Table of Contents
vc160
Correlation notes
Output files:
| File name | Description | Start date, UT range | Polarizations | # subbands (AIPS IFs) | Bandwidth per IF (MHz) | Spectral channels per IF/pol | Corr. int. time (s) |
|---|---|---|---|---|---|---|---|
| VC160.0.FITS | 2011-11-14, 0/14:09:21 - 0/16:59:59 | RR LL RL LR | 2 | 16.0 MHz | 64 | 2.0 |
Analysis notes
This was a test of the Ceduna phase problem to see if the maser was at fault. The maser was swapped out for a rubidium to compare performance:
14:45 - 15:30 Ceduna records with the H maser
15:45 - 16:40 Ceduna records with the Rubidium
16:50 - 17:00 Ceduna records with the H maser again.
It turns out that there was no phase problem during the experiment when using the maser so this was not a useful time to do the test. It is also noted that the phase with the rubidium was very poor (coherence time much less than a minute), so it is doubtful that anything would have been learned even if the phase problem had been occurring during the experiment. Fingers crossed that recent maintenance has fixed the problem…
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Plots of uncalibrated amplitude and phase against frequency
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Plots of uncalibrated amplitude and phase against time
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Amplitude corrections from ACCOR
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Plots of Amplitude and phase against frequency with fringe-fit solutions applied
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Plots of Amplitude and phase against time with fringe-fit solutions applied
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