VS06w Results
Submitted checklist.txt and checklist.tex is also available		   [Summary | AIPS | Difmap ]
Analyst: Shinjii HORIUCHI
Date Prepared: 25-05-2001
 

Summary
 
Observation code : VS06w    AIPS Version : 15OCT99   
Date of Observation : 1999/146    Difmap Version : 2.3c 
Source Name : J1146-2447    vsop_difmap used : Yes 
Calibration Source(s) : 1034-293         
Ground telescopes : HO, SH, HA  Model Fitted to data : Yes 
Tracking Station(s) : UZ, RZ    Image made : Yes 
Correlator : Mitaka         

 
Abstract
Very low signal to noise with Halca-GRTs baselines espacially projected angle NW-SE direction, which is consistent with the source structure. Tho difserent REFANTs were used to get better signal to noise ration, Shangahai for former UZ starion and Hart for the later RZ link. No short spacing available less than 100 M lambda. Imaging was made with self-cal only and with no amplitude selfcal. There were two fetures with separation about 4 mas in N-S direction, which are consistent with USNO images.
Model
Flux (Jy)
Radius (mas)
Theta (deg)
Major (mas)
Axial ratio
Phi (deg)
TB (10^12 K)
0.326478 0.0670802 -124.471 0.505536 0.563758 32.6735 0.1106
0.163812 3.75993 175.090 1.46804 0.401814 -21.5676 0.0092
(*) 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
 
 
 
 
 --------------------------------------------------------- 
FRING Solint=10, APARM(7)=0.1,
    DPARM=1,1000, 200, 0,
   REFANT=3,
TIMERANG = 0/11:30:60.00
   to 0/17:00:00.00
 
 
 
10 
 wiht refant HART for RZ fringe --------------------------------------------------------- 
FRING Solint=6, APARM(7)=2, DPARM=1,100,
   150, 0, REFANT=2,
TIMERANG = 0/08:00:00.00
   to 0/11:30:60.00
 
 
 
13 
 with refant Shanghai for UZ fringe 
ANTAB
 
 
 
 
 TY1, GC1 are generated. 
APCAL
 
 
 
14 
  
TACOP
 
1 
 
15 
  
SNCOR OPCODE='CLPA', SNCORPRM =
    0.05000 0.06500 / Valid
   range of ampl
 
15 
 
15 
  
CLCAL
1 
15 
2 
 
 SMOTY 'AMPL" 
CLCAL
2 
14 
3 
 
 SMOTY 'AMPL" 
CLCAL
3 
0 
6 
 
 for sn 10, 13, SMOTY 'VLBI" 
SPLIT
10 
 
 
 
  
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_FRING1_DEL_1.PS
SN_FRING1_DEL_2.PS
SN_FRING1_RAT_1.PS
SN_FRING1_RAT_2.PS
SN_FRING1_SNR_1.PS
SN_FRING1_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
POSSM01_AP_02.PS
POSSM01_AP_01.PS


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
Only phase self-cal was performed with selfflag false, 3,4 mode. There were two fetures with separation about 4 mas in N-S direction, which are consistent with USNO images.

Image
Ampl, Phase vs (u,v) Distance
PS (87 kb)
JPEG (61 kb)
 Ampl, Phase vs Time
PS (237 kb)
JPEG 1, 2, 3		 (u,v) Coverage
PS (46 kb)
JPEG (37 kb)
Closure Phase vs Time
PS (157 kb)
JPEG 1		 Clean Image
PS (33 kb)
JPEG (45 kb)
Modelfit
Ampl, Phase vs (u,v) Distance
PS (87 kb)
JPEG (61 kb)
 Ampl, Phase vs Time
PS (237 kb)
JPEG 1, 2, 3		 (u,v) Coverage
PS (46 kb)
JPEG (37 kb)
Closure Phase vs Time
PS (156 kb)
JPEG 1		 Image with model components
PS (33 kb)
JPEG (39 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)
0.326478 0.0670802 -124.471 0.505536 0.563758 32.6735 0.1106
0.163812 3.75993 175.090 1.46804 0.401814 -21.5676 0.0092
(*) Quoted Brightness temperatures assume Gaussian components and are in the local (z=0) frame.


Last updated on Sun Nov 11 23:23:15 GMT 2001
by db_results.pl version 0.3.