Position errors june10

16aug10

    The positions offsets for the various locations (A1-A6) were checked using the central dipole and the interim correlator. Crosses were done (+/- 3 hpbw) with a strip in azimuth followed by a strip in za (each one minute long). Data was taken 21jun10 thru 25jun10. All the data was taken with the single pol array. 2-d gauss fits were made to the crosses fitting for:
The plots show the az, za offsets from the fits (.ps) (.pdf):
Table of position offsets from beam A0 (on th sky in arc minutes).


Jun10 position offsets (Amin). used and corrected

A0
az,za
A1
az,za
A2
az,za
A3
az,za
A4
az,za
A5
az,za
A6
az,za
used
0.000,0.000
-4.374  -5.375 -6.289,1.829 -1.985,7.530 4.923,7.337 6.076,-1.019 2.218,-6.798
corrected

-4.274,-5.536
-6.146,1.627
-1.981,7.165
4.014,5.844
6.341,-1.111
2.301,-7.021




processing: x101/projects/byuPhAr/idl/cross/byuproccross_jun10.pro

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