CARMA Memo #2 (=BIMA Memo #85)

CARMA Calibration Requirements
M. C. H. Wright
Radio Astronomy laboratory, University of California, Berkeley, CA, 94720

Abstract

This memo discusses the CARMA calibration requirements.  We list the
various calibrations needed including instrumental parameters which are
rarely changed, such as IF fiber and cable lengths, IF delay centers,
power levels, correlation coefficient corrections,  receiver and phase
lock tuning parameters, pointing parameters, receiver feed
and TV camera offsets

We calculate the sensitivities for calibration of the antenna gains and
bandpass for different sub-arrays of the CARMA antennas.

Errors in the pointing and primary beam illumination limit the image fidelity 
in mosaicing observations; these calibrations are discussed in some detail.

The calibration of atmospheric decorrelation, fast switching, and water
line radiometry are research projects which are important for the
success of CARMA and ALMA.

We briefly discuss single dish and phased array observations and calibrations