Ganga et al. use data from the 170 GHz channel of the balloon-borne FIRS (Far Infrared Survey) experiment to constrain CMBR anisotropy.
The FWHM of the beam, assumed to be gaussian, is
. The zero-lag window function is
The first column in the window function
is , which runs
from 2 to 130. The second column is .
The quoted bandtemperature values are from Bond, with 7% added in quadrature
to his statistical 1 error bars to account for the FIRS 1
Link to the experiment webpage.
J.R. Bond, ``Signal-to-Noise Eigenmode Analysis of the Two-Year COBE Maps",
Phys. Rev. Lett. 74, 4369 (1995).
K. Ganga, E. Cheng, S. Meyer, and L. Page, ``Cross-Correlation Between the
170 GHz Survey Map and the Differential Microwave Radiometer First-Year
Maps", Astrophys. J. Lett. 410, L57 (1993).
K. Ganga, L. Page, E. Cheng, and S. Meyer, ``The Amplitude and Spectral Index of the Large Angular Scale Anisotropy in the Cosmic Microwave Background Radiation", Astrophys. J. Lett. 432, L15 (1994).