EVN User Experiment Pipeline Feedback


Pipeline feedback for experiment EM058A_1. 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 Jun 12 11:06:10 CEST 2006 campbell@jive.nl

General Comments. ( Brief data summary and scan listing )
EM058A had 8 stations, 2 2MHz IFs, and two polarizations. There were separate continuum (128 frequency points per IF/pol) and line (1024 frequency points over the lower IF only) passes, and integrations times were 2s. The continuum & line passes produced separate sets of FITS files. This pipelining (EM058A_1*) corresponds to the continuum pass. Considerably more information is included in the experiment's cover letter on the standard-plots portion of the EVN Archive. In the pipelining, all sources were fringed, except 05358+35, which was phase-referenced from J0530+3723. The SOLINT was 3min (scan lengths for J0530).

The EVN reliability indicator (ERI) for this experiment was ERI = 0.723 . ERI* = 0.750 . The ERI was 0.723. The much weaker-than-expected fringes to Jb were considered a total loss of the station. Ef missed about 1.5hr due to snow, which is also reflected in ERI, but not ERI*.

Plots of the autocorrelations
Comments.
467 pages, each scan plotted separately, all stations (~2p/scan).

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

Plots of the uncalibrated amplitude and phase against frequency channel
Comments.
464 pages, scalar averaged Tr-* baselines, each scan plotted separately. No calibration applied yet.

The uncalibrated amplitude and phase of the crosshand correlations against frequency channel (not available)
Comments.

TSYS against time
Comments.
4 pages, TY1 table, each IF/pol on a separate plot.

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.
4 pages, gain amplitude from CL2 table.

Fringe-fit phase solutions (including Parallactic Angle correction).
Comments.
4 pages, CL3 station phase solutions -- CL3 = CL2+SN2, thus also includes the initial amplitude/parallactic angle calibration from CL2 and the fringe solutions from SN2. Ef is the principal reference station; it's plot shows the effect of the parallactic angle correction.

Fringe-fit delay solutions
Comments.
4 pages, SN2 station delay solutions for the fringed sources, each IF/pol on a separate plot. Very few Jb points remain after fringing.

Fringe-fit rate solutions
Comments.
4 pages, SN2 station rate solutions.

Telescope bandpasses
Comments.
2 pages, bandpass table 1. Sources DA193 & 3C84 were used for bandpass calibration.

Calibrated amplitude and phase against time (a priori amplitude calibration and fringe-fit solutions applied).
Comments.
8 pages, full-experiment for Tr-* baselines, calibrated with CL3. The 1.5-min plot-averaging still applied.

Calibrated amplitude and phase against frequency channel
Comments.
407 pages; Tr-* baselines calibrated with CL3 and BP1. The amp and phase plots sef-scale, not necessarily going down to 0 in the case of the amps.

Naturally weighted dirty map (not useful for bright sources) produced before self-cal of:
J0530+3723: pdf (not available) , or FITS (not available) .
05358+35: pdf , or FITS .
3C84: pdf (not available) , or FITS (not available) .
DA193: pdf (not available) , or FITS (not available) .
Comments.
Natural-weighted (dirty) map for 05358+35.

Uniformly weighted dirty map (not useful for bright sources) produced before self-cal of:
J0530+3723: pdf (not available) , or FITS (not available) .
05358+35: pdf , or FITS .
3C84: pdf (not available) , or FITS (not available) .
DA193: pdf (not available) , or FITS (not available) .
Comments.
Uniform-weighted (dirty) map for 05358+35.

Phase corrections applied to a priori calibrated and fringe-fitted data by self-calibration.
J0530+3723 .
05358+35 (not available) .
3C84 .
DA193 .
Comments.
Plots of post-SPLIT tables SN1 for the sources J0530+3723, 3C84, and DA193. 3-4 pages per source (depending on whether any Jb data gets through).

Amplitude corrections applied to a priori calibrated and fringe-fitted data by self-calibration.
J0530+3723: pdf , or text file , or statistical summary .
05358+35: pdf (not available) , or text file (not available) , or statistical summary (not available) .
3C84: pdf , or text file , or statistical summary .
DA193: 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:
J0530+3723 .
05358+35 (not available) .
3C84 .
DA193 .
Comments.
Separate files per (fringed) source, showing closure phase plots for all the triangles (not just Tr-*-*). Only stokes=I shown. 7-12 pages per source.

Calibrated visibilities and the source model of:
J0530+3723 .
05358+35 (not available) .
3C84 .
DA193 .
Comments.
For each (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:
J0530+3723: pdf , or png .
05358+35: pdf , or png .
3C84: pdf , or png .
DA193: pdf , or png .
Comments.
For each source, a plot of amp vs. |uv| distance.

u,v coverage for:
J0530+3723: pdf , or png .
05358+35: pdf , or png .
3C84: pdf , or png .
DA193: pdf , or png .
Comments.
For each source, a plot of the u-v coverage.

Crude maps of sources:
J0530+3723: pdf , or FITS .
05358+35: pdf , or FITS .
3C84: pdf , or FITS .
DA193: pdf , or FITS .
Comments.
For each source, a CLEAN map resulting from the automated fringing and self-cal iterations in the pipeline script, or from the automated phase-referencing in the case of 05358+35.