EVN User Experiment Pipeline Feedback


Pipeline feedback for experiment EM100D. If you have any comments on this experiment please email the address below.
A detailed description of the pipeline output is available.

Last updated: Fri July 5 15:53:26 CEST 2013 duev@jive.nl

General Comments. ( Brief data summary and scan listing )
L band phase-referencing experiment, observed on 14 March 2013. Data rate was 1 Gbps (16 X 16 MHz subbands, dual polarization, 2 bit sampling). The target source 'J0941+3944' was calibrated using the phase-reference source 'J0939+4141'. 'J0927+3902' was the fringe finder and bandpass calibrator. Participating telescopes were Effelsberg, Jodrell Bank, Westerbork, Onsala, Medicina, Noto, Torun, Svetloe, Zelenchukskaya, Badary, Urumqi, Shanghai. Medicina observed at 512 Mbps (but used 1-bit sampling to recover the full bandwidth).

The EVN reliability indicator (ERI) for this experiment was ERI = 0.92 . ERI* = 0.92 . (Ef=0.4 (snow), Jb=1, Wb=0.77, On=1, Mc=0.99, Nt=1, Tr=1, Sv=1, Zc=1, Bd=1, Ur=0.99, Sh=1)

Plots of the autocorrelations
Comments.
Each scan plotted separately, all stations. RFI at all antennas.

plots of the uncalibrated amplitude and phase against time
Comments.
Full-experiment on Tr-* baselines, no calibration applied. A 1.5-minute plot-averaging was used.

Plots of the uncalibrated amplitude and phase against frequency channel
Comments.
Scalar averaged Tr-* baselines, each scan plotted separately. No calibration applied yet. RFI on some baselines.

The uncalibrated amplitude and phase of the crosshand correlations against frequency channel (not available)
Comments.
Scalar averaged Tr-* baselines for LR, each scan plotted separately. No calibration applied yet.

TSYS against time
Comments.
TY1 table.

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.
Gain amplitude from CL2 table.

Fringe-fit phase solutions (including Parallactic Angle correction).
Comments.
CL3 station phase solutions -- CL3 = CL2+SN2, thus also includes the initial amplitude/parallactic angle calibration from CL2 and the fringe solutions from SN2.

Fringe-fit delay solutions
Comments.
SN2 station delay solutions for the fringed sources.

Fringe-fit rate solutions
Comments.
SN2 station rate solutions.

Telescope bandpasses
Comments.
Bandpass table 1.

Calibrated amplitude and phase against time (a priori amplitude calibration and fringe-fit solutions applied).
Comments.
Full-experiment for Tr-* baselines, calibrated with CL3.

Calibrated amplitude and phase against frequency channel
Comments.
Tr-* baselines calibrated with CL3 and BP1.

Naturally weighted dirty map (not useful for bright sources) produced before self-cal of:
J0941+3944: pdf , or FITS .
J0939+4141: pdf (not available) , or FITS (not available) .
J0927+3902: pdf (not available) , or FITS (not available) .
Comments.

Uniformly weighted dirty map (not useful for bright sources) produced before self-cal of:
J0941+3944: pdf , or FITS .
J0939+4141: pdf (not available) , or FITS (not available) .
J0927+3902: pdf (not available) , or FITS (not available) .
Comments.

Phase corrections applied to a priori calibrated and fringe-fitted data by self-calibration.
J0941+3944 (not available) .
J0939+4141 .
J0927+3902 .
Comments.
Plots of post-SPLIT tables SN1 for the sources.

Amplitude corrections applied to a priori calibrated and fringe-fitted data by self-calibration.
J0941+3944: pdf (not available) , or text file (not available) , or statistical summary (not available) .
J0939+4141: pdf , or text file , or statistical summary .
J0927+3902: pdf , or text file , or statistical summary .
Comments.
As above, but for the post-SPLIT table SN2.

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.
CL4 gain-amp.

Residual closure phase (visibility closure phase with model closure phase subtracted) for:
J0941+3944 (not available) .
J0939+4141 .
J0927+3902 .
Comments.
Separate files per (fringed) source, showing closure phase plots for all the triangles. Only stokes=I shown.

Calibrated visibilities and the source model of:
J0941+3944 (not available) .
J0939+4141 .
J0927+3902 .
Comments.
For the fringed source, plots of amp/phase on Tr-* baselines, calibrated with (post-SPLIT) table CL3, with a model-line overplotted.

Calibrated visibilities against u,v distance for:
J0941+3944: pdf , or png .
J0939+4141: pdf , or png .
J0927+3902: pdf , or png .
Comments.
For each source, a plot of amp vs. |uv| distance.

u,v coverage for:
J0941+3944: pdf , or png .
J0939+4141: pdf , or png .
J0927+3902: pdf , or png .
Comments.
For each source, a plot of the u-v coverage.

Crude maps of sources:
J0941+3944: pdf , or FITS .
J0939+4141: pdf , or FITS .
J0927+3902: pdf , or FITS .
Comments.
For each source, a CLEAN map resulting from the automated fringing and self-cal iterations in the pipeline script.