vs01w Results
Submitted checklist.txt and checklist.tex is also available
  [Summary | AIPS | Difmap ]
Analyst: Glenn Piner
Date Prepared: 18-06-1999
 

Summary
 
Observation code : vs01w    AIPS Version : 15APR99   
Date of Observation : 1998/145    Difmap Version : 2.3c 
Source Name : CTA102    vsop_difmap used : Yes 
Calibration Source(s) : 3C454.3         
Ground telescopes : LA,NL-MK,SC  Model Fitted to data : Yes 
Tracking Station(s) : NZ    Image made : Yes 
Correlator : Socorro         

 
Abstract
This survey dataset is an extraction of the GOT experiment v019b. The extraction was received on tape from Socorro containing data for four GRTs plus HALCA. All but 3 GRTs at any one time were flagged before imaging in Difmap. LA,NL,SC are used during the first hour of data, and LA,MK,SC during the remaining three hours.

Suggested parameters for all AIPS tasks were used. CALIB was not run so the final SN and CL tables have non-zero phases in them.

Imaging and model-fitting both went very well and produced good results. Structure is seen in the survey image out to ~20 mas from the core, in good agreement with the USNO map at 8 GHz from 1997 Dec.

Model
Flux (Jy)
Radius (mas)
Theta (deg)
Major (mas)
Axial ratio
Phi (deg)
TB (10^12 K)
1.20493 0.175554 149.562 0.684967 0.269194 -49.7676 0.4656
0.867262 2.01566 141.952 0.876433 0.499185 3.82479 0.1104
1.12096 7.06445 155.652 2.83236 0.463221 -1.25785 0.0147
0.447820 12.2474 152.297 2.64894 0.412844 -63.3364 0.0075
0.950514 18.3488 140.980 3.28202 1.00000 -17.5255 0.0043
(*) Quoted Brightness temperatures assume Gaussian components and are in the local (z=0) frame.



AIPS Data Reduction Notes
 
- None -

AIPS Input Files
UVFLG.TXT
ANTAB.TXT
INDXR.TXT
Comments
- None -

AIPS Output Files
PRTAN.LIS
LISTR.LIS
DTSUM_0.LIS
DTSUM_1.LIS
UVPLT_UV.PS
UVPLT_UVD.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
VPLOT_AP_1.PS
VPLOT_AP_2.PS
POSSM01_AP_1.PS
POSSM01_AP_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? Yes
Comments on Difmap processing

Image
Ampl, Phase vs (u,v) Distance
PS (67 kb)
GIF (8 kb)
Ampl, Phase vs Time
PS (264 kb)
GIF 1, 2, 3
(u,v) Coverage
PS (37 kb)
GIF (5 kb)
Closure Phase vs Time
PS (287 kb)
GIF 1, 2
Clean Image
PS (102 kb)
GIF (44 kb)
Modelfit
Ampl, Phase vs (u,v) Distance
PS (67 kb)
GIF (8 kb)
Ampl, Phase vs Time
PS (263 kb)
GIF 1, 2, 3
(u,v) Coverage
PS (37 kb)
GIF (5 kb)
Closure Phase vs Time
PS (287 kb)
GIF 1, 2
Image with model components
PS (117 kb)
GIF (11 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)
1.20493 0.175554 149.562 0.684967 0.269194 -49.7676 0.4656
0.867262 2.01566 141.952 0.876433 0.499185 3.82479 0.1104
1.12096 7.06445 155.652 2.83236 0.463221 -1.25785 0.0147
0.447820 12.2474 152.297 2.64894 0.412844 -63.3364 0.0075
0.950514 18.3488 140.980 3.28202 1.00000 -17.5255 0.0043
(*) Quoted Brightness temperatures assume Gaussian components and are in the local (z=0) frame.



Last updated on Mon Nov 22 08:01:05 GMT 1999
by db_results.pl version 0.2.0.