first phase of the Medium-Scale Anisotropy Measurement
(MSAM1) is completed. It probed CMBR anisotropy
at 0.5 degree angular scales between 5 and 23 icm
(150 and 700 GHz, 0.4 and 2.0 mm). Fluctuations
at these angular scales are believed to be the precursors
of the largest structures we observe today.
first flight of this package (MSAM1-92 : June 1992
from Palestine, TX) resulted in a detection of 0.5
x 10-5 <dT/T< 2 x 10-5.
The second flight (MSAM1-94 : June 1994 from Palestine,
TX) observed the same region of sky and produced
a measurement in statistical agreement with the