VS10g Results
Submitted checklist.txt and checklist.tex is also available		   [Summary | AIPS | Difmap ]
Analyst: Sandor Frey
Date Prepared: 06-09-2000
 

Summary
 
Observation code : VS10g    AIPS Version : 15APR99   
Date of Observation : 1999/274    Difmap Version : 2.3c 
Source Name : J0539-2839    vsop_difmap used : No 
Calibration Source(s) : 0402-362         
Ground telescopes : AT, Hobart, Mopra, Hartebeesthoek  Model Fitted to data : Yes 
Tracking Station(s) : GZ, UZ    Image made : Yes 
Correlator : Penticton         

 
Abstract
GOT experiment code v047h. The source 0537-286 (z=3.104) has apparently undergone an outburst since the pre-launch survey (June 1996). No extended structure is seen. Quite high brightness temperature.
Model
Flux (Jy)
Radius (mas)
Theta (deg)
Major (mas)
Axial ratio
Phi (deg)
TB (10^12 K)
0.952843 0.0283433 -37.5767 0.223352 0.631846 -78.2825 1.4752
(*) 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 doconcat = 1
clint = 0.5
digicor = -1
delcor = -1
 
 
 
 
 file read in 7 pieces #--------------------------------------------------------- 
MSORT sort = 'tb'
 
 
 
 
  
FIXWT bif = 1
bchan = 100
xinc = 10
detime = -1
 
 
 
 
  
INDXR cparm = 0, 0, 0.25, 0
 
 
1 
 
 Input scan break taken from PI letter. 
TABED inext = 'an'
inver = 1
outver = 1
optyp = 'repl'
aparm = 5, 0, 0, 6, 0
bcount = 3
ecount = 3
keyvalue = 0
 
 
 
 
 fix incorrect antenna type (MNTSTA: altaz->0) in column 5, row 3 of AN table for HartRAO 
TABED same as above, except:
bcount = 5
ecount = 5
keyvalue = 0
 
 
 
 
 fix incorrect antenna type (MNTSTA: altaz->0) in column 5, row 5 of AN table for HOBART 
TABED same as above, except:
bcount = 2
ecount = 2
keyvalue = 2,0
 
 
 
 
 fix incorrect antenna type (MNTSTA: orbiter->2) in column 5, row 2 of AN table for VSOP_SC 
ANTAB tyver = 1
gcver = 1
 
 
 
 
 Gain curve information from VSOP calibration web page. Nominal Tsys used for Mopra, Tidbinbilla and HALCA. 
APCAL
 
 
 
1 
  
CLCAL opcode = 'cali'
interpol = '2pt'
refant = 1
1 
1 
2 
 
 Amplitude calibration solutions applied; refant=AT 
TACOP
2 
 
3 
 
 Prepare a copy of CL table before shifting delays 
CLCOR opcode = 'sbdl'
antenn = 2,0
timer = 0 16 0 0 0 21 1 56
clcorprm = 2600
3 
 
3 
 
 VSOP_SC delay offset from DQA plots during Usuda pass #1; timerange end specified at a downlink loss reported in the PI-letter 
FRING docalib = 1
flagver = -1
refant = 1
search = 3, 4, 5
solint = 5
aparm = 2, 0, 0, 0, 2, 1,
   3, 0, 1, 0
dparm = 3, 220, 280, 0
3 
 
 
2 
 Delay & rate search windows 220 ns & 280 mHz. SNR threshold 3. FRING stopped before 0 22 0 0 due to insufficient memory 
FRING docalib = 1
flagver = -1
timer 0 22 0 0 1 1 0 0
refant = 1
search = 3, 4, 5
solint = 5
aparm = 2, 0, 0, 0, 2, 1,
   3, 0, 1, 0
dparm = 3, 200, 150, 0
3 
 
 
3 
 Delay & rate search windows reduced to 200 ns & 150 mHz. (the period with large delay rates for VSOP_SC seen on DQA plots is passed already in the first FRING run) 
CLCAL opcode = 'cali'
interpol = 'ambg'
timer 0 16 0 0 0 22 0 0
3 
2 
4 
 
 Fringe-fit solutions (1st part) applied. 
CLCAL opcode = 'cali'
interpol = 'ambg'
timer 0 22 0 0 1 1 0 0
3 
3 
4 
 
 Fringe-fit solutions (2nd part) applied. 
SPLIT aparm = 2, 1.44, 0, 1, 0
4 
 
 
 
 Create single-source files, IFs averaged 
FITTP
 
 
 
 
 Data written out for analysis in Difmap. 

AIPS Input Files
ANTAB.TXT
INDXR.TXT		 Comments
No measured Tsys for AT, MP and HALCA, nominal values are used.

AIPS Output Files
DTSUM_0.LIS
DTSUM_1.LIS
LISTR.LIS
PRTAN.LIS
POSSM01_AP_1.PS
POSSM01_AP_2.PS
POSSM02_AP_1.PS
POSSM02_AP_2.PS
POSSM03_AP_1.PS
POSSM03_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		 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


Difmap Data Reduction Notes
Phase selfcal applied? Yes
Global amplitude selfcal (gscal) applied? Yes
Amplitude selfcal on non-global timescales used? No
Modelfit made and saved? Yes
Image Made and saved? Yes
Comments on Difmap processing
data averaged into 30 s bins uvw 2,0 gscale a priori amplitude calibration is quite good; no extended structure seen

Image
Ampl, Phase vs (u,v) Distance
PS (51 kb)
GIF (7 kb)
 Ampl, Phase vs Time
PS (280 kb)
GIF 1, 2, 3		 (u,v) Coverage
PS (28 kb)
GIF (5 kb)
Closure Phase vs Time
PS (270 kb)
GIF 1, 2		 Clean Image
PS (39 kb)
GIF (40 kb)
Modelfit
Ampl, Phase vs (u,v) Distance
PS (51 kb)
GIF (7 kb)
 Ampl, Phase vs Time
PS (279 kb)
GIF 1, 2, 3		 (u,v) Coverage
PS (28 kb)
GIF (5 kb)
Closure Phase vs Time
PS (269 kb)
GIF 1, 2		 Image with model components
PS (45 kb)
GIF (8 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)
0.952843 0.0283433 -37.5767 0.223352 0.631846 -78.2825 1.4752
(*) Quoted Brightness temperatures assume Gaussian components and are in the local (z=0) frame.


Last updated on Mon Sep 18 14:27:08 GMT 2000
by db_results.pl version 0.2.0.