Plot ? |
Symb ? |
Source * |
Average ? |
Thresholds ? |
N_ data |
QC1 parameter |
Data downloads |
Remarks |
method |
value |
unit |
method |
value |
1 |
| QC1DB |
MEDIAN |
190.118 |
Pixels |
VAL | 189.6,190.4 |
60 |
hs_beamA1_X |
this |
last_yr |
all
|
BEAM A-ch 1 |
2 |
| QC1DB |
MEDIAN |
189.484 |
Pixels |
VAL | 189,190 |
60 |
hs_beamA2_X |
this |
last_yr |
all
|
BEAM A-ch 2 |
3 |
| QC1DB |
MEDIAN |
79.9713 |
Pixels |
VAL | 79.3,80.3 |
60 |
hs_beamA1_Y |
this |
last_yr |
all
|
BEAM A-ch 1 |
4 |
| QC1DB |
MEDIAN |
165.045 |
Pixels |
VAL | 164.3,165.3 |
60 |
hs_beamA2_Y |
this |
last_yr |
all
|
BEAM A-ch 2 |
5 |
| QC1DB |
MEDIAN |
190.282 |
Pixels |
VAL | 189.8,190.6 |
60 |
hs_beamB1_X |
this |
last_yr |
all
|
BEAM B-ch 1 |
6 |
| QC1DB |
MEDIAN |
189.657 |
Pixels |
VAL | 189,190 |
60 |
hs_beamB2_X |
this |
last_yr |
all
|
BEAM B-ch 2 |
7 |
| QC1DB |
MEDIAN |
80.7207 |
Pixels |
VAL | 80,81 |
60 |
hs_beamB1_Y |
this |
last_yr |
all
|
BEAM B-ch 1 |
8 |
| QC1DB |
MEDIAN |
165.799 |
Pixels |
VAL | 165,166 |
60 |
hs_beamB2_Y |
this |
last_yr |
all
|
BEAM B-ch 2 |
|
*Data sources: QC1DB: QC1 database; LOCAL: local text file
|
Plot 1 | data source: | midi_refpix (QC1 database) |
dataset: | hs_beamA1_X | |
median: | 190.118 | Pixels |
fixed thresholds: | 189.6...190.4 | Pixels |
N_data plotted: | 60 |
[click on plot for closeup] |
Plot 2 | data source: | midi_refpix (QC1 database) |
dataset: | hs_beamA2_X | |
median: | 189.484 | Pixels |
fixed thresholds: | 189...190 | Pixels |
N_data plotted: | 60 |
[click on plot for closeup] |
Plot 3 | data source: | midi_refpix (QC1 database) |
dataset: | hs_beamA1_Y | |
median: | 79.9713 | Pixels |
fixed thresholds: | 79.3...80.3 | Pixels |
N_data plotted: | 60 |
[click on plot for closeup] |
Plot 4 | data source: | midi_refpix (QC1 database) |
dataset: | hs_beamA2_Y | |
median: | 165.045 | Pixels |
fixed thresholds: | 164.3...165.3 | Pixels |
N_data plotted: | 60 |
[click on plot for closeup] |
Plot 5 | data source: | midi_refpix (QC1 database) |
dataset: | hs_beamB1_X | |
median: | 190.282 | Pixels |
fixed thresholds: | 189.8...190.6 | Pixels |
N_data plotted: | 60 |
[click on plot for closeup] |
Plot 6 | data source: | midi_refpix (QC1 database) |
dataset: | hs_beamB2_X | |
median: | 189.657 | Pixels |
fixed thresholds: | 189...190 | Pixels |
N_data plotted: | 60 |
[click on plot for closeup] |
Plot 7 | data source: | midi_refpix (QC1 database) |
dataset: | hs_beamB1_Y | |
median: | 80.7207 | Pixels |
fixed thresholds: | 80...81 | Pixels |
N_data plotted: | 60 |
[click on plot for closeup] |
Plot 8 | data source: | midi_refpix (QC1 database) |
dataset: | hs_beamB2_Y | |
median: | 165.799 | Pixels |
fixed thresholds: | 165...166 | Pixels |
N_data plotted: | 60 |
[click on plot for closeup] |
This plot
The reference pixels of MIDI are the two pixels of the detector onto
which the centroids of the target images must fall in order to ensure a
proper beam overlap. They are measured using the center of a pinhole,
in the 3 set-ups OPEN, HIGH_SENS and SCI_PHOT, for telescopes beams A
and B feeding MIDI, for the interferometric channnels 1 and 2 of MIDI,
and for the photometric channels PA and PB of MIDI (in SCI_PHOT only).
General information
Click on any of the plots to see a close-up version.
The latest date is indicated on top of the plot, data points belonging to that date are specially marked.
If configured,
- 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
|