VS13B Results
Submitted checklist.txt and checklist.tex is also available		   [Summary | AIPS | Difmap ]
Analyst: Richard Dodson
Date Prepared: 05-08-2003
 

Summary
 
Observation code : VS13B    AIPS Version : 31DEC03 
Date of Observation : 2002/239    Difmap Version : 2.4a 
Source Name : J0414+05    vsop_difmap used : No 
Calibration Source(s) : J0423-01         
Ground telescopes : HO HH SH  Model Fitted to data : No 
Tracking Station(s) : UZ    Image made : No 
Correlator : Penticton         

 
Abstract
No fringes on long baselines - only SH-KA. This is a double with separation of 430 mas

From pls: A gravitational lens with an overall size of 2.2" (e.g. Katz, Moore & Hewitt 1997). Two of the four lensed components are in our field of view, separated by ~430 mas (Figure 4). See Porcas (1998) and Trotter, Winn & Hewitt (2000) for recent 5 GHz VLBI images of this system.

The prelaunch model resolves, and matches the survey data.


AIPS Data Reduction Notes
 
Task
Adverbs
CL
in
SN
in
CL
out
SN
out
Comments
FITLD clint = 0.25
digicor = -1
delcorr = -1
 
 
 
 
  
INDXR cparm = 0, 0, 0.25;
 
 
1 
 
  
ANTAB infile='antab.txt'
 
 
 
 
  
APCAL
 
 
 
1 
  
CLCAL refant=1;
1 
1 
2 
 
 Amplitude calibration solutions applied. SH as ref 
FRING docal -1;dparm 2,0,0,0.5,0;aparm(7)=0.1;solint
   5,10,15
 
 
 
2,3,4 
 Full range searched 
UVFIX/FRING shift -0.1,0.9
 
 
 
12 
 shift to the centre as seen on the short baseline. 
FRING refa=3;dparm 2,0,0,0.5,0;aparm(7)=0.1;solint
   5,10,15
 
 
 
5,6,7,8,9,10 
  
CLCAL interp 'poly';intp 2;
2 
9 
3 
 
 SN#9 is just on the calibrator source 
SPLIT aparm(1)=2 0;
3 
 
 
 
 Av within IF 
FITTP
 
 
 
 
 Data written out for analysis in Difmap 

AIPS Input Files
ANTAB.TXT Comments
- None -

AIPS Output Files
DTSUM_0.LIS
DTSUM_1.LIS
LISTR.LIS
PRTAN.LIS
SN_APCAL_AMP_1.PS
SN_APCAL_AMP_2.PS
SN_CALIB_DEL_1.PS
SN_CALIB_DEL_2.PS		 SN_CALIB_PHA_1.PS
SN_CALIB_PHA_2.PS
SN_CALIB_RAT_1.PS
SN_CALIB_RAT_2.PS
SN_CALIB_SNR_1.PS
SN_CALIB_SNR_2.PS
SN_FRING01_DEL_1.PS
SN_FRING01_DEL_2.PS		 SN_FRING01_RAT_1.PS
SN_FRING01_RAT_2.PS
SN_FRING01_SNR_1.PS
SN_FRING01_SNR_2.PS
UVPLT_UV.PS
UVPLT_UVD.PS
UVPLT_UVPA.PS


Difmap Data Reduction Notes
Phase selfcal applied? No
Global amplitude selfcal (gscal) applied? No
Amplitude selfcal on non-global timescales used? No
Modelfit made and saved? No
Image Made and saved? No
Comments on Difmap processing
Nothing worth imaging



Last updated on Fri Aug 6 10:45:10 GMT 2004
by db_results.pl version 0.3.