS          2
+
N_GAPS          2
-
GAP START TIME              GAP END TIME                  GAP (SEC)
+
GAP START TIME              GAP END TIME                  GAP (SEC)
-
2017-02-24T14:40:00.000 -- 2017-02-24T15:10:00.000      1800.0000
+
2017-02-24T14:40:00.000 -- 2017-02-24T15:10:00.000      1800.0000
-
2017-02-24T16:20:00.000 -- 2017-02-24T16:25:00.000      300.00000
+
2017-02-24T16:20:00.000 -- 2017-02-24T16:25:00.000      300.00000
-
GAPS IN APP_ID = 154 (VC1-PMTRAS) WITH PACKET RATE LT 4
+
GAPS IN APP_ID = 154 (VC1-PMTRAS) WITH PACKET RATE LT 4
-
N_GAPS          1
+
N_GAPS          1
-
GAP START TIME              GAP END TIME                  GAP (SEC)
+
GAP START TIME              GAP END TIME                  GAP (SEC)
-
2017-02-24T17:20:00.000 -- 2017-02-24T17:35:00.000      900.00000
+
2017-02-24T17:20:00.000 -- 2017-02-24T17:35:00.000      900.00000
-
NO GAPS IN APP_ID = 102 (VC3-MONITOR RATES)
+
NO GAPS IN APP_ID = 102 (VC3-MONITOR RATES)
== Detector issues ==
== Detector issues ==
-
D3 rear continues to have issues with Livetime dropping to 0% at times. Since we are maxed out on the threshold the only knob we have left to turn is the HV, and for the sake of keeping the front segments operating well we decided to keep the HV at the present level.
+
D6f livetime has been dropping fairly fast. F6f fast thresholds were commanded from 0x90 to 0xB0 on Feb 28th:
-
 
+
-
D6 front fast threshold was increased from 0x80 to 0x90 on Tuesday Feb 21
+
-
 
+
-
17-052-17:21:46 start idib_chg_thrshld(6,FRONT,FAST,0x90) ; was 0x80
+
-
17-052-17:22:22 start show_temps_avg
+
-
17-052-17:22:40 CP1: 152.6 K
+
-
17-052-17:22:40 CP2: 151.2 K
+
-
17-052-17:22:40 CT1: 127.9 K
+
-
17-052-17:22:40 CT2: 126.1 K
+
-
17-052-17:22:40 TST: 189.0 K
+
-
17-052-17:22:40 cp1 - ct1 = 24.61 K
+
-
17-052-17:22:40 Cryo Power: 75.4 W
+
-
17-052-17:22:40 Cryo Accel: 12.1 mG
+
 +
17-059-20:49:32 start idib_chg_thrshld(6,FRONT,FAST,0xB0)
 +
17-059-20:49:36 /IDPUDUMPTABL TABLE=DIBTBL6
 +
17-059-20:49:36 /IDPUTABLE6 OFFSET=FRONTFASTDAC
 +
17-059-20:49:48 /IDPULOAD VALUE=0xB0                                ; was 0x90
 +
17-059-20:50:06 start show_temps_avg
 +
17-059-20:50:24 CP1: 154.5 K
 +
17-059-20:50:24 CP2: 153.1 K
 +
17-059-20:50:24 CT1: 130.0 K
 +
17-059-20:50:24 CT2: 128.2 K
 +
17-059-20:50:24 TST: 190.0 K
 +
17-059-20:50:24 cp1 - ct1 = 24.44 K
 +
17-059-20:50:24 Cryo Power: 75.5 W
 +
17-059-20:50:24 Cryo Accel: 12.1 mG
 +
...but it looks like we will need another increase as soon as we get monitor rate information during the above change.
== Notes ==
== Notes ==

Latest revision as of 19:54, 1 March 2017


Tohban Reports
Start Date: 22 February 2017
End Date: 1 March 2017
Tohban: Pascal Saint-Hilaire
Tohban email: pascal@ssl.berkeley.edu
Next Tohban: TBD
List all reports



Contents

Solar Activity

This week was quiet, aside for two high-B flares on Sunday and Monday.

How many GOES flares occurred?

 Flares above B, C, M, X class were     17     3     0     0

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

 Flares above B, C, M, X class were      9     3     0     0

And how many had EXCELLENT coverage?

 Flares above B, C, M, X class were      4     1     0     0

There were RHESSI flares/GOES flares 17 / 20 over the time range 21-Feb-17 28-Feb-17


Memory Management

Memory seems steady at ~25% at end of pass daily set.

Decimation was normal/vigorous.

BGS station is still in the red for downlink. Still unclear what the issue is. Besides VC2 dumps, the quickest way to see what Monitor Rates are doing is the VC1 plots generated by Albert. They might not show much for AGO passes, though, due to SAA. Better for WLP passes.

Spacecraft Status

D3 and D6 are on. Cryocooler power is still at 75W.

Attenuator average deadtime: currently 14.9%, I've seen 15.9% peak.


17-053-23:39:39 start attenuator013_bg  ; set to 16.5%
17-053-23:39:50 /IDPULOAD VALUE=0       ; 0      Min A0
17-053-23:39:50 /IDPULOAD VALUE=55     ; 21.5686 Max A0
17-053-23:39:50 /IDPULOAD VALUE=46     ; 18.03922 Min A1
17-053-23:39:50 /IDPULOAD VALUE=60     ; 23.5294 Max A1
17-053-23:39:50 /IDPULOAD VALUE=44     ; 17.2549 Min A2
17-053-23:39:50 /IDPULOAD VALUE=80     ; 31.3725 Max A2
17-053-23:39:50 /IDPULOAD VALUE=48     ; 18.8235 Min A3
17-053-23:39:50 /IDPULOAD VALUE=255     ; 100    Max A3
17-053-23:42:06 start show_temps_avg
17-053-23:42:24 CP1: 365.5 K
17-053-23:42:24 CP2: 365.0 K
17-053-23:42:24 CT1: 356.7 K
17-053-23:42:24 CT2: 355.9 K
17-053-23:42:24 TST: 378.4 K
17-053-23:42:24 cp1 - ct1 = 24.41 K
17-053-23:42:24 Cryo Power: 27.5 W
17-053-23:42:24 Cryo Accel: 3.37 mG

Data Gaps

Only VC3 data gaps of import is 2017-02-23T00:10:00.000 -- 2017-02-23T02:20:00.000 7800.0000


DATA GAPS FOR 2017/02/22
TIME RANGE: 2017-02-22T00:00:00.000 -- 2017-02-23T00:00:00.000
GAPS IN APP_ID = 1 (VC1-SOH) WITH PACKET RATE LT 30
N_GAPS           1
GAP START TIME              GAP END TIME                   GAP (SEC)
2017-02-22T18:35:00.000 -- 2017-02-22T22:10:00.000       12900.000
GAPS IN APP_ID = 154 (VC1-PMTRAS) WITH PACKET RATE LT 4
N_GAPS           1
GAP START TIME              GAP END TIME                   GAP (SEC)
2017-02-22T18:35:00.000 -- 2017-02-22T22:05:00.000       12600.000
GAPS IN APP_ID = 102 (VC3-MONITOR RATES) WITH PACKET RATE LT 30
N_GAPS           1
GAP START TIME              GAP END TIME                   GAP (SEC)
2017-02-22T06:05:00.000 -- 2017-02-22T06:15:00.000       600.00000


DATA GAPS FOR 2017/02/23
TIME RANGE: 2017-02-23T00:00:00.000 -- 2017-02-24T00:00:00.000
NO GAPS IN APP_ID = 1 (VC1-SOH)
NO GAPS IN APP_ID = 154 (VC1-PMTRAS)
GAPS IN APP_ID = 102 (VC3-MONITOR RATES) WITH PACKET RATE LT 30
N_GAPS           3
GAP START TIME              GAP END TIME                   GAP (SEC)
2017-02-23T00:00:00.000 -- 2017-02-23T00:05:00.000       300.00000
2017-02-23T00:10:00.000 -- 2017-02-23T02:20:00.000       7800.0000 !!!!!!!!!!!!!!!!!!!!!!!!!!
2017-02-23T16:25:00.000 -- 2017-02-23T16:30:00.000       300.00000


DATA GAPS FOR 2017/02/24
TIME RANGE: 2017-02-24T00:00:00.000 -- 2017-02-25T00:00:00.000
GAPS IN APP_ID = 1 (VC1-SOH) WITH PACKET RATE LT 30
N_GAPS           2
GAP START TIME              GAP END TIME                   GAP (SEC)
2017-02-24T14:40:00.000 -- 2017-02-24T15:10:00.000       1800.0000
2017-02-24T16:20:00.000 -- 2017-02-24T16:25:00.000       300.00000
GAPS IN APP_ID = 154 (VC1-PMTRAS) WITH PACKET RATE LT 4
N_GAPS           1
GAP START TIME              GAP END TIME                   GAP (SEC)
2017-02-24T17:20:00.000 -- 2017-02-24T17:35:00.000       900.00000
NO GAPS IN APP_ID = 102 (VC3-MONITOR RATES)

Detector issues

D6f livetime has been dropping fairly fast. F6f fast thresholds were commanded from 0x90 to 0xB0 on Feb 28th:

17-059-20:49:32 start idib_chg_thrshld(6,FRONT,FAST,0xB0)
17-059-20:49:36 /IDPUDUMPTABL TABLE=DIBTBL6
17-059-20:49:36 /IDPUTABLE6 OFFSET=FRONTFASTDAC
17-059-20:49:48 /IDPULOAD VALUE=0xB0                                 ; was 0x90
17-059-20:50:06 start show_temps_avg
17-059-20:50:24 CP1: 154.5 K
17-059-20:50:24 CP2: 153.1 K
17-059-20:50:24 CT1: 130.0 K
17-059-20:50:24 CT2: 128.2 K
17-059-20:50:24 TST: 190.0 K
17-059-20:50:24 cp1 - ct1 = 24.44 K
17-059-20:50:24 Cryo Power: 75.5 W
17-059-20:50:24 Cryo Accel: 12.1 mG 

...but it looks like we will need another increase as soon as we get monitor rate information during the above change.

Notes

Spacecraft Management

Decimation Normal/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? Yes
Attenuator operation Commanded out
Detector problems? See notes above.
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