VS11K Results
Submitted checklist.txt and checklist.tex is also available		   [Summary | AIPS | Difmap ]
Analyst: Richard Dodson
Date Prepared: 05-07-2004
 

Summary
 
Observation code : VS11K    AIPS Version : 31DEC03   
Date of Observation : 2003/279    Difmap Version : 2.4a 
Source Name : J1932-45    vsop_difmap used : No 
Calibration Source(s) : J1957-38         
Ground telescopes : HO HH  Model Fitted to data : Yes 
Tracking Station(s) : UZ    Image made : No 
Correlator : Mitaka         

 
Abstract
Hobart has a large delay wrt Harts. No space fringes, resolving weak source.

Reselfcaled in aips with two if's. Data in J1932_AIPS_UVF.

Barely detected at long spacing. Lots of missing large-scale structure.
Model
Flux (Jy)
Radius (mas)
Theta (deg)
Major (mas)
Axial ratio
Phi (deg)
TB (10^12 K)
0.0944825 0.0123952 -152.719 0.350892 1.00000 45.2938 0.0374
(*) 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. Hob as ref 
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 
  
FRING dparm
   2,0,0,0.5,0;aparm(7)=0.1;solint
 
 
 
6 
 Hobart to Hart is large 
CLCOR opcode 'sdbl';antenna 1 0;clcorprm
   -400,-400,0
4 
 
4 
 
  
FRING docal 1;refa 1;dparm 2,0,0,0.5,0;aparm(7)=0.1;solint
   5,10,15
4 
8,9 
 
 
 Still nothing to VSOP 
CLCAL refant=1;
4 
9 
5 
 
  
SPLIT aparm(1)=2 0;
5 
 
 
 
 Av within IF 
FITTP
 
 
 
 
 Data written out for analysis in Difmap 

AIPS Input Files
ANTAB.TXT Comments
used nominal_tsys.pl

AIPS Output Files
DTSUM_1.LIS
PRTAN.LIS
LISTR.LIS
DTSUM_0.LIS
VPLOT.PS
POSSM.PS
UVPLT_UV.PS
UVPLT_UVD.PS		 UVPLT_UVPA.PS
SN_ACCOR_AMP_1.PS
SN_ACCOR_AMP_2.PS
SN_APCAL_AMP_1.PS
SN_APCAL_AMP_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
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
Recalibration in AIPS seemed to help. Fit one gaussian

Core size 0.35 +/- 0.10

Modelfit
Ampl, Phase vs (u,v) Distance
PS (29 kb)
JPEG (43 kb)
 Ampl, Phase vs Time
PS (72 kb)
JPEG 1, 2		 (u,v) Coverage
PS (16 kb)
JPEG (26 kb)
Closure Phase vs Time
PS (38 kb)
JPEG 1		 Image with model components
PS (29 kb)
JPEG (35 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)
0.0944825 0.0123952 -152.719 0.350892 1.00000 45.2938 0.0374
(*) Quoted Brightness temperatures assume Gaussian components and are in the local (z=0) frame.


Last updated on Tue Oct 11 13:34:09 UTC 2005
by db_results.pl version 0.3.