X Band VLA/VLBA Polarization Calibration Database 2006


Data in this table was reduced automatically in AIPS. Use caution when interpreting variations in quantities.

Follow links on Source/Band headings for Postscript plots.

Quantities displayed:
Flux - from SETJY (1995.2) or GETJY, to use in SETJY.
I Peak - peak I flux in map (mJy/beam).   P Peak - polarized flux at I Peak (mJy/beam).   %POL - PPeak/IPeak in percent.
PHAS - R/L Phase Difference (degrees) to use in CLCOR, also twice the EVPA on-sky.   Of course, beware of sources with low (<0.5%) polarization.  

X BAND
SOURCE @ DATE Flux   Jy I Peak   mJy P Peak   mJy %POL   PHAS   deg CAL


0136+478 X BAND
0136+478 D 20060113 2.406 ± 0.001 2405.80 ± 0.80 29.42 ± 0.60 1.22 ± 0.03 -79.03 ± 0.22 0137+331
0136+478
MEAN 2.406 ± 0.001 2405.80 ± 0.80 29.42 ± 0.60 1.22 ± 0.03 -79.03 ± 0.22 ---


0137+331 X BAND
0137+331 D 20060113 3.154 ± 0.000 3137.97 ± 10.09 168.96 ± 1.04 5.38 ± 0.02 -138.00 ± 0.00 0137+331
0137+331
MEAN 3.154 ± 0.000 3137.97 ± 10.09 168.96 ± 1.04 5.38 ± 0.02 -138.00 ± 0.00 ---


0238+166 X BAND
0238+166 D 20060113 2.760 ± 0.004 2759.37 ± 4.14 33.11 ± 0.58 1.20 ± 0.02 -122.76 ± 2.25 0137+331
0238+166
MEAN 2.760 ± 0.004 2759.37 ± 4.14 33.11 ± 0.58 1.20 ± 0.02 -122.76 ± 2.25 ---


0359+509 X BAND
0359+509 D 20060113 7.277 ± 0.007 7275.65 ± 7.90 55.20 ± 0.08 0.76 ± 0.00 -161.56 ± 1.69 0137+331
0359+509
MEAN 7.277 ± 0.007 7275.65 ± 7.90 55.20 ± 0.08 0.76 ± 0.00 -161.56 ± 1.69 ---


1743-038 X BAND
1743-038 D 20060113 6.154 ± 0.007 6152.45 ± 4.40 53.42 ± 1.41 0.87 ± 0.02 -16.94 ± 0.94 0137+331
1743-038
MEAN 6.154 ± 0.007 6152.45 ± 4.40 53.42 ± 1.41 0.87 ± 0.02 -16.94 ± 0.94 ---


1751+096 X BAND
1751+096 D 20060113 1.538 ± 0.004 1537.23 ± 3.92 19.60 ± 0.28 1.27 ± 0.02 -36.21 ± 3.16 0137+331
1751+096
MEAN 1.538 ± 0.004 1537.23 ± 3.92 19.60 ± 0.28 1.27 ± 0.02 -36.21 ± 3.16 ---


1924-292 X BAND
1924-292 D 20060113 12.599 ± 0.023 12597.36 ± 20.39 192.37 ± 0.43 1.53 ± 0.00 75.87 ± 1.70 0137+331
1924-292
MEAN 12.599 ± 0.023 12597.36 ± 20.39 192.37 ± 0.43 1.53 ± 0.00 75.87 ± 1.70 ---


2136+006 X BAND
2136+006 D 20060113 8.715 ± 0.004 8713.78 ± 8.01 187.70 ± 0.05 2.15 ± 0.00 43.85 ± 0.14 0137+331
2136+006
MEAN 8.715 ± 0.004 8713.78 ± 8.01 187.70 ± 0.05 2.15 ± 0.00 43.85 ± 0.14 ---


2202+422 X BAND
2202+422 D 20060113 4.861 ± 0.004 4860.69 ± 3.93 197.06 ± 1.03 4.05 ± 0.02 -17.48 ± 0.89 0137+331
2202+422
MEAN 4.861 ± 0.004 4860.69 ± 3.93 197.06 ± 1.03 4.05 ± 0.02 -17.48 ± 0.89 ---


2253+161 X BAND
2253+161 D 20060113 10.050 ± 0.014 10040.28 ± 0.20 202.14 ± 0.81 2.01 ± 0.01 1.43 ± 2.90 0137+331
2253+161
MEAN 10.050 ± 0.014 10040.28 ± 0.20 202.14 ± 0.81 2.01 ± 0.01 1.43 ± 2.90 ---


2355+498 X BAND
2355+498 D 20060113 0.902 ± 0.001 901.80 ± 1.82 0.17 ± 0.21 -2.18 ± 2.22 -10.43 ± 85.99 0137+331
2355+498
MEAN 0.902 ± 0.001 901.80 ± 1.82 0.17 ± 0.21 -2.18 ± 2.22 -10.43 ± 85.99 ---

Table Notes:

Flux set in SETJY shown with ± 0.

I Peak and P Peak quantities measured at peak in IPOL image. Watch for resolution effects due to configuration changes. Beware of calibration offsets for all sources in a date.

Values shown as X ± Y with X the average of IF 1 and 2 and Y half the difference between IF 1 and 2. Note 0137+331 and 1331+305 used as polarization angle references where Y = 0.0. Other entries with error of 0.0 have only a single usable IF in the data.

Statistical data for MEAN ± STDEV. Divide STDEV by SQRT N to get error in MEAN.


This file automatically generated on Tue Jun 6 05:38:31 MDT 2006