VS06p Results
Submitted checklist.txt and checklist.tex is also available		   [Summary | AIPS | Difmap ]
Analyst: Shinji HORIUCHI
Date Prepared: 04-10-2005
 

Summary
 
Observation code : VS06p    AIPS Version : 12DEC03   
Date of Observation : 2002/100    Difmap Version : 2.3c 
Source Name : J0713+43    vsop_difmap used : Yes 
Calibration Source(s) :          
Ground telescopes : UD  Model Fitted to data : Yes 
Tracking Station(s) : UZ    Image made : Yes 
Correlator : Mitaka         

 
Abstract
Since one GRT (Usuda) is available for vs06p though space baseline fringes are detected, the data is combined with other GRT only experiment w095d made about 1.5 yr ago. The source J0713+43 is a compact symmetric source and not much variability is expected, which is justified also from two of the USNO X-band images taken with a 10 years separation. Unfortunately for w095d fringes are detected only between Kalyazin and Hart, so we are missing short spacing less than 100 Mlambda. On the other hand the space fringes of VS06p are only detected for baseline less than 300 Mlambda. Gain correction of 1.13 is applied for Mitaka (vs06p) and 1.19 for Penticton (w095d). I tried to image and model-fit the source with three Gaussian components without self-cal. vsop_difmap was not used.
Model
Flux (Jy)
Radius (mas)
Theta (deg)
Major (mas)
Axial ratio
Phi (deg)
TB (10^12 K)
0.168223 0.0404671 -166.652 0.709830 0.455564 20.2463 0.0358
5.46412 10.4995 -172.843 1.85867 0.593089 43.9520 0.1301
0.310278 11.5099 -174.268 0.886228 0.578913 78.1480 0.0333
0.0335601 22.9369 -176.373 0.889255 0.421586 22.9306 0.0049
0.251486 0.0553423 62.4641 1.94052 0.175156 60.2555 0.0186
0.0564643 3.42415 -125.367 1.18920 0.103419 40.3349 0.0188
(*) 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
 
 
 
 
  
INDXR
 
 
 
 
  
ACCOR
 
 
 
1 
  
FRING Solint=5, APARM(7)=0.1, DPARM=1,500,
   500, 0, REFANT=1
 
 
 
3 
  
ANTAB
 
 
 
 
 TY1, GC1 are generated. 
APCAL
 
 
 
4 
  
CLCAL
1 
1 
2 
 
 SMOTY 'AMPL' 
CLCAL
2 
4 
3 
 
 SMOTY 'AMPL' 
TACOP
 
3 
 
5 
  
SNCOR OPCODE='CLPD',SNCORP=-50,50
 
5 
 
5 
  
CLCAL
3 
3 
4 
 
 SMOTY 'VLBI' 
TACOP
4 
 
5 
 
  
CLCOR OPCODE='GAIN',CLPARM=1.13
5 
 
5 
 
 Correction for Mitaka 
SPLIT
5 
 
 
 
  
FITTP
 
 
 
 
  

AIPS Input Files
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_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? 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
Model fit was made with three Gaussian components.

Image
Ampl, Phase vs (u,v) Distance
PS (22 kb)
JPEG (38 kb)
 Ampl, Phase vs Time
PS (140 kb)
JPEG 1, 2, 3		 (u,v) Coverage
PS (11 kb)
JPEG (23 kb)
Closure Phase vs Time
PS (82 kb)
JPEG 1		 Clean Image
PS (35 kb)
JPEG (70 kb)
Modelfit
Ampl, Phase vs (u,v) Distance
PS (18 kb)
JPEG (37 kb)
 Ampl, Phase vs Time
PS (128 kb)
JPEG 1, 2, 3		 (u,v) Coverage
PS (11 kb)
JPEG (23 kb)
Closure Phase vs Time
PS (79 kb)
JPEG 1		 Image with model components
PS (1 kb)
JPEG (0 bytes)

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)
0.168223 0.0404671 -166.652 0.709830 0.455564 20.2463 0.0358
5.46412 10.4995 -172.843 1.85867 0.593089 43.9520 0.1301
0.310278 11.5099 -174.268 0.886228 0.578913 78.1480 0.0333
0.0335601 22.9369 -176.373 0.889255 0.421586 22.9306 0.0049
0.251486 0.0553423 62.4641 1.94052 0.175156 60.2555 0.0186
0.0564643 3.42415 -125.367 1.18920 0.103419 40.3349 0.0188
(*) Quoted Brightness temperatures assume Gaussian components and are in the local (z=0) frame.


Last updated on Fri May 5 07:55:49 UTC 2006
by db_results.pl version 0.3.