VS07B1 Results
Submitted checklist.txt and checklist.tex is also available		   [Summary | AIPS | Difmap ]
Analyst: Richard Dodson
Date Prepared: 24-03-2003
 

Summary
 
Observation code : VS07B1    AIPS Version : 31DEC03   
Date of Observation : 2002/145    Difmap Version : 2.4a 
Source Name : J2336-5236    vsop_difmap used : No 
Calibration Source(s) :          
Ground telescopes : HH HO MP  Model Fitted to data : Yes 
Tracking Station(s) : UZ    Image made : No 
Correlator : Penticton         

 
Abstract
DQA no space fringes Mopra was out after 4:45. After this it observed the calibrator but not the target.

It is a ICRF source, but looks (with these limited baselines) to resolve.
Model
Flux (Jy)
Radius (mas)
Theta (deg)
Major (mas)
Axial ratio
Phi (deg)
TB (10^12 K)
1.00735 0.0235388 -62.6628 1.09854 1.00000 0.00000 0.0407
0.178610 1.91114 -159.893 0.800023 1.00000 0.00000 0.0136
(*) 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. HH as ref 
FRING docal -1; dparm 2,0,0,0.5,0;aparm(7)=0.1;solint
   5,10
 
 
 
2,3 
 Full range searched 
SNEDT/SNSMO refant=1;
 
3 
 
4,5 
  
CLCAL refant=1;interp 'ambg';intp
   0;
2 
5 
3 
 
  
CALIB aparm 3 0;solint 3/1;
3 
 
 
6,7 
 Selfcal where we can. 3 min and 1 min scale. 
CLCAL opc 'calp'; interp 'box';intp
   1/6;
3 
6,7 
4,5 
 
  
TABED aparm 17/21,0,0,2,4,4,0;keyv
   1 0;aparm(1)=18;keyv 0;
5 
 
 
5 
 Recreated the halca cal. 
KRING cparm 0.5,120,120,-1,0;dofit
   4;
5 
 
 
8 
 Try and find something on HALCA. Nothing found. 
FRING
5 
 
 
9 
 fine tune 
SNEDT/SNCOR/CLCAL
5 
9 
6 
10 
 final sol 
SPLIT aparm(1)=2 0;
6 
 
 
 
 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
POSSM.PS
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


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? No
Comments on Difmap processing
Calibrator J0303-62 model (resolving Gaussian) seems reasonable (but will be effected by the delay solutions).

It is PMN J2336-5236 with a single dish flux of 1.5 Jy. This apears to resolve beyond the Ho/Mop baseline. Clean does not produce a good answer. Two gaussian components is acceptable.

Modelfit
Ampl, Phase vs (u,v) Distance
PS (32 kb)
JPEG (39 kb)
 Ampl, Phase vs Time
PS (127 kb)
JPEG 1, 2		 (u,v) Coverage
PS (18 kb)
JPEG (26 kb)
Closure Phase vs Time
PS (100 kb)
JPEG 1		 Image with model components
PS (38 kb)
JPEG (43 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)
1.00735 0.0235388 -62.6628 1.09854 1.00000 0.00000 0.0407
0.178610 1.91114 -159.893 0.800023 1.00000 0.00000 0.0136
(*) Quoted Brightness temperatures assume Gaussian components and are in the local (z=0) frame.


Last updated on Tue Aug 24 08:22:08 GMT 2004
by db_results.pl version 0.3.