VS01e Results
Submitted checklist.txt and checklist.tex is also available		   [Summary | AIPS | Difmap ]
Analyst: Matt Lister
Date Prepared: 14-04-1999
 

Summary
 
Observation code : VS01e    AIPS Version : 15APR99   
Date of Observation : 1998/170    Difmap Version : 2.3c 
Source Name : 1921-293    vsop_difmap used : Yes 
Calibration Source(s) :          
Ground telescopes : SC, OV, LA  Model Fitted to data : No 
Tracking Station(s) : RZ    Image made : Yes 
Correlator : Socorro         

 
Abstract
Terrible UV coverage, only 1.5 hr of data. No luck with modelfitting, but got a crude image with difmap.


AIPS Data Reduction Notes
 
Task
Adverbs
CL
in
SN
in
CL
out
SN
out
Comments
FITLD douvcomp = 1
clint = 0.25
digicor = 1
delcorr = 1
 
 
 
 
  
INDXR cparm = 0, 0, 0.25
 
 
1 
 
  
OBTAB aparm = 1,0
 
 
 
 
  
UVFLG infil = 'uvflg.txt'
 
 
 
 
  
ACCOR solint = 5
1 
 
2 
1 
  
ANTAB
 
 
 
 
 VLBA gain file and TSYS data from aspen used. Gain for SC modified to take into account shift of baseband 5 GHz observing frequency post Dec 97. (See ANTAB.TXT) 
APCAL
2 
 
3 
2 
  
CLCOR opcode 'cloc'
3 
 
4 
 
 Initial fringe found delay of -47 ns for RZ -20 ns for OV and -20 ns for SC 
FRING docalib = 1
gainuse = 4
dofit = 0
solint = 5
refant = 4
dparm = 1,400,200,0
cparm = 2,0,0,0,0,1,5,0,1,0
4 
 
5 
3 
  
SPLIT aparm 2,0,1; gainuse 5
 
 
 
 
  
FITTP
 
 
 
 
 Data written out for analysis in Difmap 

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

Additional Files
NameDescription
radplot.psradplot from DIFMAP
tplot.pstplot from DIFMAP

AIPS Output Files
LISTR.LIS
DTSUM_1.LIS
PRTAN.LIS
UVPLT_UV.PS
SN_APCAL_AMP_1.PS
SN_FRING1_DEL_1.PS		 SN_FRING1_DEL_2.PS
SN_FRING1_RAT_1.PS
FIN_SN_PHAS1.PS
FIN_SN_PHAS2.PS
SN_FRING1_SNR_1.PS
SN_FRING1_SNR_2.PS		 SN_ACCOR_AMP_1.PS
SN_ACCOR_AMP_2.PS
SN_APCAL_AMP_2.PS
SN_FRING1_RAT_2.PS
POSSM01_AP_1.PS


Difmap Data Reduction Notes
Phase selfcal applied? Yes
Global amplitude selfcal (gscal) applied? Yes
Amplitude selfcal on non-global timescales used? Yes
Modelfit made and saved? No
Image Made and saved? Yes
Comments on Difmap processing
No successful modelfit was obtained - UV coverage too poor.

Image
Ampl, Phase vs (u,v) Distance
PS (28 kb)
JPEG (35 kb)
 Ampl, Phase vs Time
PS (95 kb)
JPEG 1, 2		 (u,v) Coverage
PS (16 kb)
JPEG (25 kb)
Closure Phase vs Time
PS (74 kb)
JPEG 1		 Clean Image
PS (57 kb)
JPEG (44 kb)


Last updated on Thu Nov 30 01:10:41 GMT 2000
by db_results.pl version 0.3.