There are a number of ways of determining VHS progress depending on the state of the data flow. Some are listed below. If you want to plot the current coverage one possible way is to use the status tables that are copied daily from ESO. The tables included queued observations. How to access these tables is explained below. There are also Progress reports submitted to ESO every 6 months.

• Survey progress based on VISTA Data Flow System (VDFS)  pipeline processing at  the Cambridge Astronomical Survey CASU:
  • Pipeline processing status (updated hourly)
  • Sky coverage progress for all VISTA surveys (updated monthly)
  • http://casu.ast.cam.ac.uk/vistasp/vhs
• VISTA Science Archive processing progress
  • Archive ingest and processing progress status
• Daily survey progress files copied from ESO are available here:
  • Observation status files
  • Current status file: http://www.ast.cam.ac.uk/~rgm/vhs/progress/data/current/179A2010.fits
  • There are FITS format and  ASCII csv files. The show current and scheduled observations and have a header record that describes the columns which can be read with the IDL code fragment

    			format="(a,l,f,a,a,a,a,f,f)"
    			readcol,infile,format=format, $
    			  run_id, ob_id, exectime, ob_status, ob_status_date, $
    			  ob_name, od_name, ra, dec, delimiter=';'
    
  • example for 2013-04-01: http://www.ast.cam.ac.uk/~rgm/vhs/progress/data/20130401/
  • 179A2010.csv and 179A2010.fits contain information about all OBS
  • 179A2010[A-H].[csv, .fits] are files showing the OB status for each  ESO observing period.