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SPHERE trending system: HEALTH CHECK report
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Last update: 2025-11-28T17:11:19 (UT)
  | now: 2025-12-19T07:21:39 (UT) muc03 QC pipeline: spher-0.56.0 (installed 2024-09-26)
same group: SHUTTER_V SHUTTER_R SHUTTER_I
close window history: 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024   2025   HEALTH
  ... ... ... ... ... ... ... ... ...
*Date on this monitor changes at 21:00 UT
png: Information and research:
- png file - advanced studies: QC1 browser | QC1 plotter
Plot
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Symb
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Source
*
Average ? Thresholds ? N_
data
QC1
parameter
Data
downloads
Remarks
method value unit method value
1 QC1DB MEDIAN 0.002738 ADU VAL0,0.08 11 qc_plane_rms this | last_yr | all SlowPolarimetry, detector 1
2 QC1DB MEDIAN 0.002738 ADU VAL0,0.08 11 qc_plane_rms this | last_yr | all SlowPolarimetry, detector 2
3 QC1DB MEDIAN 0.001981 ADU VAL0,0.08 12 qc_plane_rms this | last_yr | all FastPolarimetry, detector 1
4 QC1DB MEDIAN 0.001981 ADU VAL0,0.08 12 qc_plane_rms this | last_yr | all FastPolarimetry, detector 2
*Data sources: QC1DB: QC1 database; LOCAL: local data source
Plot 1
scores: 2|
data source:sphere_zimpol_iflat_pol
(QC1 database)
dataset:qc_plane_rms
median:0.002738ADU
fixed thresholds:0...0.08ADU
N_data plotted:11
[click plot for closeup]
Plot 2
scores: 2|
data source:sphere_zimpol_iflat_pol
(QC1 database)
dataset:qc_plane_rms
median:0.002738ADU
fixed thresholds:0...0.08ADU
N_data plotted:11
[click plot for closeup]
Plot 3
scores: 2|
data source:sphere_zimpol_iflat_pol
(QC1 database)
dataset:qc_plane_rms
median:0.001981ADU
fixed thresholds:0...0.08ADU
N_data plotted:12
[click plot for closeup]
Plot 4
scores: 2|
data source:sphere_zimpol_iflat_pol
(QC1 database)
dataset:qc_plane_rms
median:0.001981ADU
fixed thresholds:0...0.08ADU
N_data plotted:12
[click plot for closeup]
This plot

This plot monitors the shutter issue, that occured between 2015-09-09 and 2016-06. The issue is explained on the SPHERE problems page and on the plot tutorial page for zimpol flats. Only the polarimetric direction = zero and cycle = odd signal is monitored. The following setups are covered:

  • V filter, DIT, NDIT = 4.0, 10
  • N_R filter, DIT, NDIT = 2.0, 20
  • N_I filter, DIT, NDIT = 2.0, 40
The plot contains four boxes, which shows the shutter parameter (essentially the RMS over the NDIT subintegration signals) for both read modes (SlowPolarimetry and Fastpolarimetry) and for both detectors.  
General information

Click on any of the plots to see a close-up version.

The latest date is indicated on top of the plot.

If configured,

  • data points belonging to the latest date are specially marked
  • statistical averages are indicated by a solid line, and thresholds by broken lines
  • outliers are marked by a red asterisk. They are defined as data points outside the threshold lines
  • "aliens" (= data points outside the plot Y limits) are marked by a red arrow ( or )
  • you can download the data for each parameter set if the 'Data downloads' link shows up