Meteo Information

Content:

• Current situation:
  • Satellite Pictures
  • Links to other satellite pictures
• Forecast: ESO forecast for La Silla and Paranal
• Past info: ESO ambient condition database (since 1998), extinction (since 2001).
• Ephemerides (Sun & Moon tables, object visibility, airmass...)

A view of the south pacific region, updated every three hours, produced using the 4th channel of the satellite GOES8 centered at 10.7 microns.  The image on the right is a zoom of that shown below.  The dotted lines marks the latitude/longitude with a 2 degrees spacing.  From ESO Meteo's Satellite IR image
	click for full scale
Last GOES-8 image, centered on Chile, from University of Nottingham Site Location Map	click for full scale

• Animation of last 24h (java) from the weather channel.
• Wetter Online - Germany
• Meteosat images from Nottingham
• link to the image page
• South America pic.

FORECAST

PTW Forecasts at Paranal and La Silla

Precipitable Water Vapour and Cirrus Cloud Cover Forecasts

PAST INFO

• ESO Ambiant Conditions Database: This graphic interface lets you query the weather database for La Silla and Paranal since Aug.1998
• LOSSAM: Line of Sight Sky Absorption Monitor, i.e. "was the night photometric". Updated daily.
  • La Silla LOSSAM for last night,
  • Paranal LOSSAM for last night,
  • LSO and PO LOSSAM Archive.
• SCIDAR: Scintillometer experiment at La Silla.

Ephemerides

• Sun & Moon Tables for la Silla and for other sites.
• The Daily Almanac (by Brian Casey , using Skycalc by by John Thorstensen) gives all the info for a given night.
• Sun and Moon altitude and azimuth tables.
• Lots of info can also be found at the US Naval Observatory
• Not a link, but you may want to check out the great XEphem program, that can be called by running /home6/ohainaut/exec/xephem on kila; for more info on XEphem, go to its home page
• For specific objects: Object Seasonal Observability, and the Hourly Airmass Table (by Brian Casey, using Skycalc by by John Thorstensen)
• More tools and links at ESO's User Support Services and Tools page