VS06z Results
Submitted checklist.txt and checklist.tex is also available		   [Summary | AIPS | Difmap ]
Analyst: Georgina Coldwell
Date Prepared: 26-07-2002
 

Summary
 
Observation code : VS06z    AIPS Version : 31DEC02   
Date of Observation : 2001/208    Difmap Version : 2.3c 
Source Name : J0149+05    vsop_difmap used : Yes 
Calibration Source(s) : J0204+15, J0423-01         
Ground telescopes : CEDUNA, HOBART, KALYAZIN, MOP, SESHAN25  Model Fitted to data : Yes 
Tracking Station(s) : USUDA, ROBLEDO    Image made : Yes 
Correlator : Penticton         

 
Abstract
FIXWT aborted - we had to cut the data to two parts, run FIXWT and then DBCON them together. Ten minutes of data have been lost because in that timerange FIXWT failed. There were no fringes to Hobart. Kalyazin amplitudes have been scaled up by 1.9 based on comparison with other baselines. We couldn't apply amplitude selfcalibration in Difmap because Kalyazin was completely flagged after selfcal. The image shows a double structure, in accordance with VSOP PLS modelfit results.
Model
Flux (Jy)
Radius (mas)
Theta (deg)
Major (mas)
Axial ratio
Phi (deg)
TB (10^12 K)
0.736866 0.0353084 -55.5654 0.155779 1.00000 -56.7170 1.4818
0.533412 0.779872 113.383 0.830636 0.408689 -63.1406 0.0923
(*) 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
 
 
 
 
 Version 'old' (=31DEC99) was used (for this task only). 
UVCOP outname 'VS06Z.1', outclass
   'FITLD '
timer 0 17 59 35 0 23 22 0
 
 
 
 
  
UVCOP outname 'VS06Z.2', outclass
   'FITLD '
timer 0 23 32 0 1 3 0 6
 
 
 
 
 10 minutes of data have been lost. 
FIXWT inname 'VS06Z.1', inclass
   'FITLD '
outname 'VS06Z.1', outclass
   'FIXWT '
bif 0, bchan 0
 
 
 
 
  
FIXWT inname 'VS06Z.2', inclass
   'FITLD '
outname 'VS06Z.2', outclass
   'FIXWT '
bif 0, bchan 0
 
 
 
 
  
DBCON inname 'VS06Z.1', in2name
   'VS06Z.2'
outname 'VS06Z', outclass
   'FIXWT '
dopos 0, doarray 1
 
 
 
 
 Note that "flagver -1" was used in each task below this point, otherwise most of Kalyazin data would have been lost. 
INDXR infile 'INDXR.TXT'
cparm 0, 0, 1, 0
 
 
 
 
 version 'NEW'- Problems with version 'TST' for this task 
MSORT sort 'TB'
 
 
 
 
  
TABED inext 'an', optype 'repl'
inver 1, outver 1
aparm 5, 0, 0, 6, 0
bcount 5, ecount 5
keyval 2, 0
 
 
 
 
 Change incorrect mounting type for HALCA. 
ANTAB tyver 1; gcver 1
infile 'ANTAB.TXT'
 
 
 
 
  
APCAL tyver 1; gcver 1
aparm 0
 
 
 
1 
  
CLCAL opcode 'cali'; interpol '2pt'
1 
1 
2 
 
  
FRING timer 0, 19, 25, 0, 0, 19,
   28, 0
dparm 3,100,100,0.9
aparm 2,0,0,0,0,1,3,0,1
refant 6; search 6, 4
2 
 
 
2 
 Manual phasecal for different timerange. 
FRING timer 0, 23, 19, 0, 0, 23,
   23, 0
dparm 3,100,100,0.9
aparm 2,0,0,0,0,1,3,0,1
refant 6; search 6, 4
2 
 
 
3 
 Manual phasecal for different timerange. 
FRING timer 1, 0, 18, 0, 1, 0,
   22, 0
dparm 3,100,100,0.9
aparm 2,0,0,0,0,1,3,0,1
refant 6; search 6, 4
2 
 
 
4 
 Manual phasecal for different timerange. 
FRING timer 1, 2, 38, 0, 1, 2,
   41, 0
dparm 3,100,100,0.9
aparm 2,0,0,0,0,1,3,0,1
refant 6; search 6, 4
2 
 
 
5 
 Manual phasecal for different timerange. 
TACOP
 
2 
 
6 
  
TACOP
 
3 
 
7 
  
TACOP
 
4 
 
8 
  
TACOP
 
5 
 
9 
  
SNCOR opcode 'zrat'
 
6 
 
6 
  
SNCOR opcode 'zrat'
 
7 
 
7 
  
SNCOR opcode 'zrat'
 
8 
 
8 
  
SNCOR opcode 'zrat'
 
9 
 
9 
  
TACOP
2 
 
3 
 
  
CLCAL opcode 'calp'; interpol '2pt'
timer 0 17 3 34 0 22 59 1
2 
6 
3 
 
  
CLCAL opcode 'calp'; interpol '2pt'
timer 0 22 59 1.1 0 23 30
   25.4
2 
7 
3 
 
  
CLCAL opcode 'calp'; interpol '2pt'
timer 0 23 30 25.5 01 01
   48 03
2 
8 
3 
 
  
CLCAL opcode 'calp'; interpol '2pt'
timer 01 01 48 03.1 01 03
   01 38.95
2 
9 
3 
 
  
FRING timer 0; flagver -1
dparm 3, 100, 100, 0.9
aparm 2, 0, 0, 0, 2, 1, 3,
   0, 1
refant 6
3 
 
 
10 
 Combined IF solution. 
SNEDT
 
10 
 
11 
  
CLCAL opcode 'cali', interpol '2pt'
refant 6
3 
11 
4 
 
  
TACOP
4 
 
5 
 
  
CLCOR opcode 'gain'; clcorprm 1.9,
   0
antenna 3 0
5 
 
5 
 
 Scale up Kalyazin amplitudes by a factor of 1.9 
SPLIT source 'J0149+05', docalib 1
aparm 3 0.9 0 1, flagver -1
5 
 
 
 
  
SPLIT source 'J0204+15', docalib 1
aparm 3 0.9 0 1, flagver -1
5 
 
 
 
  
SPLIT source 'J0423-01', docalib 1
aparm 3 0.9 0 1, flagver -1
5 
 
 
 
  

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

AIPS Output Files
DTSUM_0.LIS
DTSUM_1.LIS
LISTR.LIS
PRTAN.LIS
POSSMnn_AP_1.PS
POSSMnn_AP_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
UVPLT_UV.PS
UVPLT_UVD.PS
UVPLT_UVPA.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
We couldn't apply amplitude selfcalibration in Difmap because Kalyazin was completely flagged after selfcal.

Image
Ampl, Phase vs (u,v) Distance
PS (34 kb)
JPEG (44 kb)
 Ampl, Phase vs Time
PS (183 kb)
JPEG 1, 2, 3		 (u,v) Coverage
PS (17 kb)
JPEG (28 kb)
Closure Phase vs Time
PS (144 kb)
JPEG 1		 Clean Image
PS (32 kb)
JPEG (43 kb)
Modelfit
Ampl, Phase vs (u,v) Distance
PS (34 kb)
JPEG (44 kb)
 Ampl, Phase vs Time
PS (183 kb)
JPEG 1, 2, 3		 (u,v) Coverage
PS (17 kb)
JPEG (28 kb)
Closure Phase vs Time
PS (144 kb)
JPEG 1		 Image with model components
PS (35 kb)
JPEG (40 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)
0.736866 0.0353084 -55.5654 0.155779 1.00000 -56.7170 1.4818
0.533412 0.779872 113.383 0.830636 0.408689 -63.1406 0.0923
(*) Quoted Brightness temperatures assume Gaussian components and are in the local (z=0) frame.


Last updated on Mon Jul 29 16:46:35 GMT 2002
by db_results.pl version 0.3.