VS11I1 Results
Submitted checklist.txt and checklist.tex is also available		   [Summary | AIPS | Difmap ]
Analyst: Richard Dodson
Date Prepared: 05-08-2003
 

Summary
 
Observation code : VS11I1    AIPS Version : 31DEC03   
Date of Observation : 2002/212    Difmap Version : 2.4a 
Source Name : J0239+04    vsop_difmap used : No 
Calibration Source(s) : J0423-01         
Ground telescopes : NO HH KL  Model Fitted to data : Yes 
Tracking Station(s) : UZ    Image made : Yes 
Correlator : Mitaka         

 
Abstract
Space Fringes. Flux much lower than the pre-lauch; however ATCA is dropping after 1996.

EBF: 07-OCT-2005: Made model more consistent with VLBApls. The resultant core is a bit weaker.
Model
Flux (Jy)
Radius (mas)
Theta (deg)
Major (mas)
Axial ratio
Phi (deg)
TB (10^12 K)
0.151166 0.874932 145.653 1.01579 0.0000
0.146534 0.0484063 -17.2690 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 
  
ACCOR solint 5
 
 
 
2 
  
CLCAL refant=1;
1 
1,2 
2,3 
 
 Amplitude calibration solutions applied. Noto 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 
 Full range searched 
SNEDT/CLCAL refant=1;
3 
4 
4 
6 
 flag 2 bad VSOP points 
SPLIT aparm(1)=2 0;
4 
 
 
 
 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_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_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
UVPLT_UV.PS
UVPLT_UVD.PS
UVPLT_UVPA.PS
VPLOT.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
Gscale on J0423-01 (2.1 point source)

NOTO 1.10 HART 1.01 KALYAZIN 1.08 VSOP_UZ 1.00*

J0239+04 is much weaker (factor of 10). A double source still fits the data.

EBF: 01-OCT-2005

Could easily put extended component to North-west to be more consistent with pls. Extended component is about same as before, but core has decrease flux density significant. This is consistent with trend from ATCA with core decreasing.

Core is slightly resolved. 0.15 +\- 0.07

Image
Ampl, Phase vs (u,v) Distance
PS (60 kb)
JPEG (48 kb)
 Ampl, Phase vs Time
PS (169 kb)
JPEG 1, 2		 (u,v) Coverage
PS (32 kb)
JPEG (29 kb)
Closure Phase vs Time
PS (121 kb)
JPEG 1		 Clean Image
PS (32 kb)
JPEG (48 kb)
Modelfit
Ampl, Phase vs (u,v) Distance
PS (60 kb)
JPEG (48 kb)
 Ampl, Phase vs Time
PS (169 kb)
JPEG 1, 2		 (u,v) Coverage
PS (32 kb)
JPEG (29 kb)
Closure Phase vs Time
PS (121 kb)
JPEG 1		 Image with model components
PS (32 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)
0.151166 0.874932 145.653 1.01579 0.0000
0.146534 0.0484063 -17.2690 0 0 0 0.0000
(*) Quoted Brightness temperatures assume Gaussian components and are in the local (z=0) frame.


Last updated on Fri Oct 7 08:52:01 UTC 2005
by db_results.pl version 0.3.