VS01L Results
Submitted checklist.txt and checklist.tex is also available		   [Summary | AIPS | Difmap ]
Analyst: Richard Dodson
Date Prepared: 08-09-2005
 

Summary
 
Observation code : VS01L    AIPS Version : 31DEC03   
Date of Observation : 1998/135    Difmap Version : 2.3c 
Source Name : 2145+067    vsop_difmap used : Yes 
Calibration Source(s) : 2251+158         
Ground telescopes : Sh Ho Hh No  Model Fitted to data : Yes 
Tracking Station(s) : GZ NZ TZ UZ    Image made : Yes 
Correlator : Mitaka         

 
Abstract
From vt838, very high rates, but position seems correct. Correlator changed from the web pages. Good space fringes and agreement with PLS.
Model
Flux (Jy)
Radius (mas)
Theta (deg)
Major (mas)
Axial ratio
Phi (deg)
TB (10^12 K)
4.73148 0.0132804 174.073 0.908743 0.373649 -50.7846 0.7483
0.179716 4.31721 150.658 0 0 0 0.0000
(*) Quoted Brightness temperatures assume Gaussian components and are in the local (z=0) frame.


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 
  
ACCOR solint 5
 
 
 
2 
  
CLCAL refant=1;
1 
1,2 
2,3 
 
 Amplitude calibration solutions applied. 
CLCOR opcode 'gain';antenna 0;clcorprm
   1.063,0
3 
 
3 
 
  
FRING docal -1; dparm 2,400,400,0.5,0;aparm(7)=0.1;solint
   5,10,15
 
 
 
3,4,5,6 
 Fringe search 
SNEDT/CLCAL refant=1;
3 
6 
4 
7 
  
SPLIT aparm(1)=2 0;
4 
 
 
 
 Av within IF 
FITTP
 
 
 
 
 Data written out for analysis in Difmap amplitude 

AIPS Input Files
ANTAB.TXT Comments
used nominal_tsys.pl

AIPS Output Files
PRTAN.LIS
LISTR.LIS
DTSUM_0.LIS
DTSUM_1.LIS
UVPLT_UV.PS
UVPLT_UVD.PS
UVPLT_UVPA.PS
SN_ACCOR_AMP_1.PS
SN_ACCOR_AMP_2.PS
SN_APCAL_AMP_2.PS		 SN_APCAL_AMP_1.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
SN_CALIB_DEL_1.PS
SN_CALIB_DEL_2.PS
SN_CALIB_RAT_1.PS		 SN_CALIB_RAT_2.PS
SN_CALIB_SNR_1.PS
SN_CALIB_SNR_2.PS
SN_CALIB_PHA_1.PS
SN_CALIB_PHA_2.PS
VPLOT.PS
POSSM.PS


Difmap Data Reduction Notes
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
2251+158 is a point source & ~ 3.7 Jy to the PLS 12.3 Jy.

4 tracking antenna, fringes to all. Not brilliant uv coverage. PLS flux down by ~ 7/4. Extends in the direction of the PLS, with a marginal second component.

Image
Ampl, Phase vs (u,v) Distance
PS (50 kb)
JPEG (44 kb)
 Ampl, Phase vs Time
PS (268 kb)
JPEG 1, 2, 3, 4		 (u,v) Coverage
PS (26 kb)
JPEG (27 kb)
Closure Phase vs Time
PS (299 kb)
JPEG 1, 2, 3		 Clean Image
PS (36 kb)
JPEG (45 kb)
Modelfit
Ampl, Phase vs (u,v) Distance
PS (50 kb)
JPEG (44 kb)
 Ampl, Phase vs Time
PS (267 kb)
JPEG 1, 2, 3, 4		 (u,v) Coverage
PS (26 kb)
JPEG (27 kb)
Closure Phase vs Time
PS (299 kb)
JPEG 1, 2, 3		 Image with model components
PS (37 kb)
JPEG (41 kb)

More details on the Images and Modelfits are found in this page.

Model
Flux (Jy)
Radius (mas)
Theta (deg)
Major (mas)
Axial ratio
Phi (deg)
TB (10^12 K)
4.73148 0.0132804 174.073 0.908743 0.373649 -50.7846 0.7483
0.179716 4.31721 150.658 0 0 0 0.0000
(*) Quoted Brightness temperatures assume Gaussian components and are in the local (z=0) frame.


Last updated on Mon Sep 12 11:28:45 UTC 2005
by db_results.pl version 0.3.