VS11q Results
Submitted checklist.txt and checklist.tex is also available
  [Summary | AIPS | Difmap ]
Analyst: Shinjii HORIUCHI
Date Prepared: 31-07-1999
 

Summary
 
Observation code : VS11q    AIPS Version : 15OCT99   
Date of Observation : 1998/7    Difmap Version : 2.3c 
Source Name : J1305-1033    vsop_difmap used : Yes 
Calibration Source(s) : 1334-127/         
Ground telescopes : HA, MP  Model Fitted to data : Yes 
Tracking Station(s) : TZ, GZ    Image made : Yes 
Correlator : Pentictn         

 
Abstract
This is one of two GRT experiments. Good signal with MP-TZ and HA-GZ. The pase clouser condition is fulfiled only for 10 minites, so selfflag false, 3, 4 was set before the selfcal. The source seems to be compact and amplitude vs. uv-distant plot shows 0.4-0.5 Jy upto 400Mlambda. Eventhough only one baseline is avairable at almost all time, Halca provides not too bad uv-coverage. Model fit was performed with a single circular and a elliptical gassian models, which is consistent with ground images avairable at 2.3GHz and 8GHz. For this simple structure source, further re-observation may not much improve the results.

EBF 07-OCT-2005:

Did combined selfcal in AIPS. VSOPx1.4 to be more consistent Fit one component and because of VSOP scaling, it is difficult to believe a core diameter.

Core <0.20

Model
Flux (Jy)
Radius (mas)
Theta (deg)
Major (mas)
Axial ratio
Phi (deg)
TB (10^12 K)
0.410128 0.0187286 15.7878 0 0 0 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
 
 
 
 
Files can not be concatinated because of wrong obs. date. 
INDXRL
 
 
 
 
 
FRING Solint=5, APARM(7)=0.1,
DPARM=1,2500,100,0, REFANT=3
 
 
clear detection eventhough wider search windows 
TACOP
 
 
 
CLCOR OPTY='SBDL', ANTEN=1,
   CLCORP=1870,1870,
TIMERANG = 0/23:00:00.00
   to 1/03:00:00.00
 
 
 
CLCOR OPTY='SBDL', ANTEN=3,
   CLCORP=940,940
TIMERANG = 0/23:00:00.00
   to 1/03:00:00.00
 
 
 
FRING Solint=5, APARM(7)=0.1,
DPARM=1,15,25,0, REFANT=2
 
 
nallower search window around constant offsets. 
ANTAB
 
 
 
 
 
APCAL
 
 
 
 
CLCAL
CL2 
SN2, SN6 
CL3 
 
 
CLCAL SMOTYPE = 'AMPL'
 
 
SPLIT
 
 
 
 
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_APCAL_AMP_1.PS
SN_APCAL_AMP_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
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_1.PS
POSSM02_AP_1.PS
POSSM02_AP_2.PS
POSSM01_AP_2.PS
POSSM01_AP_3.PS
POSSM02_AP_3.PS
IMAGE.FITS



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 pase clouser condition is fulfiled only for 10 minites, so selfflag false, 3, 4 was set before the selfcal. The source seems to ba compact and amplitude vs. uv-distant plot shows 0.4-0.5 Jy upto 400Mlambda. Model fit was performed with a single circular and a elliptical gassian models.

EBF: 07-OCT-2005:

Did selfcal in AIPS. Data set is J1305_AIPS.FITS

Core 0.15 +/- 0.10 (probably not resolved)


Image
Ampl, Phase vs (u,v) Distance
PS (28 kb)
JPEG (43 kb)
Ampl, Phase vs Time
PS (89 kb)
JPEG 1, 2
(u,v) Coverage
PS (16 kb)
JPEG (26 kb)
Closure Phase vs Time
PS (55 kb)
JPEG 1
Clean Image
PS (28 kb)
JPEG (48 kb)
Modelfit
Ampl, Phase vs (u,v) Distance
PS (28 kb)
JPEG (42 kb)
Ampl, Phase vs Time
PS (89 kb)
JPEG 1, 2
(u,v) Coverage
PS (16 kb)
JPEG (26 kb)
Closure Phase vs Time
PS (55 kb)
JPEG 1
Image with model components
PS (28 kb)
JPEG (35 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)
0.410128 0.0187286 15.7878 0 0 0 0.0000
(*) Quoted Brightness temperatures assume Gaussian components and are in the local (z=0) frame.



Last updated on Tue Oct 11 03:16:08 UTC 2005
by db_results.pl version 0.3.