mirror sites: PL HQ

Health Check monitor
 
[an error occurred while processing this directive]
        [page auto-refreshes after 300 sec]   [stop | on]            [press Ctrl+R to enforce refresh of scores and dates]
VIRCAM trending system: HEALTH CHECK plot
Last update: 2011-11-21T21:37:53 (UT)
| now: 2012-05-26T09:03:20 (UT)
HELP USERS-GUIDE MORE
same group: IQ_vs._DIMM_NB118 IQ_vs._DIMM_Z IQ_vs._DIMM_Y IQ_vs._DIMM_J IQ_vs._DIMM_H IQ_vs._DIMM_K
General news:
Report news:  
DATE*: [?] 2012-05-19
report | NR 		2012-05-20
report | NR 		2012-05-21
report | NR 		2012-05-22
report | NR 		2012-05-23
report | NR 		2012-05-24
report | NR 		2012-05-25
no data | NR
P...
Product quality:
products products products products products products no products
  no OPSLOG data  

scores&comments | history ... | plot tutorial ... | contact                 daily/often; important to check     [?] 		*Date on this monitor changes at 21:00 UT
Print: Information and research:
- png file - advanced studies: QC1 browser | QC1 plotter
Plot
?		 Symb
?		 Source
*		 OPS?
**		 Average ? Thresholds ? N_
data		 QC1
parameter		 Data
downloads		 Remarks
method value unit method value
1 •QC1DB no MEDIAN 0.86311 arcsec none   18 dimm_corr this | last_yr | all difference between Image Quality and DIMM seeing (arcsec)
2 •QC1DB no none   arcsec none   18 qc_iq_corr this | last_yr | all Image Quality vs DIMM seeing with 1:1 line overplotted (arcsec)
*Data sources: QC1DB: QC1 database; LOCAL: local text file | **OPS: to indicate that OPSLOG data are included
Plot 1
scores: not implemented
data source:vircam_photstd
(QC1 database)
dataset:dimm_corr•
median:0.86311arcsec
thresholds:none 
N_data plotted:18
[click on plot for closeup]
Plot 2
scores: not implemented
data source:vircam_photstd
(QC1 database)
dataset:qc_iq_corr•
average:none
thresholds:none
N_data plotted:18
[click on plot for closeup]
This plot

Trending plot for image quality and DIMM.

Image quality is the QC parameter obtained from photometric standard star observations by the data reduction pipeline for each detector and is then averaged over 16 detectors.
DIMM is derived from the seeing monitor located on Paranal summit, 1.5 km away from VISTA peak.

Name:
Fits header: QC.IMAGE_SIZE, TEL.FWHM.START
QC1 DB: qc_image_size, dimm, dimm_corr

Description:
Comparison between DIMM (seeing in the V-band at zenith measured at 1.5 km distance on Paranal peak, but transformed to wavelength and airmass of observation) and the image quality (what is measured on the science detectors).

Setup:
INS.FILT1.NAME = Ks

These plots describe:
Fig. 1. trending of DIMM_corrected: The DIMM value are given for 500nm and zenith (airmass = 1). To be compared with the image quality of VISTA and VIRCAM, the DIMM values are transformed for observation wavelength, observation airmass and the turbulence outer scale (L0 = 22m).
Fig. 2. IQ against DIMM_corr: Image quality against DIMM values (corrected for airmass, wavelength and L0).

Find more information on the VIRCAM STD tutorial page.

 

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