VS10F1 Results
Submitted checklist.txt and checklist.tex is also available		   [Summary | AIPS | Difmap ]
Analyst: Richard Dodson
Date Prepared: 29-07-2004
 

Summary
 
Observation code : VS10F1    AIPS Version : 31DEC00   
Date of Observation : 2002/26    Difmap Version : 2.3c 
Source Name : J0614+6046    vsop_difmap used : Yes 
Calibration Source(s) : J0217+73         
Ground telescopes : KA,SH  Model Fitted to data : Yes 
Tracking Station(s) : UZ    Image made : Yes 
Correlator : Mitaka         

 
Abstract
Space fringes where predicted from the VLBApls model Did selfcal in AIPS combining both IF's. Some space detection. Data set in J0614_SC_AIPS.FITS
Model
Flux (Jy)
Radius (mas)
Theta (deg)
Major (mas)
Axial ratio
Phi (deg)
TB (10^12 K)
0.132842 0.300290 -16.3158 0.270152 1.00000 71.3331 0.0888
0.141059 0.503711 164.988 0.362163 1.00000 8.02312 0.0525
(*) 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. Kashima as ref 
CLCOR opcode 'gain';antenna 0;clcorprm
   1.13,0
3 
 
3 
 
  
FRING docal -1; dparm 1,0,0,0.5,0;aparm(7)=0.1;solint
   5,10,15
 
 
 
3,4,5 
 Full range searched but fringes only at end for VSOP. 5min best 
SNEDT
 
3 
 
6 
 Best solutions 
CLCAL interpol 'poly';intparm 1
3 
6 
4 
 
  
FRING dparm 2,200,200,2,0;aparm(7)=0.1;solint
   5,10
4 
 
 
7,8 
 Try & find those halca fringes 
SNEDT
 
8 
 
9 
  
CLCAL interpol 'poly';intparm 5
4 
9 
5 
 
  
CALIB solint 10; aparm 2 0 0 0
   0 0 0 0.1 0 1 0
5 
 
 
10 
 Final solution 
CLCAL interpol ''
5 
10 
6 
 
  
CLCOR opcode 'gain';antenna 0;clcorprm
   1/sqrt(1.13),0
6 
 
6 
 
 Correction correction 
KRING cparm 0.5,20,20,-1;solm 'rd'/'';solint
   10/5
6 
 
 
11,12,13 
 Check to see if I can't do better. 
SPLIT aparm(1)=2 0;
6 
 
 
 
 Av within IF 
FITTP
 
 
 
 
 Data written out for analysis in Difmap 

AIPS Input Files
Comments
Fringes only at the end for HALCA

AIPS Output Files
PRTAN.LIS
LISTR.LIS
DTSUM_0.LIS
DTSUM_1.LIS
POSSM.PS
VPLOT.PS
UVPLT_UV.PS
UVPLT_UVD.PS
UVPLT_UVPA.PS		 SN_APCAL_AMP_1.PS
SN_APCAL_AMP_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_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? 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
Fitted a point source and a resolving source. The structure axis lies along the clean beam. I am not sure if the "noise" VSOP data should be included. If it does not have a signal that is information & constraints, but the lack of signal could also be due to failure. However the pre-launch model can be made to fit with a simple flux scaling of about 2.1.

EBF: 02-OCT-2005 Did selfcal in AIPS combining IF's. This file is J0614_SC_AIPS.FITS

Fit to two components of about equal size. Too weak to really tell about core and jet. Guess is that nothing is smaller than 0.2 mas.

The source is Extended north-south in VLBApls, so most of flux density is missing from VSOP observations.

Image
Ampl, Phase vs (u,v) Distance
PS (42 kb)
JPEG (51 kb)
 Ampl, Phase vs Time
PS (94 kb)
JPEG 1, 2		 (u,v) Coverage
PS (21 kb)
JPEG (27 kb)
Closure Phase vs Time
PS (49 kb)
JPEG 1		 Clean Image
PS (31 kb)
JPEG (54 kb)
Modelfit
Ampl, Phase vs (u,v) Distance
PS (42 kb)
JPEG (51 kb)
 Ampl, Phase vs Time
PS (93 kb)
JPEG 1, 2		 (u,v) Coverage
PS (21 kb)
JPEG (27 kb)
Closure Phase vs Time
PS (49 kb)
JPEG 1		 Image with model components
PS (31 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)
0.132842 0.300290 -16.3158 0.270152 1.00000 71.3331 0.0888
0.141059 0.503711 164.988 0.362163 1.00000 8.02312 0.0525
(*) Quoted Brightness temperatures assume Gaussian components and are in the local (z=0) frame.


Last updated on Mon Oct 10 08:24:32 UTC 2005
by db_results.pl version 0.3.