Following will be the PDif compressions noted from going onto the
Crab, defined as:
PDif(Crab)/PDif(cold sky) * 100
Acccuracy is the determination is about 1%.
Here is L-band. Crab (Taurus A, 3C144) adds about 70K to the system
temperature.
Antenna A B C D
------------------------------------------------------------
01 91 95 93 92
02 92 92 88 81
03 96 94 84 91
04 85 87 83 87
05 out
06 98 94 93 98
07 98 98 99 97
08 92 97 97 94
09 95 95 95 99
10 out
11 99 97 99 99
12 96 97 96 97
13 98 101 85 86
14 99 95 97 96
15 100 99 95 99
16 96 93 95 95
17 100 100 98 100
18 101 99 97 97
19 very noisy SY data... see below
20 98 91 93 92
21 99 99 100 98
22 92 90 88 92
23 84 93 87 91
24 88 88 98 95
25 98 98 99 100
26 94 93 96 94
27 out
28 101 99 bad data bad data
--------------------------------------------------------------------------
Notes:
1) ea19's SY data on all four IFs are very poor -- the scatter in
the switched power numbers is larger than the mean value (typically, it
is about 1 to 2% of the mean value).
2) ea28, on LCP is not providing good SY data. This has always
been the case.