VS08D1 Results
Submitted checklist.txt and checklist.tex is also available		   [Summary | AIPS | Difmap ]
Analyst: Richard Dodson
Date Prepared: 04-09-2004
 

Summary
 
Observation code : VS08D1    AIPS Version : 31DEC03   
Date of Observation : 2002/134    Difmap Version : 2.4a 
Source Name : J2207-53    vsop_difmap used : No 
Calibration Source(s) : 1617-77, 0303-62         
Ground telescopes : HO MP  Model Fitted to data : Yes 
Tracking Station(s) : UZ    Image made : Yes 
Correlator : Penticton         

 
Abstract
Combined VS08D1 and VS08D2. D2 has space fringes, D1 does not and should have. Without VSOP the single baseline would be flagged by selfcal. Might agree with VS08D

EBF:11-OCT-2005:

Somewhat ambiguous to fit. Used to circular components to fit extended structure, and forced point to approximate core. Fit not particularly good. Core < 0.15 mas
Model
Flux (Jy)
Radius (mas)
Theta (deg)
Major (mas)
Axial ratio
Phi (deg)
TB (10^12 K)
0.300466 0.0349091 58.7569 0 0 0 0.0000
0.289526 0.537765 10.5864 0.332299 1.00000 54.6458 0.1280
0.454385 0.344248 151.150 0.322168 1.00000 41.7552 0.2136
(*) 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 
  
CLCAL refant=1;
1 
1 
2 
 
 Amplitude calibration solutions applied. XX as ref 
FRING docal -1; dparm 2,400,400,0.5,0;aparm(7)=0.1;solint
   5,10,15
 
 
 
2,3,4 
 Full range searched 
SNEDT/SNCOR/CLCAL refant=1;ant 3;opc zdel/zrat/zphs;interpo
   'ambg'
2 
 
3 
5 
  
KRING cparm 0.5,0,0,-1,0;aparm(7)=0.1;solint
   10/5;dofit 3 0;
solm 'rd'/'';cparm
   0.5,400,200,-1,0;
3 
 
 
6,7,8 
  
SPLIT aparm(1)=2 0;
3 
 
 
 
 Av within IF 
DBCON inn 'j2207-53';in2n inn;inc
   'vs08d1';in2c 'vs08d2'
 
 
 
 
 Combine Day 1 and Day 2 
FITTP
 
 
 
 
 Data written out for analysis in Difmap amplitude 

AIPS Input Files
ANTAB.TXT Comments
used nominal_tsys.pl Both VS08D and VS08D2 had fringes - but not this one.

AIPS Output Files
DTSUM_1.LIS
PRTAN.LIS
LISTR.LIS
DTSUM_0.LIS
SN_FRING02_DEL_2.PS
SN_CALIB_DEL_1.PS
VPLOT.PS
POSSM.PS
UVPLT_UV.PS
UVPLT_UVD.PS
UVPLT_UVPA.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_FRING02_DEL_1.PS
SN_FRING02_RAT_1.PS
SN_FRING02_RAT_2.PS		 SN_FRING02_SNR_1.PS
SN_FRING02_SNR_2.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
IMAGE.FITS


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

Image
Ampl, Phase vs (u,v) Distance
PS (40 kb)
JPEG (44 kb)
 Ampl, Phase vs Time
PS (147 kb)
JPEG 1, 2, 3		 (u,v) Coverage
PS (22 kb)
JPEG (27 kb)
Closure Phase vs Time
PS (91 kb)
JPEG 1		 Clean Image
PS (33 kb)
JPEG (48 kb)
Modelfit
Ampl, Phase vs (u,v) Distance
PS (40 kb)
JPEG (44 kb)
 Ampl, Phase vs Time
PS (148 kb)
JPEG 1, 2, 3		 (u,v) Coverage
PS (22 kb)
JPEG (27 kb)
Closure Phase vs Time
PS (91 kb)
JPEG 1		 Image with model components
PS (33 kb)
JPEG (38 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)
0.300466 0.0349091 58.7569 0 0 0 0.0000
0.289526 0.537765 10.5864 0.332299 1.00000 54.6458 0.1280
0.454385 0.344248 151.150 0.322168 1.00000 41.7552 0.2136
(*) Quoted Brightness temperatures assume Gaussian components and are in the local (z=0) frame.


Last updated on Tue Oct 11 23:50:57 UTC 2005
by db_results.pl version 0.3.