VS10L1 Results
Submitted checklist.txt and checklist.tex is also available		   [Summary | AIPS | Difmap ]
Analyst: Richard Dodson
Date Prepared: 05-09-2004
 

Summary
 
Observation code : VS10L1    AIPS Version : 31DEC03   
Date of Observation : 2002/91    Difmap Version : 2.3c 
Source Name : J2152-7807    vsop_difmap used : Yes 
Calibration Source(s) : J0303-62         
Ground telescopes : HH CD HO MP  Model Fitted to data : Yes 
Tracking Station(s) : UZ    Image made : No 
Correlator : Penticton         

 
Abstract
No sign of HALCA fringes, but is it the orbit calculation? Mopra still very low I believe it is resolving on the GRT baselines.
Model
Flux (Jy)
Radius (mas)
Theta (deg)
Major (mas)
Axial ratio
Phi (deg)
TB (10^12 K)
0.590160 0.00000 0.00000 1.01263 0.477182 54.5561 0.0589
(*) 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. 
FRING dparm 2,400,400,0.5,0;aparm(7)=0.1;solint
   5,10,15;refa 2/3
 
 
 
2,3,4,5 
  
UVFLG flagv 1;ante 1;reason 'maser
   off';ante 4;timer
0 07 0 0 7 25 42/0 7 37 5
   0 7 43 27
 
 
 
 
 No ceduna & mopra off source a bit 
FRING dparm 2,60,60,0.5,0;aparm(5)=1/0;solint
   5;refa 3;ante -5
 
 
 
6,7 
 no HALCA, tight search for the GRTs. Mopra poor 
SNEDT/CLCAL opc 'calp';interp 'poly';intp
   3
2 
7 
3 
8 
  
FRING dparm 2,60,20,0.5,0;ante
    -5 0;solint
   10/5;aparm(5)=0/1
3 
 
 
9,10,11,12 
  
SNEDT/CLCAL opc 'calp';interp 'ambg'
3 
11 
4 
13 
  
KRING cparm 0.5,100,30,0.5,0;dofit
   5;ante -4 0;
solint 10/5;solm 'rd'/''
4 
 
 
14,15,16,17 
 No fringes 
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
DTSUM_0.LIS
DTSUM_1.LIS
LISTR.LIS
POSSM.PS
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
SN_FRING02_DEL_1.PS		 SN_FRING02_DEL_2.PS
SN_FRING02_RAT_1.PS
SN_FRING02_RAT_2.PS
SN_FRING02_SNR_1.PS
SN_FRING02_SNR_2.PS
UVPLT_UV.PS
UVPLT_UVD.PS
UVPLT_UVPA.PS
VPLOT.PS
IMAGE.FITS


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? Yes
Image Made and saved? No
Comments on Difmap processing
Mopra is low, and needs scaling up by about 5, which is acceptable as the HO-HH MO-HH baselines are almost identical. J0303-68 Agrees for this.

Once this is done a simple Guassian can be fit, which would imply that the space fringes would resolve.

Modelfit
Ampl, Phase vs (u,v) Distance
PS (41 kb)
JPEG (42 kb)
 Ampl, Phase vs Time
PS (142 kb)
JPEG 1, 2		 (u,v) Coverage
PS (23 kb)
JPEG (28 kb)
Closure Phase vs Time
PS (107 kb)
JPEG 1		 Image with model components
PS (30 kb)
JPEG (36 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)
0.590160 0.00000 0.00000 1.01263 0.477182 54.5561 0.0589
(*) Quoted Brightness temperatures assume Gaussian components and are in the local (z=0) frame.


Last updated on Mon Sep 6 08:46:39 GMT 2004
by db_results.pl version 0.3.