SPHERE trending system: HEALTH CHECK report
Last update: 2026-04-01T05:10:24 (UT)
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*Date on this monitor changes at 21:00 UT
Plot?
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Source *
Average ?
Thresholds ?
N_ data
QC1 parameter
Data downloads
Remarks
method
value
unit
method
value
1
QC1DB
MEDIAN
93.7567
ADU/h
VAL 70,130
16
qc_median_iframe
this |
last_yr |
all
median dark current based on 100 sec exposure, imaging channel (imaging rows)
2
QC1DB
MEDIAN
27.796
ADU/h
VAL 5,50
16
qc_median_pframe
this |
last_yr |
all
median dark current based on 100 sec exposure, unused polarimetry channel (unused rows)
3
QC1DB
MEDIAN
70.8695
ADU/h
VAL 40,100
16
qc_median_iframe
this |
last_yr |
all
median dark current based on 100 sec exposure, imaging channel (imaging rows)
4
QC1DB
MEDIAN
20.6361
ADU/h
VAL 5,40
16
qc_median_pframe
this |
last_yr |
all
median dark current based on 100 sec exposure, unused polarimetry channel (unused rows)
5
QC1DB
MEDIAN
2.35659
ADU
none
16
qc_rms_iframe
this |
last_yr |
all
imaging channel
6
QC1DB
MEDIAN
2.41231
ADU
none
16
qc_rms_pframe
this |
last_yr |
all
unused polarimetry channel
7
QC1DB
MEDIAN
2.4748
ADU
none
16
qc_rms_iframe
this |
last_yr |
all
imaging channel
8
QC1DB
MEDIAN
2.28424
ADU
none
16
qc_rms_pframe
this |
last_yr |
all
unused polarimetry channel
*Data sources: QC1DB: QC1 database; LOCAL: local data source
Plot 1 scores: 4 |
data source: sphere_zimpol_dark_img (QC1 database)
dataset: qc_median_iframe
median: 93.7567 ADU/h
fixed thresholds: 70...130 ADU/h
N_data plotted: 16
[click plot for closeup]
Plot 2 scores: 4 |
data source: sphere_zimpol_dark_img (QC1 database)
dataset: qc_median_pframe
median: 27.796 ADU/h
fixed thresholds: 5...50 ADU/h
N_data plotted: 16
[click plot for closeup]
Plot 3 scores: 4 |
data source: sphere_zimpol_dark_img (QC1 database)
dataset: qc_median_iframe
median: 70.8695 ADU/h
fixed thresholds: 40...100 ADU/h
N_data plotted: 16
[click plot for closeup]
Plot 4 scores: 4 |
data source: sphere_zimpol_dark_img (QC1 database)
dataset: qc_median_pframe
median: 20.6361 ADU/h
fixed thresholds: 5...40 ADU/h
N_data plotted: 16
[click plot for closeup]
Plot 5 scores: not implemented
data source: sphere_zimpol_dark_img (QC1 database)
dataset: qc_rms_iframe
median: 2.35659 ADU
thresholds: none
N_data plotted: 16
[click plot for closeup]
Plot 6 scores: not implemented
data source: sphere_zimpol_dark_img (QC1 database)
dataset: qc_rms_pframe
median: 2.41231 ADU
thresholds: none
N_data plotted: 16
[click plot for closeup]
Plot 7 scores: not implemented
data source: sphere_zimpol_dark_img (QC1 database)
dataset: qc_rms_iframe
median: 2.4748 ADU
thresholds: none
N_data plotted: 16
[click plot for closeup]
Plot 8 scores: not implemented
data source: sphere_zimpol_dark_img (QC1 database)
dataset: qc_rms_pframe
median: 2.28424 ADU
thresholds: none
N_data plotted: 16
[click plot for closeup]
This plot
This plot shows the optical CCD dark current values and RMS as derived from the
zimpol dark recipe for read mode StandardImaging. The recipe expresses dark values in units of the
used EXPTIME (here per 100 sec), the values in the plot are scaled to ADU/hour.
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