VS08N Results
Submitted checklist.txt and checklist.tex is also available		   [Summary | AIPS | Difmap ]
Analyst: Maria Rioja
Date Prepared: 21-09-2005
 

Summary
 
Observation code : VS08N    AIPS Version : 31DEC03   
Date of Observation : 2002/19    Difmap Version : 2.3c 
Source Name : J0152+22    vsop_difmap used : Yes 
Calibration Source(s) : J0204+15         
Ground telescopes : Ceduna, Hobart,Kashima,Kalyazin,Mopra,Seshan,NeWlInEHartrao  Model Fitted to data : Yes 
Tracking Station(s) : TZ    Image made : Yes 
Correlator : Penticton         

 
Abstract
Hobart data deleted. Space fringes found to all ground antennas. FRING run with increased delay window to account for VSOP "clock" jump. Good dataset.
Model
Flux (Jy)
Radius (mas)
Theta (deg)
Major (mas)
Axial ratio
Phi (deg)
TB (10^12 K)
0.411930 0.0460193 -174.250 0.405153 0.357817 12.2012 0.3423
0.0228870 0.331915 -17.6684 0 0 0 0.0000
(*) 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. Seshan (3) as ref 
CLCOR opcode 'gain';antenna 0;clcorprm
   1.08,0
2 
 
2 
 
  
FRING docal -1; dparm 2,800,400,0.5,0;aparm(7)=0.1;solint
   5,10,15
2 
 
 
2,3,4 
 Full range searched 
snedt
 
2 
 
5 
  
CLCAL refant=1;
2 
5 
3 
 
  
SPLIT aparm(1)=2 0;
3 
 
 
 
 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
PRTAN.LIS
LISTR.LIS
DTSUM_0.LIS
DTSUM_1.LIS
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


Difmap Data Reduction Notes
Phase selfcal applied? Yes
Global amplitude selfcal (gscal) applied? Yes
Amplitude selfcal on non-global timescales used? No
Modelfit made and saved? Yes
Image Made and saved? Yes
Comments on Difmap processing
I deleted Hobart data since it seemed to be affected by some serious problem. The model generated with difmap consists of 2 components, aligned in the same direction as in the map from the pre-launch survey.

Image
Ampl, Phase vs (u,v) Distance
PS (41 kb)
JPEG (44 kb)
 Ampl, Phase vs Time
PS (308 kb)
JPEG 1, 2, 3, 4		 (u,v) Coverage
PS (23 kb)
JPEG (30 kb)
Closure Phase vs Time
PS (611 kb)
JPEG 1, 2, 3, 4		 Clean Image
PS (33 kb)
JPEG (44 kb)
Modelfit
Ampl, Phase vs (u,v) Distance
PS (41 kb)
JPEG (44 kb)
 Ampl, Phase vs Time
PS (308 kb)
JPEG 1, 2, 3, 4		 (u,v) Coverage
PS (23 kb)
JPEG (30 kb)
Closure Phase vs Time
PS (611 kb)
JPEG 1, 2, 3, 4		 Image with model components
PS (33 kb)
JPEG (38 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)
0.411930 0.0460193 -174.250 0.405153 0.357817 12.2012 0.3423
0.0228870 0.331915 -17.6684 0 0 0 0.0000
(*) Quoted Brightness temperatures assume Gaussian components and are in the local (z=0) frame.


Last updated on Wed Sep 21 15:20:24 UTC 2005
by db_results.pl version 0.3.