Twice a month multiple line transitions from the 3mm, 2mm and 1mm band are observed
in at least one of several calibration sources. The center line velocities, antenna
temperatures and velocity integrated antenna temperatures (Gaussian fits) are
then compared to previous results to check for consistency. Since monitoring of
the calibration sources tests the performance of the complete telescope system
its results are probably most relevant for the observer. However, this also means
that any deviations apparent can have several causes (pointing, wind and weather,
receivers) and thus only large, consistent deviations will be investigated in
detail.The latest results of the calibration monitoring is presented in the table
below. The observed sources are Orion KL, IRC+10216, M17SW and WB947.
