A bolometer array with 19 channels, built at the MPIfR, will be made available to external users for a period of 3--4 weeks
Each channel will have a sensitivity of 
mJy
s
under very good weather conditions and a HPBW of 11
.
The bolometer will normally be operated by wobbling at 2 Hz the secondary mirror in azimuth. As the array is fixed in Nasmyth coordinates, the orientation of the 19 beams with respect to the sky and to the chopping direction change with elevation. A special software will be made available at the telescope and in Granada for data reduction. In case the 19 channel bolometer would not be available, the MPIfR 7 channel bolometer would be offered.