The first observing mission of APACHE96 is to be considered successfully for many reasons. The instrument performances were satisfactory and many hours of observations were collected. Site quality at Dome C was tested for the first time and showed some promising characteristics, especially for those which concerns the atmospheric turbulent emission. A careful analysis of data will give useful informations for future programs of large telescope on the Antarctic Plateau.
Some improvements will be considered for next missions. We are planning an improved photometer, with more sensitive detectors. The front-end electronics will take advantage of a more sophisticated unit and a new on-site calibration system will be implemented.
We plan to deploy APACHE96 at the Tenerife observing site (Canary Islands) in the next future, to obtain accurate calibrations of the system by observing millimetric reference sources, such as planets and the moon. A pointing system will be used to this aim. A complementary experiment, also to be installed in Tenerife, has been realized by the Te.S.R.E. group in Bologna. This experiment, TOM (an acronym for Millimetric Wavelengths Telescope), is a 1-meter, 5-mirrors telescope, with pointing and tracking capabilities. The first focal plane instrument is a 3-channel bolometric photometer. The two instruments, APACHE96 and TOM, will perform correlated observations of the CMBR. It is also planned to test HEMT receivers with these two experiments.