VS05R1 Results
Submitted checklist.txt and checklist.tex is also available		   [Summary | AIPS | Difmap ]
Analyst: Richard Dodson
Date Prepared: 08-08-2004
 

Summary
 
Observation code : VS05R1    AIPS Version : 31DEC00   
Date of Observation : 2002/165    Difmap Version : 2.4a 
Source Name : J1150-0023    vsop_difmap used : Yes 
Calibration Source(s) :          
Ground telescopes : KA,MP,HO  Model Fitted to data : Yes 
Tracking Station(s) : UZ    Image made : No 
Correlator : Mitaka         

 
Abstract
No space fringes, 1.5 mas fit, so expected. Agrees with the pre-launch (very well).
Model
Flux (Jy)
Radius (mas)
Theta (deg)
Major (mas)
Axial ratio
Phi (deg)
TB (10^12 K)
1.19308 0.0179632 -61.3819 1.54600 1.00000 -167.633 0.0244
(*) 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'
 
 
 
 
 Remade this as the MOPRA values weren't read (L01 rather than L1?) 
APCAL
 
 
 
1 
  
ACCOR solint 5
 
 
 
2 
  
CLCAL refant=1;
1 
1,2 
2,3 
 
 Amplitude calibration solutions applied. Hobart as ref 
FRING dparm 2,200,200,0,0.5,0;aparm(7)=0.1;solint
   5,10,15
3 
 
 
3,4,5 
 No space fringes. Best GRT at 10m 
SNSMO
 
4 
 
6 
  
CLCAL opcode 'calp';opty 'ambg'
3 
6 
4 
 
 Grt fringes applied; AMBG gives a poor sol. POLY gives a very poor solution. 
FRING dparm 2,0,0,0,2,0;aparm(7)=0.1;solint
   10;dofit=4
4 
 
 
7 
 Found NO solutions. Deleted table 
FRING dparm 2,100,100,0,2,0;aparm(7)=0.1;solint
   10;
4 
 
 
7 
 Fine tune GRTs. The solutions are poor for the second source. And effect the other. Why is that - they should be seperate. 
CLCAL opcode 'calp';opty 'ambg'
4 
7 
5 
 
 No VSOP data now 
CLCOR opcode 'gain';antenna 0;clcorprm
   1.13,0
opcode 'gain';antenna 0;clcorprm
   1/sqrt(1.13),0
5 
 
5 
 
  
SNEDT/SNCOR/CLCAL opc 'zphs/zrat/zdel' ant
   4;sour 'j1150-00'
3 
4 
7 
9 
 Zero VSOP sols, cal on target source, for stacking 
KRING dofit 4;cpar 0.5,2000,400,-1
7 
 
 
10 
 Try stacking 
KRING dofit 4;cpar 0.5,100,40,-1;
   solmo ''/'nr'
7 
 
 
11,12 
 Improve solution for the GRTs 
CLCAL sour 'j1150-00'
7 
12 
8 
 
  
SPLIT aparm(1)=2 0;
8 
 
 
 
 Av within IF 
FITTP
 
 
 
 
 Data written out for analysis in Difmap 

AIPS Input Files
Comments
Attempting automatic reduction. History has a lot of restarts!

AIPS Output Files
PRTAN.LIS
LISTR.LIS
DTSUM_0.LIS
DTSUM_1.LIS
UVPLT_UV.PS
UVPLT_UVD.PS
POSSM.PS
VPLOT.PS		 UVPLT_UVPA.PS
SN_ACCOR_AMP_1.PS
SN_ACCOR_AMP_2.PS
SN_APCAL_AMP_2.PS
SN_APCAL_AMP_1.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


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
J1215-17 is flat - so gains seem okay

Modelfit
Ampl, Phase vs (u,v) Distance
PS (22 kb)
JPEG (34 kb)
 Ampl, Phase vs Time
PS (122 kb)
JPEG 1, 2		 (u,v) Coverage
PS (19 kb)
JPEG (25 kb)
Closure Phase vs Time
PS (95 kb)
JPEG 1		 Image with model components
PS (825 bytes)

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)
1.19308 0.0179632 -61.3819 1.54600 1.00000 -167.633 0.0244
(*) Quoted Brightness temperatures assume Gaussian components and are in the local (z=0) frame.


Last updated on Fri Aug 6 08:17:01 GMT 2004
by db_results.pl version 0.3.