VS05X1 Results
Submitted checklist.txt and checklist.tex is also available		   [Summary | AIPS | Difmap ]
Analyst: Richard Dodson
Date Prepared: 01-08-2003
 

Summary
 
Observation code : VS05X1    AIPS Version : 31DEC03   
Date of Observation : 2002/197    Difmap Version : 2.3c 
Source Name : J0125-0005    vsop_difmap used : No 
Calibration Source(s) : J2148+06         
Ground telescopes : NT KL (TR)  Model Fitted to data : Yes 
Tracking Station(s) : UZ    Image made : Yes 
Correlator : Mitaka         

 
Abstract
space fringes. double core and extended blob.
Model
Flux (Jy)
Radius (mas)
Theta (deg)
Major (mas)
Axial ratio
Phi (deg)
TB (10^12 K)
0.417291 0.138846 0.928227 0.300000 1.00000 0.00000 0.2263
0.298098 0.811830 -85.2806 0.896259 0.500000 90.0000 0.0362
(*) 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. XX as ref 
CLCOR opcode 'gain';antenna 0;clcorprm
   1.063,0
3 
 
3 
 
  
FRING docal -1; dparm 2,0,0,0.5,0;aparm(7)=0.1;solint
   5,10,15
 
 
 
3,4,5,6 
 Full range searched 
SNEDT
 
6 
 
7 
 Full range searched 
CLCAL refant=1;inter 'ambg','cube'
3 
7,8 
4,5,6 
 
 SN 7 and 8 produced the same. 
SPLIT aparm(1)=2 0;
5 
 
 
 
 Av within IF 
FITTP
 
 
 
 
 Data written out for analysis in Difmap 

AIPS Input Files
ANTAB.TXT Comments
- None -

AIPS Output Files
PRTAN.LIS
LISTR.LIS
DTSUM_0.LIS
DTSUM_1.LIS
POSSM.PS
VPLOT.PS
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
SN_CALIB_PHA_3.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
PLS has several resolving components, the data can be said to match.

EBF Processing/checking 2005-Oct-01 Image and model fit looks fishy. Reloaded J0125-00.VS05X1.UVF into AIPS and then

1. Some additional editing

2. Average data to 20 sec

3. Several self-cal loops. IF's COMBINE for better SNR

4. Final selc-cal phase in SN_CALIB_PHA_3.PS

5. New file is J0125-00_AIPSSC_WT

6. Sent to Difmap for imaging and modelfitting.

7. Core is 0.3 +/- 0.1 in size.

Image
Ampl, Phase vs (u,v) Distance
PS (23 kb)
JPEG (38 kb)
 Ampl, Phase vs Time
PS (82 kb)
JPEG 1, 2		 (u,v) Coverage
PS (13 kb)
JPEG (25 kb)
Closure Phase vs Time
PS (46 kb)
JPEG 1		 Clean Image
PS (31 kb)
JPEG (45 kb)
Modelfit
Ampl, Phase vs (u,v) Distance
PS (23 kb)
JPEG (38 kb)
 Ampl, Phase vs Time
PS (82 kb)
JPEG 1, 2		 (u,v) Coverage
PS (13 kb)
JPEG (25 kb)
Closure Phase vs Time
PS (46 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)
0.417291 0.138846 0.928227 0.300000 1.00000 0.00000 0.2263
0.298098 0.811830 -85.2806 0.896259 0.500000 90.0000 0.0362
(*) Quoted Brightness temperatures assume Gaussian components and are in the local (z=0) frame.


Last updated on Mon Oct 10 02:24:23 UTC 2005
by db_results.pl version 0.3.