VS04Z1 Results
Submitted checklist.txt and checklist.tex is also available		   [Summary | AIPS | Difmap ]
Analyst: Richard Dodson
Date Prepared: 21-09-2002
 

Summary
 
Observation code : VS04Z1    AIPS Version : 31DEC00   
Date of Observation : 2002/222    Difmap Version : 2.4a 
Source Name : J1504+10    vsop_difmap used : No 
Calibration Source(s) : J1550+05,J1415+13         
Ground telescopes : UD SH KL  Model Fitted to data : Yes 
Tracking Station(s) : UZ    Image made : Yes 
Correlator : Mitaka         

 
Abstract
Very poor orbit determination at the end of the pass.
Model
Flux (Jy)
Radius (mas)
Theta (deg)
Major (mas)
Axial ratio
Phi (deg)
TB (10^12 K)
0.874973 0.343549 -148.758 0.322118 1.00000 180.000 0.4115
0.524270 0.292326 110.873 0.636425 1.00000 0.00000 0.0632
0.0327960 1.76511 50.9649 0.00000 1.00000 0.00000 0.0000
(*) 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
 
 
 
2 
  
ACCOR solint 5
 
 
 
1 
 This really needs flagging. 
CLCAL refant=1;
1 
1,2 
2,3 
 
 Amplitude calibration solutions applied. Usuda as ref 
CLCOR opcode 'gain';antenna 0;clcorprm
   1.13,0
opcode 'gain';antenna 0;clcorprm
   1/sqrt(1.13),0
3 
 
3 
 
 corrections 
FRING dparm 2,0,0,0,0.5,0;aparm(7)=0.1;solint
   10
3 
 
 
3 
  
FRING dparm 2,4000,2000,0,0.5,0;aparm(7)=0.1;solint
   5,10,15
 
 
 
4,5,6 
  
CLCAL interpol 'poly'/'ambg';intparm
   5 0
3,4 
6,7 
4,5 
 
  
SNEDT/CLCAL interpol 'self'/'ambg'/'poly'/'cube';intparm
   3 0
3 
3 
6,7 
8 
 Search for best solution. 6 is cube, 7 is poly 
KRING cparm 0.5,30,30/100,-1;solint
    5/10/5/1;dofit 3;solm
   ''/'nr'
 
 
 
9,10,11,12,13 
 The rates are HUGE for VSOP at the end ~ 1Hz. No good after 9:30 
CLCAL interpol
   'ambg'/'cube'/'self';
6 
12,13 
8,9 
 
 self is best. 1 minute solutions at the end 
SPLIT aparm(1)=2 0;
9 
 
 
 
 Av within IF 
FITTP
 
 
 
 
 Data written out for analysis in Difmap 

AIPS Input Files
Comments
- None -

AIPS Output Files
PRTAN.LIS
DTSUM_0.LIS
DTSUM_1.LIS
LISTR.LIS
POSSM.PS
SN_ACCOR_AMP_1.PS
SN_ACCOR_AMP_2.PS
SN_APCAL_AMP_1.PS
SN_APCAL_AMP_2.PS
SN_CALIB_DEL_1.PS		 SN_CALIB_DEL_2.PS
SN_CALIB_PHA_1.PS
SN_CALIB_PHA_2.PS
SN_CALIB_RAT_1.PS
SN_CALIB_RAT_2.PS
SN_CALIB_SNR_1.PS
SN_CALIB_SNR_2.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
UVPLT_UV.PS
UVPLT_UVD.PS
UVPLT_UVPA.PS
VPLOT.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
The uv coverage is a straight line. Makes the deconvolution ... fun.

The PLS model fits the baselines less than 100ML.

Image
Ampl, Phase vs (u,v) Distance
PS (30 kb)
JPEG (39 kb)
 Ampl, Phase vs Time
PS (83 kb)
JPEG 1, 2		 (u,v) Coverage
PS (17 kb)
JPEG (26 kb)
Closure Phase vs Time
PS (50 kb)
JPEG 1		 Clean Image
PS (41 kb)
JPEG (49 kb)
Modelfit
Ampl, Phase vs (u,v) Distance
PS (21 kb)
JPEG (38 kb)
 Ampl, Phase vs Time
PS (76 kb)
JPEG 1, 2		 (u,v) Coverage
PS (17 kb)
JPEG (26 kb)
Closure Phase vs Time
PS (48 kb)
JPEG 1		 Image with model components
PS (825 bytes)
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)
0.874973 0.343549 -148.758 0.322118 1.00000 180.000 0.4115
0.524270 0.292326 110.873 0.636425 1.00000 0.00000 0.0632
0.0327960 1.76511 50.9649 0.00000 1.00000 0.00000 0.0000
(*) Quoted Brightness temperatures assume Gaussian components and are in the local (z=0) frame.


Last updated on Tue Sep 21 09:12:00 GMT 2004
by db_results.pl version 0.3.