mirror sites: PL (internal link) HQ     [?]

Health Check monitor

 

CAL | HC | refs | QC
HealthCheck Monitor
   HOME | UsersGuide
  sl icon ALL INSTRUMENTS
 
all KPI reports
XSHOOTER:
efficiency
Other HC:
QC links:
        [page auto-refreshes after 300 sec]   [stop | on]            [press Ctrl+Shift+R to enforce refresh of scores, dates and news]
XSHOOTER trending system: HEALTH CHECK report
HELP USERS-GUIDE MORE
Last update: 2023-02-05T22:39:23 (UT)
  | now: 2023-02-06T09:13:24 (UT) muc02 QC pipeline: xshoo-3.6.0 (installed 2022-03-21)
same group: efficiency response curvature
General news: NOTE: The Health Check and calChecker services will be moved to qcFlow in the course of 2023 on an instrument by instrument basis. The current pages will then not be updated any longer.
XSHOOTER news:  
Report news:
DATE*: [?] 2023-01-30
report | NLT
2023-01-31
report | NLT
2023-02-01
report | NLT
2023-02-02
report | NLT
2023-02-03
report | NLT
2023-02-04
report | NLT
2023-02-05
report | NLT
r...
Raw CAL displays:
raw raw raw raw raw raw raw
P...
CAL product quality:
products products products products products products products
 
transfer   ngas: error [?]

scores&comments | FULL | history ... | plot tutorial ... | contact | HC_docu... | quality events...               [?]
*Date on this monitor changes at 21:00 UT
png: Information and research:
- png file - advanced studies: QC1 browser | QC1 plotter
Plot
?
Symb
?
Source
*
Average ? Thresholds ? N_
data
QC1
parameter
Data
downloads
Remarks
method value unit method value
1 QC1DB MEDIAN 0.976 flux_ratio none  44 response_spec_a this | last_yr | all current response / reference response = a + b * (lam - lam0)
2 QC1DB MEDIAN 5.28e-05 1/nm none  44 response_spec_b this | last_yr | all current response / reference response = a + b * (lam - lam0)
3 QC1DB MEDIAN 1.02 flux_ratio none  44 response_spec_m_a this | last_yr | all current response / master response = a + b * (lam - lam0)
4 QC1DB MEDIAN 0.000123 1/nm none  44 response_spec_m_b this | last_yr | all current response / master response = a + b * (lam - lam0)
*Data sources: QC1DB: QC1 database; LOCAL: local data source
Plot 1
scores: not implemented
data source:xshooter_fluxeff
(QC1 database)
dataset:response_spec_a
median:0.976flux_ratio
thresholds:none 
N_data plotted:44
[click plot for closeup]
Plot 2
scores: not implemented
data source:xshooter_fluxeff
(QC1 database)
dataset:response_spec_b
median:5.28e-051/nm
thresholds:none 
N_data plotted:44
[click plot for closeup]
Plot 3
scores: not implemented
data source:xshooter_fluxeff
(QC1 database)
dataset:response_spec_m_a
median:1.02flux_ratio
thresholds:none 
N_data plotted:44
[click plot for closeup]
Plot 4
scores: not implemented
data source:xshooter_fluxeff
(QC1 database)
dataset:response_spec_m_b
median:0.0001231/nm
thresholds:none 
N_data plotted:44
[click plot for closeup]
This plot

This plot monitors the XSHOOTER response function. For this reason the response functions are compared to

  • a) a reference response functions acquired on 2015-10-25 and
  • b) the master response function which is a clean and weighted average of response functions with a certain validity range.

On 2015-10-25, the first flux standard star was acquired with the effmon template, meaning this observation was acquired under strict photometric conditions. The calibration product 'response function' from that date serves as a reference in the following. It is marked by a vertical red bar in the history plot.

The master response function once generated as a weighted and clean mean of response functions for the purpose to flux calibrate XSHOOTER science observations (internal data producs = IDPs) is a representative response function for a given time range. The comparison between the reference response function (from 2015-10-25, ARCFILE=XSHOO.2015-10-26T01:23...) and the current response function as well as the comparison between the master response and the current response is parameterized via

current(lambda) / reference(lambda) = a + b * (lambda - lambda_0 )

current(lambda) / master(lambda) = a + b * ( lambda - lambda_0 )

where lambda_0 is the center wavelength of the considered wavelength range, parameter a is the relative overall flux of the spectrum, corresponding to atmospheric variations and parameter b is a first order chromatic deviation (the slope between the reference(/master) and the current).

This plot shows both parameters a and b, of which parameter b is the important one.

On 2015-10-25, there is a=1 and b=0 by definition. The response function is a flat-fielded efficiency, hence the response function depends on the spectral shape of the flat field lamp, on long-term changes as well as on exchanges of the lamp. For this reason, dates of lamp exchanges are marked by blue vertical bars.

Notes:

  • UVB-arm: the D2 lamp illuminated orders [305 - 360] nm and the QTH lamp illuminated orders [370 - 500] nm are fit separately. The redest order of the QTH lamp illuminated orders is not used for the fit due no known variations of the dichroic.
  • VIS-arm: The bluest orders are not used for the fit due to known variations of the dichroic: [560 - 1020] nm.
  • NIR-arm: The full range is used for the fit [1000 - 2460] nm.
 
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