Return to Memolist

MMA Memo #37
Atmospheric Opacity at the VLA (Scientific Memorandum No. 157)

J.M. Uson (NRAO)

1986/02


Atmospheric measurements made with the VLA at 22.25 GHz gave opacities in the range t= 0.13 ( with a heavy overcast sky) to t = 0.04 (with clear sky). Measurement at 225 GHz done with a chopper - wheel tipping radiometer are described as well. Some sources of systematic errors are discussed.


View a pdf version of MMA Memo 37.



Last modified: 2002-01-23

alma-memos@nrao.edu