ABOUT LAMBDA

COBE

Cosmic Background Explorer/FIRAS

Product Name
GRT Weights For Raw IFGs
Mission
COBE/FIRAS

Description

This reference file sets relative weights of GRT's for instrument components to values determined by the calibration program that minimize the chi-square of the calibration model solutions. The implication of these relative weights is that the calibration of the GRT's has drifted since launch.

0.0	!XCAL GRT - A side		*** A SIDE ***
0.5	!Skyhorn GRT - A side
0.5	!Reference Horn GRT - A side
0.1	!ICAL GRT - A side
0.5	!Dihederal GRT - A side
0.5	!Bolometer RH - A side
0.5	!Bolometer RL - A side
0.5	!Bolometer LH - A side
0.5	!Bolometer LL - A side
0.0	!Mirror Mount GRT - A side
0.0	!Cal Res RH - A side
0.0	!Cal Res RL - A side
0.0	!Cal Res LH - A side
0.0	!Cal Res LL - A side
0.5	!XCAL S5 GRT - A side
0.5	!Collimator - A side

0.0	!XCAL GRT - B side		*** B SIDE ***
0.0	!Skyhorn GRT - B side
0.5	!Reference Horn GRT - B side
0.9	!ICAL GRT - B side
0.5	!Dihederal GRT - B side
0.5	!Bolometer RH - B side
0.5	!Bolometer RL - B side
0.5	!Bolometer LH - B side
0.5	!Bolometer LL - B side
0.0	!Mirror Mount GRT - B side
0.0	!Cal Res RH - B side
0.0	!Cal Res RL - B side
0.0	!Cal Res LH - B side
0.0	!Cal Res LL - B side
0.5	!XCAL S6 GRT - B side
0.0	!Collimator - B side

Back to Product Page

A service of the HEASARC and of the Astrophysics Science Division at NASA/GSFC
Goddard Space Flight Center, National Aeronautics and Space Administration
HEASARC Director: Dr. Alan P. Smale
LAMBDA Director: Dr. Eric R. Switzer
NASA Official: Dr. Eric R. Switzer
Web Curator: Mr. Michael R. Greason