Plot ? |
Symb ? |
Source * |
Average ? |
Thresholds ? |
N_ data |
QC1 parameter |
Data downloads |
Remarks |
method |
value |
unit |
method |
value |
1 |
| QC1DB |
none |
|
mag |
none | |
239 |
ABMAGLIM |
this |
last_yr |
all
|
ABMAGLIM vs. exposure time, for ingested datacubes. 1a. SKY datacubes |
1 |
| QC1DB |
none |
|
mag |
none | |
214 |
ABMAGLIM |
this |
last_yr |
all
|
b. COMBINED_SKY datacubes |
|
2 |
o | QC1DB |
none |
|
mag |
none | |
88 |
ABMAGLIM |
this |
last_yr |
all
|
2a. Science SINGLE datacubes, crowded fields (negative background, HISTO_17<-20). |
2 |
| QC1DB |
none |
|
mag |
none | |
407 |
ABMAGLIM |
this |
last_yr |
all
|
b. Same, background OK. |
2 |
o | QC1DB |
none |
|
mag |
none | |
40 |
ABMAGLIM |
this |
last_yr |
all
|
c. Science COMBINED datacubes, crowded fields (negative background, HISTO_17<-20). |
2 |
| QC1DB |
none |
|
mag |
none | |
974 |
ABMAGLIM |
this |
last_yr |
all
|
d. Same, background OK. |
|
*Data sources: QC1DB: QC1 database; LOCAL: local data source
|
Plot 1 | data source: | muse_sci_combined (QC1 database) |
dataset: (numbers below apply to this dataset) | ABMAGLIM | |
average: | none |
thresholds: | none |
N_data plotted: | 239 |
[click plot for closeup] |
Plot 2 | data source: | muse_sci_combined (QC1 database) |
dataset: (numbers below apply to this dataset) | ABMAGLIM | o |
average: | none |
thresholds: | none |
N_data plotted: | 88 |
[click plot for closeup] |
This plot
This plot shows the relation between ABMAGLIM and the total exposure time for the MUSE datacube IDPs. The parameter
ABMAGLIM is defined by the data products standard as limiting magnitude of the background and is essentially measuring the
background noise.
The parameter is displayed in plot #1 for the SKY-based datacubes; in plot #2 for the OB-based final datacubes (SINGLE or COMBINED).
The plot #2 has both the SINGLE and COMBINED datasets split into the ones with negative background due to
crowded-field observations, and the "normal" ones with well-behaved background. The crowded-field observations have an over-subtracted background and
therefore a negative bias on the ABMAGLIM values which is clearly visible on the plots.
Check MUSE_DEEP datacubes here.
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
|