MAX3 Gamma Ursae Minoris Documentation

The file "max3gu.dat" contains the Gamma Ursae Minoris observation binned data from the third flight of the Millimeter-wave Anisotropy eXperiment (MAX3). The analysis is described in detail in Gundersen et al. 1993, Ap. J. 413, L1.

There are three bands centered at 6, 9, and 12 cm-1. The 12 cm-1 band is included as a veto for interstellar dust; it should not be included in any CMBR analysis.

We have divided the data set into 9 time periods to minimize the effect of sky rotation. Rotation number in column 1 references each time period. Each of the 9 rotations is divided into 15 azimuth bins. The rotations are given sequentially in the data set.

There are 9 columns and 135 rows in the file. In column 3, positive is in the direction of positive azimuth. Temperatures are in antenna temperature difference units. To convert from antenna temperature differences to CMBR temperature differences, scale by

Band (cm-1) Scale
6 2.36
9 5.70
12 21.3

Column Description Number format
1 Rotation number real
2 Azimuth bin number real
3 Angle from center of scan (degrees) real
4 6 cm-1 band (microKelvin) real
5 6 cm-1 band variance (microKelvin) real
6 9 cm-1 band (microKelvin) real
7 9 cm-1 band variance (microKelvin) real
8 12 cm-1 band (microKelvin) real
9 12 cm-1 band variance (microKelvin) real
Please direct questions or comments to Josh Gundersen.