| VS05Z Results
Submitted checklist.txt and checklist.tex is also available |
[Summary | AIPS | Difmap ] |
| Observation code | : | VS05Z | AIPS Version | : | 31DEC99 |
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| Date of Observation | : | 1999/203 | Difmap Version | : | 2.3c | |||
| Source Name | : | J1118-46 | vsop_difmap used | : | No | |||
| Calibration Source(s) | : | J1127-18 | ||||||
| Ground telescopes | : | HH,SH,HO,MP | Model Fitted to data | : | Yes | |||
| Tracking Station(s) | : | RZ | Image made | : | No | |||
| Correlator | : | Penticton |
| Abstract
Model fit to GRTs shows that the source would have been << 0.1 Jy on all space baselines, so it'd not have been possible to fringe fit (and nor was it). The 0.5 degree pointing error just makes this worse! |
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| FITLD | douvcomp = 1; clint = 0.25 ; digicor = -1; delcorr = -1 |
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Created VS07U.UVDATA.1 |
| MSORT |
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| INDXR | cparm = 0, 0, 0.25 |
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No INDXR.TXT |
| ANTAB |
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used logs2keyin.pl | |
| APCAL |
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PL #1 & #2 are AMP plots | |
| CLCAL | refant=1;opcode='calp';smotyp='ampl';interpol='box';intp=0.25; |
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Hartz ref. Amplitude calibration and smoothing applied. |
| TACOP |
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Copy CL tables | |
| CLCOR | antennas=2,0;opcode='sbdl';clcorprm antennas=3,0;opcode='sbdl';clcorprm antennas=5,0;opcode='sbdl';clcorprm |
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Delay correction for VSOP from DQA, referenced to Hartz. No VSOP fringes |
| KRING | cparm 0.5,400,100,0.1,0;refant=1/3; solint 5;SOLTYPE 'NOLS' |
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Kring parms changed again! No LSS. |
| Fring | dpmar 2 512 64 0; solint 10 |
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See if fring can find fringes in the mid of experiment. Fring does a much better job. But I also swapped refant to Hob. No VSOP fringes. |
| CLCAL | interpol 'ambg';intparm=0;smotype='VLBI'; opcode='CALP';refant 3 |
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| POSSM | timer 0 17 0 0 0 17 30 0; solint 10 |
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Check the Pass band over 30 mins. |
| UVFLG | antenna 5,0;bchan 1;echan 20; |
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remove bottom 20 chans of Shanghi. |
| TACOP |
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Copy CL tables | |
| CLCOR | antennas=1,0;opcode='gain';clcorprm antennas=2,0;opcode='gain';clcorprm antennas=3,0;opcode='gain';clcorprm antennas=5,0;opcode='gain';clcorprm |
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Amp correction from difmap |
| SPLIT | aparm(1)=2; |
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Av within IF (new AIPS) |
| FITTP |
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All three sources written out for analysis in Difmap |
AIPS Input Files
| ANTAB.TXT | Comments HALCA pointing error possible, about 0.5 degree? No fringes found in the DQA report - not even weak ones. No fringes found by FRING or KRING. FRING did much better than KRING in the center of the obs. Didn't have time to see if it was parms selected or the routine. |
Additional Files
| Name | Description |
| SUR_5Z.0JP | Survey run file. Needed to add a OUTD IND |
AIPS Output Files
| Phase selfcal applied? | Yes |
| Global amplitude selfcal (gscal) applied? | Yes |
| Amplitude selfcal on non-global timescales used? | No |
| Modelfit made and saved? | Yes |
| Image Made and saved? | No |
| Comments on Difmap processing
J1118-46 Mopra off source a few times, Shanghi has a bad drift off-source as it sets (?). Model fitted, as the beam is diabolical. Model is a circular guassian of 0.226781Jy and 0.72 mas J1127-18 Correcting IF 1. HARTRAO 1.30 HOBART 0.85 MOP 0.77 SESHAN25 1.25 Correcting IF 2. HARTRAO 1.31 HOBART 0.86 MOP 0.78 SESHAN25 1.32 Flux = 0.897Jy. After correction, flux = 1jy. |
| Modelfit | ||||
| Ampl, Phase vs (u,v) Distance PS (26 kb) JPEG (36 kb) |
Ampl, Phase vs Time PS (117 kb) JPEG 1, 2 |
(u,v) Coverage PS (14 kb) JPEG (24 kb) | Closure Phase vs Time PS (92 kb) JPEG 1 |
Image with model components PS (32 kb) JPEG (38 kb) |
More details on the Images and Modelfits are found in this page.
