MAMBO observations on Absorber: How to proceed
Ideally the measurements should be done with the moving telescope to be as close as possible in the observation condition, i.e. to have also the same synchronization signals as during real on-sky observations.
The absorber should lie on the ABBA rack and it has to be moved into the entrance window by hand.
> Pick-up a source at the requested elevation (see XEphem) pako> source G34.3 /grep /cat ihet >>> G34.3 EQ 2000 18:53:18.56 +01:14:58.2 LSR 0.0 FLUX 19.90 0.0 PROJECT CALIB pako> source ABSORBER EQ 2000 18:53:18.56 +01:14:58.2 LSR 0.0 FLUX 19.90 0.0 PROJECT CALIB > After this, test the different observing modes with different parameters: pako> onf 8 80 pako> onf 20 40 pako> bmap 360 360 5 6 pako> bmap 360 290 5 6 pako> ...
The observations needed should be mainly onf 8 80, but longer scans, and other observing modes should be also tried. JP recommended to set the wobbler throw to 40 to avoid putting to much stress on the wobbler itself.
Note that the ABSORBER test must be done with a wind speed lower than ~14 m/s.