| VS08m Results
Submitted checklist.txt and checklist.tex is also available |
[Summary | AIPS | Difmap ] |
| Observation code | : | VS08m | AIPS Version | : | 31Dec00 |
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| Date of Observation | : | 2001/221 | Difmap Version | : | 2.3c | |||
| Source Name | : | J0348-27 | vsop_difmap used | : | Yes | |||
| Calibration Source(s) | : | J0423-01 | ||||||
| Ground telescopes | : | Mp, Cd, Sh | Model Fitted to data | : | Yes | |||
| Tracking Station(s) | : | UZ | Image made | : | Yes | |||
| Correlator | : | Penticton |
| Abstract
Data extraction from experiment W059a2. |
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| FITLD | DIGICOR=DELCOR=-1 |
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Output file name = VS08M.FITLD |
| MSORT |
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Input file name = VS08M.FITLD, Output file name = VS08M.UVSRT | |
| FIXWT |
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Not done. | |
| INDXR | CPARM(1)=3 CPARM(2)=60 CPARM(3)=0.25 |
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No CSEs. Created NX(1) |
| ANTAB |
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For Halca used a Tsys of 88K, 92K. Used nominal Tsys and DPFU values for the Cd, Se, and Mp. I found "tsys" values for Cd, but it wasn't clear whether they were SEFDs, or SEFDs multiplied by some factor, so just used nominal values instead. | |
| APCAL |
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Input: Ty(1) + GC(1) | |
| UVFLG | OPCODE = REAS REASON 'NO PRC/LOW DVAL' |
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Unflagged the NO PRC/LOW DVAL data... as per the piletter most of this data is probably ok. |
| CLCAL | OPCODE = CALP INTERPOL = 'AMBG' REFANT 5 (Mp) |
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Used Mp as refant since it had the most "good" solutions in the Penticton DQA1 report (especially to Halca). |
| TBOUT | INEXT = 'AN' |
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| TBIN |
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Changed MNTSTA entries in the AN table. Changed Halca from 3 to 2, and changed all other antennas to 0. | |
| TBIN |
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Read in DQA1 delay and rate solutions using antenna 5 (Mp) as the reference antenna. | |
| SNEDT |
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Minor editting of DQA1 solutions. | |
| CLCAL | OPCODE = CALP INTERPOL = 'AMBG' REFANT 5 |
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| FRING | DOCALIB 1 GAINUSE 3 TIMER 0 SOLINT 5 REFANT 5 (Mp) SEARCH 2,6 APARM(1)=2 APARM(7)=3 (SNR=3) DPARM(1)=3 (include baseline stacking) DPARM(2)=50 (50 ns delay window) DPARM(3)=20 (20mHz rate window) DPARM(4)=0.5 DPARM(5)=0 DPARM(6)=1 |
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Solutions looked great. |
| SNEDT |
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Minor editting. | |
| CLCAL | OPCODE='CALP' INTERPOL = 'AMBG' SMOTYPE = '' REFANT 5 |
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| CLCOR |
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Since this experiment was correlated on Oct 16/01, no corrections for the correlator need be applied. | |
| SPLIT | SOURCES 'J0348-27','J0423-01' DOCALIB 1, GAINUSE 4 |
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Input file: VS08M.UVSRT, Output file: J0423-01.VS08M,J0348-27.VS08M |
| FITTP |
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Input files: J0423-01.VS08M,J0348-27.VS08M Output files: J0423-01.FITS,J0348-27.FITS amplitude |
AIPS Input Files
| ANTAB.TXT INDXR.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
Did not use gscale. Had to use a uv-taper to pick up the power on the short baselines. |
| Image | ||||
| Ampl, Phase vs (u,v) Distance PS (39 kb) JPEG (41 kb) |
Ampl, Phase vs Time PS (133 kb) JPEG 1, 2 |
(u,v) Coverage PS (22 kb) JPEG (28 kb) | Closure Phase vs Time PS (102 kb) JPEG 1 |
Clean Image PS (39 kb) JPEG (46 kb) |
| Modelfit | ||||
| Ampl, Phase vs (u,v) Distance PS (39 kb) JPEG (41 kb) |
Ampl, Phase vs Time PS (132 kb) JPEG 1, 2 |
(u,v) Coverage PS (22 kb) JPEG (28 kb) | Closure Phase vs Time PS (101 kb) JPEG 1 |
Image with model components PS (37 kb) JPEG (40 kb) |
More details on the Images and Modelfits are found in this page.
