Facilities > VLA > Proposing > VLA API wind > Monthly Conditions at the VLA

Monthly Conditions at the VLA

by Tony Perreault last modified Jun 23, 2017

The following plots show the fraction of time that was most suitable for observing in each VLA band for the one-year period September 2010—August 2011, according to the measured wind speed and API phase rms (opacity is not included).  Click any plot to enlarge it. The simultaneous requirements for wind speed and API phase rms used to create these plots correspond to the current table of values in the OPT:

Band4, P, LSCXKuKKaQ
API (deg) any < 60 < 45 < 30 < 15 < 10 < 7 < 5
Wind (m/s) any any any < 15 < 10 < 7 < 6 < 5

See also the Archival API Plots (monthly plots of API rms phase vs LST Sept 2010—Aug 2011)

January February March
Jan2011 Feb2011 Mar2011
April May June
Apr2011 May2011 Jun2011
July August September
Jul2011 Aug2011 Sep2010
October November December
Oct2010 Nov2010 Dec2010