See the 2010-12-09 meeting minutes for background on this issue. In summary, there has been some recent work on the problem of finding viable amplitude calibration sources which will allow ALMA to meet its absolute amplitude calibration specification. See the amplitude calibration source wiki page for further information. This work has resulted in a renewed focus on the potential for giant stars as flux calibration standards. It would be useful to get an update from AIV/CSV regarding progress on the plan submitted by Martin Cohen and Jeff Mangum to conduct test measurements of some of the brighter giant stars.
Asteroids: LeonardoTesti notes that there is an asteroid monitoring project being carried-out at APEX. Goal is to study light curves.Richard Hills notes that Planck characterization of planetary fluxes will provide useful input to use of planets as absolute flux calibrators.
Acceptance: LeonardoTesti notes that a successful acceptance meeting was held for this device. A few AIs to contend with, but no major problems raised. Need now to figure out how to use these measurements in the ALMA system.