B1s Trial 7D Flags

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Notes

Shaye

  • Noticeable pointing drift on 3c84 as track progresses?
  • Affecting derived flux. Use 3c84 flux from other track?

Woojin

  • Gains from 3c84 getting larger by 15%. The last pointing in the track was done at 20:37 UT (~ 4:07 LST) toward 0423-013, which was before transit, while our target and gain calibrator (3c84) were after transit. It looks like it happened because 3c84 was still higher than 80 degree in elevation then.
  • I used the 3c84 flux of 19.2 Jy, which is shown at the beginning of the track and consistent with previous tracks. 3c111 got brighter (3.9 Jy).

obs

c0924I.1D_88B1S.7   6.8  A-
                               Comments:
                                NODE_NOT_FOUND
                                [2012-05-12 18:51]SM : C7 out of array. Excellent weather.
                               C22 shows some spikes in the tsys. Maybe because of clouds.

Flags

Shaye

select='ant(22),time(21:03:20,21:42:12.5)' #tsys spikes
select='ant(22),time(23:56:58,00:05:36)' #tsys spikes
select='ant(21),time(19:48:00,19:55:00.0)' #noisy phase
Having trouble getting good phase calibration with mfcal. Need to use selfcal for some reason. 
  This is coming into play in the last 2-3 hours of the data having bad phase solutions.

Woojin

select='ant(21),time(19:49:50,19:52:54)' #high gain point


Katherine

select=ant(18)(22),win(1)  # noisy data
select=ant(18)(22),win(4)  # noisy data
select=ant(1,3,21),time(19:35:00,19:45:00) # high amp gain
select=ant(13,6),time(00:40:00,00:50:00)   # high amp gain
*NOTES: C18 and C22 are noisy

Needs resolution

select=ant(13,6),time(00:40:00,00:50:00)   # high amp gain
select=ant(1,3,21),time(19:35:00,19:45:00) # high amp gain
select='ant(22),time(21:03:20,21:42:12.5)' #tsys spikes
select='ant(22),time(23:56:58,00:05:36)' #tsys spikes
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