Tohban Report 2011-01-05: Difference between revisions

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SSR reaches 0% during last or penultimate of the daily pass set. Max is 25%.
SSR reaches 0% during last or penultimate of the daily pass set. Max is 25%.
Given the SSR's good behaviour, it has been decided that we will turn on the REAR segments during RHESSI night.
Given the SSR's good behaviour, it has been decided that we will turn on the *rear* segments during RHESSI night.


== Data Gaps ==
== Data Gaps ==
Glitch yesterday at Wallops - data will be replayed.
Glitch yesterday at Wallops - data will be replayed.
Otherwise, only one 300s VC3 gap on Monday.
Otherwise, only one 300 s long VC3 gap on Monday.


== Spacecraft Status ==
== Spacecraft Status ==
   
   
Spin rate is 15 rpm and the cold plate 2 temperature is 100 K, normal due to precession.
Spin rate is 15 rpm and the cold plate 2 temperature is 100 K, normal due to precession.
But there is an overall upward trend since last two years. 100K is the "threshold" for extra-vulnerability to radiation damage. Brian Dennis will send an email to D. Smith asking whether the cryocooler power (71 W) should be increased a little bit. Ops think that should be ok -- to be verified.
But there is an overall upward trend since last two years. 100K is the (probably rule-of-thumbish) threshold for extra-vulnerability to radiation damage. Brian Dennis will send an email to D. Smith asking whether the cryocooler power (currently 71 W) should be increased a little bit. Ops think that should be ok, but to be verified.


 
[[Category:Tohban Report 2011]]
[[Category:Tohban Report]]
[[Category:Tohban]]

Latest revision as of 01:24, 7 March 2013


Tohban Reports
Start Date: 29 Dec 2010
End Date: 05 Jan 2011
Tohban: Pascal Saint-Hilaire
Tohban email: shilaire@ssl.berkeley.edu
Next Tohban: Jim McTiernan
List all reports



Solar Activity

Small ARs on the Sun have produced mild activity this week: 21 B-flares, 2 C-flares.

Memory Management

SSR reaches 0% during last or penultimate of the daily pass set. Max is 25%. Given the SSR's good behaviour, it has been decided that we will turn on the *rear* segments during RHESSI night.

Data Gaps

Glitch yesterday at Wallops - data will be replayed. Otherwise, only one 300 s long VC3 gap on Monday.

Spacecraft Status

Spin rate is 15 rpm and the cold plate 2 temperature is 100 K, normal due to precession. But there is an overall upward trend since last two years. 100K is the (probably rule-of-thumbish) threshold for extra-vulnerability to radiation damage. Brian Dennis will send an email to D. Smith asking whether the cryocooler power (currently 71 W) should be increased a little bit. Ops think that should be ok, but to be verified.