VS07R Results
Submitted checklist.txt and checklist.tex is also available		   [Summary | AIPS | Difmap ]
Analyst: Richard Dodson
Date Prepared: 03-10-2005
 

Summary
 
Observation code : VS07R    AIPS Version : 31DEC03   
Date of Observation : 1998/215    Difmap Version : 2.3c 
Source Name : J0217+01    vsop_difmap used : Yes 
Calibration Source(s) :          
Ground telescopes : HH NT HH KL  Model Fitted to data : Yes 
Tracking Station(s) : RZ UZ    Image made : Yes 
Correlator : Penticton         

 
Abstract
Combined Penticton experiment VS07R with Mitaka VS07R1.

EBF: 09-OCT-2005:

Can be fit by one elliptical gaussian source, or by a point source plus a circular source. Good luck deciding which is better. Two model component given here. Point source limit is <0.12

The ellptical fit is 0.457276v 0.0876430v 49.2002v 0.430037v 0.381721v 29.3632v
Model
Flux (Jy)
Radius (mas)
Theta (deg)
Major (mas)
Axial ratio
Phi (deg)
TB (10^12 K)
0.286139 0.0740112 49.7816 0 0 0 0.0000
0.175863 0.123323 38.1043 0.756117 1.00000 50.9645 0.0150
(*) 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
DBCON/FITTP dopos 0;fqtol -1
 
 
 
 
 Combined two different experiments. Equinox for Mitaka=0. Freq different for the two experiments. 4 years between them. amplitude 

AIPS Input Files
Comments
used nominal_tsys.pl

AIPS Output Files
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
Works well. Amazing considering the possible differences: frequency (4.9 4.8), equinox, position. slightly extended core fits best.

EBF: 09-OCT-2005:

Can be fit by one elliptical gaussian source, or by a point source plus a circular source. Good luck deciding which is better. Two model component given here. Point source limit is <0.12

The ellptical fit is 0.457276v 0.0876430v 49.2002v 0.430037v 0.381721v 29.3632v

Image
Ampl, Phase vs (u,v) Distance
PS (43 kb)
JPEG (38 kb)
 Ampl, Phase vs Time
PS (176 kb)
JPEG 1, 2, 3		 (u,v) Coverage
PS (24 kb)
JPEG (25 kb)
Closure Phase vs Time
PS (102 kb)
JPEG 1		 Clean Image
PS (31 kb)
JPEG (45 kb)
Modelfit
Ampl, Phase vs (u,v) Distance
PS (43 kb)
JPEG (38 kb)
 Ampl, Phase vs Time
PS (175 kb)
JPEG 1, 2, 3		 (u,v) Coverage
PS (24 kb)
JPEG (25 kb)
Closure Phase vs Time
PS (102 kb)
JPEG 1		 Image with model components
PS (32 kb)
JPEG (37 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)
0.286139 0.0740112 49.7816 0 0 0 0.0000
0.175863 0.123323 38.1043 0.756117 1.00000 50.9645 0.0150
(*) Quoted Brightness temperatures assume Gaussian components and are in the local (z=0) frame.


Last updated on Wed Oct 12 06:15:32 UTC 2005
by db_results.pl version 0.3.