| VS11V1 Results
Submitted checklist.txt and checklist.tex is also available |
[Summary | AIPS | Difmap ] |
| Observation code | : | VS11V1 | AIPS Version | : | 31DEC00 |
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| Date of Observation | : | 2002/268 | Difmap Version | : | 2.4a | |||
| Source Name | : | J0607+6720 | vsop_difmap used | : | No | |||
| Calibration Source(s) | : | J0217+73 | ||||||
| Ground telescopes | : | KA,SH | Model Fitted to data | : | Yes | |||
| Tracking Station(s) | : | UZ | Image made | : | Yes | |||
| Correlator | : | Mitaka |
| Abstract
Great effort to find the space fringes. Simple structure detected. |
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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=1; |
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Amplitude calibration solutions applied. SH as ref |
| CLCOR | opcode 'gain';antenna 0;clcorprm 1.063,0 |
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| FRING | docal -1; dparm 1,0,0,0.5,0;aparm(7)=0.1;solint 5,10,15 |
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Full range searched |
| SNCOR | opc 'zdel','zrat','zphs';ante 3 |
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Zero the Halca sols. |
| CLCAL | interpo 'ambg' |
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GRT sols. |
| FRING | dofit 3;aparm(5)=1;solint 5; |
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Full range searched, IFs combined |
| FRING | dofit 3;aparm(5)=1;dparm 2,512,96,0.5,-1,0 |
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Try a small range |
| SEDT/TACOP/SNCOR | ante 3;snver 8;opc 'zphs'/'zdel' snver 9;opc 'zphs'/'zrat' |
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Separate out delay & rates |
| CLCAL | interpo 'poly';intp 2 0;interp 'ambg' |
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| FRING/KRING | dparm 2 100 50 0.5;cparm dparm |
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| CLCAL | interp 'ambg' |
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Would like to smooth the delays, but CLSMO does rate & delay. Scatter is ~ 10nsec which is 2% loss. |
| CALIB | solm 'p';aparm(5)=1;solint 10/20 |
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| CLCAL |
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| SPLIT | aparm(1)=2 0; |
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Av within IF. Gainu 4 for the cal source |
| FITTP |
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Data written out for analysis in Difmap |
AIPS Input Files
| ANTAB.TXT HISTORY.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? | Yes |
| Comments on Difmap processing
J0217+73 matches in flux to prelaunch. J0607+67 is best fit with two point sources. 5 minute selfcal. Gaussain (+point) is also possible, but the cleaned image and the model image match best (i.e. the two point sources). However the component positions for PLS and pt+Gaussian are the same. |
| Image | ||||
| Ampl, Phase vs (u,v) Distance PS (20 kb) JPEG (37 kb) |
Ampl, Phase vs Time PS (65 kb) JPEG 1, 2 |
(u,v) Coverage PS (12 kb) JPEG (25 kb) | Closure Phase vs Time PS (44 kb) JPEG 1 |
Clean Image PS (32 kb) JPEG (47 kb) |
| Modelfit | ||||
| Ampl, Phase vs (u,v) Distance PS (17 kb) JPEG (36 kb) |
Ampl, Phase vs Time PS (62 kb) JPEG 1, 2 |
(u,v) Coverage PS (12 kb) JPEG (25 kb) | Closure Phase vs Time PS (43 kb) JPEG 1 |
Image with model components PS (825 bytes) JPEG (0 bytes) |
More details on the Images and Modelfits are found in this page.
