VS13C Results
Submitted checklist.txt and checklist.tex is also available |
[Summary | AIPS | Difmap ] |
Observation code | : | VS13C | AIPS Version | : | 31DEC00 | ||
Date of Observation | : | 2002/291 | Difmap Version | : | 2.4a | ||
Source Name | : | J1949-19 | vsop_difmap used | : | No | ||
Calibration Source(s) | : | j1924-29 | |||||
Ground telescopes | : | MP HO KA SH | Model Fitted to data | : | Yes | ||
Tracking Station(s) | : | UZ | Image made | : | No | ||
Correlator | : | Mitaka |
Abstract
Delays imply that the position is wrong. I believe the position used is not that in VSOP survey & prelaunch papers. No Halca. |
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FITLD | clint = 0.25 digicor = -1 delcorr = -1 |
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INDXR | cparm = 0, 0, 0.25; |
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ANTAB | infile='antab.txt' |
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APCAL |
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ACCOR | solint 5 |
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CLCAL | refant=3; |
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Amplitude calibration solutions applied. Mop as ref |
TACOP |
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CLCOR | opco 'sbdl';ante 2;clcor 375,375,0;ante 4;clcor 130,130,0 |
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Same sign as DQA, if 2nd antenna. Opposite to FRING value |
FRING | docal 1;dparm 2,200,200,0.5,0;aparm(7)=0.5;solint 5 |
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flagver -1 again. Why is this? |
SNSMO | bparm 1/12;cparm 0 0 0.5 0.5 0 0 0 10 0 |
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smooth out the bad ones |
SNEDT |
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remove one bad solution (lost coherence?) from Shanghai | |
CLCAL | refant=3; |
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SPLIT | aparm(1)=2 0; |
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Av within IF: Cal source for position offset. |
FITTP |
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Data written out for analysis in Difmap |
AIPS Input Files
ANTAB.TXT | Comments - None - |
AIPS Output Files
Phase selfcal applied? | Yes |
Global amplitude selfcal (gscal) applied? | No |
Amplitude selfcal on non-global timescales used? | No |
Modelfit made and saved? | Yes |
Image Made and saved? | No |
Comments on Difmap processing
GRT only. |
Modelfit | ||||
Ampl, Phase vs (u,v) Distance PS (22 kb) JPEG (37 kb) |
Ampl, Phase vs Time PS (127 kb) JPEG 1, 2 |
(u,v) Coverage PS (20 kb) JPEG (26 kb) | Closure Phase vs Time PS (104 kb) JPEG 1 |
Image with model components PS (825 bytes) |
More details on the Images and Modelfits are found in this page.