EVN User Experiment Pipeline Feedback


Pipeline feedback for experiment N10L2. If you have any comments on this experiment please email the address below.
A detailed description of the pipeline output is available.

Last updated: Mon Oct 11 17:59:07 CEST 2010 mahmud@jive.nl

General Comments. ( Brief data summary and scan listing )
L band (1.6 GHz) network monitoring experiment (NME) observed on 3 Mar 2010. The data rate was 512 Mbps (16 x 8 MHz subbands, dual polarization, two-bit sampling). The experiment observed four sources 4C39.25, 1146+286, 1145+268 and 1156+295. In this pipeline reduction, Ef and Wb are the reference antennas. The target source 1146+286 was phase-referenced with source 1145+268 (both strong enough sources).
12 stations participated in the experiment: Cm, Da, Ef, Jb, On, Mc, Tr, Wb, Ur, Sh, Zc and Bd. There were fringes to all stations. Losses included: Last two scans (~15 minutes) for Bd (power outage) and Westerbork ~ 15 minutes (changing disk pack due to faulty ftp scan).

The EVN reliability indicator (ERI) for this experiment was ERI = 0.97 . ERI* = 0.97 . (Wb=0.92,Bd=0.92)

Plots of the autocorrelations
Comments.
RFI in upper and lower IFS of Mc and On. Very noisy autocorrelations for Wb.

plots of the uncalibrated amplitude and phase against time
Comments.

Plots of the uncalibrated amplitude and phase against frequency channel
Comments.

The uncalibrated amplitude and phase of the crosshand correlations against frequency channel
Comments.
Looks OK

TSYS against time
Comments.
Noisier Tsys measurements in IF 1 RR and LL for Wb. Dummy antab file for Bd used.

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.

Fringe-fit phase solutions (including Parallactic Angle correction).
Comments.

Fringe-fit delay solutions
Comments.

Fringe-fit rate solutions
Comments.

Telescope bandpasses
Comments.
For all stations; phases deviate at edges of bandpass for most stations, particularly bad for Bd. Far outliers for Cm and Da.

Calibrated amplitude and phase against time (a priori amplitude calibration and fringe-fit solutions applied).
Comments.
OK

Calibrated amplitude and phase against frequency channel
Comments.
Gibbs Ringing on all baselines.

Naturally weighted dirty map (not useful for bright sources) produced before self-cal of:
1145+268: pdf (not available) , or FITS (not available) .
1146+286: pdf , or FITS .
1156+295: pdf (not available) , or FITS (not available) .
4C39.25: pdf (not available) , or FITS (not available) .
Comments.

Uniformly weighted dirty map (not useful for bright sources) produced before self-cal of:
1145+268: pdf (not available) , or FITS (not available) .
1146+286: pdf , or FITS .
1156+295: pdf (not available) , or FITS (not available) .
4C39.25: pdf (not available) , or FITS (not available) .
Comments.

Phase corrections applied to a priori calibrated and fringe-fitted data by self-calibration.
1145+268 .
1146+286 (not available) .
1156+295 .
4C39.25 .
Comments.

Amplitude corrections applied to a priori calibrated and fringe-fitted data by self-calibration.
1145+268: pdf , or text file , or statistical summary .
1146+286: pdf (not available) , or text file (not available) , or statistical summary (not available) .
1156+295: pdf , or text file , or statistical summary .
4C39.25: pdf , or text file , or statistical summary .
Comments.

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.

Residual closure phase (visibility closure phase with model closure phase subtracted) for:
1145+268 .
1146+286 (not available) .
1156+295 .
4C39.25 .
Comments.

Calibrated visibilities and the source model of:
1145+268 .
1146+286 (not available) .
1156+295 .
4C39.25 .
Comments.

Calibrated visibilities against u,v distance for:
1145+268: pdf , or png .
1146+286: pdf , or png .
1156+295: pdf , or png .
4C39.25: pdf , or png .
Comments.

u,v coverage for:
1145+268: pdf , or png .
1146+286: pdf , or png .
1156+295: pdf , or png .
4C39.25: pdf , or png .
Comments.

Crude maps of sources:
1145+268: pdf , or FITS .
1146+286: pdf , or FITS .
1156+295: pdf , or FITS .
4C39.25: pdf , or FITS .
Comments.