Atacama Pathfinder EXperiment APEX
SABOCA Calibration
MPIfR Bonn   ESO   Onsala Space Observatory

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Array parameters June 2012 (12/05-11/06)

SABOCA was cooled down at the end of the MPI run to be ready for the ESO time block in mid-May, starting on May 13th.

Main parameter file: saboca-2012-06.rcp

Individual scans

Scan #Date Parameter fileArray plotIndividual channel maps
36946 2012-05-30T00:10 Mars_36946_Saboca.rcp array_36946.pdf beams_36946.pdf
38752 2012-06-04T02:35 Mars_38752_Saboca.rcp array_38752.pdf beams_38752.pdf
38923 2012-06-04T23:47 Mars_38923_Saboca.rcp array_38923.pdf beams_38923.pdf
38925 2012-06-04T23:54 Mars_38925_Saboca.rcp array_38925.pdf beams_38925.pdf
40974 2012-06-11T09:01 Uranus_40974_Saboca.rcp array_40974.pdf beams_40974.pdf

Notes on individual channels

The 37 channels of SABOCA are working fine most of the time, but see the exceptions below.

Channel #Description
22 This channel is sometimes variable or even bad, i.e. shows very low signal. Verify the gain on your calibrators and the usability on your target data.
20, 21 These channels are bad in scan 38925 only. They show excess noise, a few times more than the astronomical signal. Verify signals and usability on your calibrators and target data.