SECCHI Shutter Mechanism Spin Times

Polarizer Spin Times

as of 2017/12/21 (COR 1-B 2014/09/30)

Note: For Feb.-Oct. 2012, the COR 1-B polarizer data points are a change from previous. A CCW test is done before the CW test. For previous CCW tests back in 2007, the mechanisms were first spun CW, then CCW. For 2012 the order was reversed. This change was implemented for all polarizers starting 2012/04/17, and then discontinued in October 2012.
Shutter mechanism spin times as of 2017/07/31
Shutter mechanism spin times as of 2017/07/31
SECCHI Polarizer CCW Average Spin Times (graph)
SECCHI Polarizer CCW Average Spin Times
SECCHI Polarizer CW Average Spin Times (graph)
SECCHI Polarizer CW Average Spin Times

COR1-B Polarizer jitter problem

The following plots and data were generated by exp_check.pro:

 

Allexpplot – Plot of averaged exposures (actual - cmmanded):
polarizer jitter image
COR1-B Polarizer jitter problem
Plot of averaged exposures (actual - cmmanded): (graph)
SUMMARY PLOT OF 100-EXPOSURE AVERAGES OF (EXPTIME - EXPCMD)

Euviexpplot

Plots of EUVI averaged exposures (actual - cmmanded):
EUVI-A PlotEUVI-B PlotEUVI-A plot 2 secondsEUVI-B 2 SecondsEUVI-A 4 secondsEUVI-B 4 secondsEUVI-A 16 secondsEUVI-B 16 secondsEUVI-A 32 SecondsEUVI-B 32 Seconds

Cor1expplot

Plots of COR 1 averaged exposures (actual - cmmanded):

Cor2expplot

Plots of COR 2 averaged exposures (actual - cmmanded):
COR2-ACOR2-B
 
 
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