EVN User Experiment Pipeline Feedback
Pipeline feedback for experiment EB019.
If you have any comments on this experiment please email
the
address below.
Last updated: Mon Jun 10 23:56:17 CEST 2002
imai@jive.nl
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General Comments.
This project consists of 8 stations. IF4 in L-pol and IF3 in R-pol at Tr, IF1 in R-pol and IF4 in R&L-pols at Cm, IF3 in R-pol and IF4 in L-pol were unavailable in data. Ef is a reference antenna. ERI=0.69 (Eb=0.99, Jb=1.0, Mc=0.88, Nt=0.83, Tr=0.87, Wb=0.99, On=0.98, Cm=0.50), ERI*=0.69 (artificial errors only).
Plots of the autocorrelations.
Comments.
Cm: Unbalanced sensitivity along the bands.
Plots of the uncalibrated amplitude and phase against time.
Comments.
Jb: Fast phase drift.
Mc: No data 16:50 - 17:35, 17:40 -18:05, and 20:10 - 20:30
Nt:: No data 16:00 - 16:20, fast phase drift 18:10 - 19:00
Tr: Fast phase drift.
Wb: Fast phase drift.
On: No data 16:20 - 16:45 IF4 LL
Cm: Fast phase drift.
Plots of the uncalibrated amplitude and phase against frequency
channel.
Comments.
Wb: Very steep phase gradient.
Tr: Low amplitude in IF4 LL and IF3 RR.
Cm: Low amplitude in IF1&4
On: Unavailable in IF2&4 16:24 - 16:28
Nt: Low amplitude in all IFs 18:14 - 19:00
The uncalibrated amplitude and phase of the crosshand
correlations against frequency channel.
Comments.
No data.
TSYS against time.
Comments.
No lost data, except Hh 16:20 - 17:30 but not included in correlation.
Telescope sensitivities from the a priori TSYS and Gain
curves (the square of this number gives the antenna noise (SEFD) in Jy - the smaller the better).
Comments.
Nt: IF2 poor sensitivity 18:50-19:00
Cm: IF1&4 no data.
Mc: 130 % of that in the status report.
On: 190 % of that in the status report.
Cm: 140 % of that in the status report.
Fringe-fit phase solutions.
Comments.
Jr, Tr, Wb, Cm: Rapid phase wrap - large clock rate offsets.
Fringe-fit delay solutions.
Comments.
Wb: Delay residual larger than 500 ns.
Fringe-fit rate solutions.
Comments.
Jr, Cm: Rate residual larger than 5 mHz.
Telescope bandpasses.
Comments.
Cm, Wb: large amplitude of phase slopes.
Calibrated amplitude and phase against time
(a priori amplitude calibration and fringe-fit solutions applied).
Comments.
Nt: phase wrap 18:10-19:00
Cm: IF1 Poor phase interpolation due to discrepant rate solutions, IF4 No data.
Calibrated amplitude and phase against frequency channel.
Comments.
Jb, Mc, On: peak in channel 10 in IF2.
Wb: Small phase gradients in all Ifs.
Cm: Phase wrap in IF1, phase gradient in IF2.
Phase corrections applied to a priori calibrated and fringe-fitted data by self-calibration.
Comments.
No comment.
Amplitude corrections applied to a priori calibrated and fringe-fitted data by self-calibration.
Also available as a text file.
Comments.
No comment.
Telescope sensitivities (the total AMP gain applied during
both a priori and self calibration; the square of this number gives the antenna
noise (SEFD) in Jy).
Comments.
Jb: IF1 RR 150 % of that in the status report.
Mc: 160 % of that in the status report 19:35-19:45.
Nt: IF2 poor sensitivity 18:50-19:00.
Tr: IF3 R-Pol data unavailable, 70 % of that in the status report.
Wb: IF4 LL/RR 150 % of that in the status report.
On: 210 % of that in the status report.
Cm: IF1&4 no data, 140 % of that in the status report.
Residual closure phase (visibility closure phase with
model closure phase subtracted) for J1229+0203.
Residual closure phase (visibility closure phase with
model closure phase subtracted) for J1232-0224.
Comments.
For J1232-0224:
Nt-Tr-Wb: Residual wrap
Closures including Cm are available only 30 min.
For J1229+0203:
Residual wraps 19:40
Calibrated visibilities and the source model of
J1229+0203.
Calibrated visibilities and the source model of
J1232-0224.
Comments.
For J1232-0224:
Large offset from the model 20:10
For J1229+0203: No comment.
Calibrated visibilities against u,v distance for
J1229+0203.
Calibrated visibilities against u,v distance for
J1232-0224.
Comments.
u,v coverage for
J1229+0203.
u,v coverage for
J1232-0224.
Comments.
Crude map of J1229+0203 from the pipeline.
Crude map of J1232-0224 from the pipeline.
Comments.
J1232-0224: Elongated morphology, two sidelobes.
J1229+0203: Elongated morphology, a strong sidelobe or a second component.