BF072D reduction notes:

*** EVPA calibration still needed

BF072D on 18 Aug 2004 = day 231

Array name = 'VLBA    '   includes antennas:
           1:BR         2:FD         3:HN
           4:KP         5:LA         6:MK
           7:NL         8:OV         9:PT
          10:SC
refant=2

had to move TECOR files to $HOME

5 GHz
Step 1:  VIPSPIPE

3C279  timer 0 21 23 40 0 21 25 10 for fringe-fit
calsour '3c279','oq208','j1310+3220','J0854+2006',''
interp 'ambg'

Step 3:

2 strong sources didn't reach the thermal noise.  Changed
these into "E" code calibrators: 09785912 and 1645+410
used step3 models and then re-ran step 3.

15 GHz

3C279  timer 1 00 40 0 1 00 42 0 0 for fringe-fit

Step 4:
doitall

Step 5:

run and go step5

EVPA calibration based on questionable VLA monitoring data
from August 9 and Sep 19 -- yuck.

VLA measurements (converted to degrees)
J0854 4860     70  -23    3C279* 480 -84   J1310* 10 12
J0854 15000   100  -28    3C279* 350 -40   J1310* 50 112 ; extrapolated with sm

VLBA observables:
J0854 4860     89  89    3C279 363 22   J1310 9  -54 
   corr            68               74            66 ;  use +68   
J0854* 15000  147  20    3C279 178 -60   J1310 61 -5  
   corr           -48               20            -63  ; use -50

3C279 C4 at pixxy 139 121 is 79 degrees after all corrections at 5 GHz
3C279 C4 at pixxy 280 240 is 83 degrees after all corrections at 15 GHz

SPLIT out *.TBC2 and reimage

reload into AIPS with loadall, then do step5pall

Analysis:

09785912 
09825831 
09826065
1642+393 
1645+410 is polarized at 5 and 15
16903984 polarized at 15 GHz only