EVN User Experiment Pipeline Feedback


Pipeline feedback for experiment EO009_4. 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 Mar 25 14:15:04 CET 2013 campbell@jive.nl

General Comments. ( Brief data summary and scan listing )
The continuum correlation of EO009 had 10 stations, 2 16MHz IFs, two polarizations, 32 frequency points per IF/pol, and 2s integrations. The continuum correlation used multiple phase-centers corresponding to 7 output targets; this pipelining is for NGC1275. The other targets showed significant effects of 3C84 being so close, so weren't pipelined. Considerably more information is included in the experiment's cover letter on the standard-plots portion of the EVN Archive. This pipelining corresponds to the FITS files that have different source names for the "normal" or "swapped" patchings: "normal" patching keeps the statndard source names, "swapped" patchings prefix "DG" to the source names. Thus there are two source-related plots for each physical target, each "having" half the scans. The SOLINT was set to 150s. Ef, and then Mc, were used as the reference stations.

The EVN reliability indicator (ERI) for this experiment was ERI = 0.645 . ERI* = 0.645 . The losses include Sv being completely lost, half of Wb (one of the two AIPS IFs), one quarter of both Zc & Bd (RCP channels in the "swapped"-patching mode), and Zc and Nt being lost for a half hour each.

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

plots of the uncalibrated amplitude and phase against time
Comments.
Full-experiment for Ef-* baselines, no calibration applied. A 2.5 minute plot-averaging was used.

Plots of the uncalibrated amplitude and phase against frequency channel
Comments.
Scalar averaged Ef-* 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.
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.
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, each IF/pol on a separate plot. Different delays bewteen the physical BBCs feeding each IF/pol ("normal"/"swapped"-patching modes) are evident. Individual Wb outliers in the first SOLINT of each newly-begun mode.

Fringe-fit rate solutions
Comments.
SN2 station rate solutions. Individual Wb outliers in the first SOLINT of each newly-begun mode.

Telescope bandpasses
Comments.
Bandpass table 1. 0234+285, 0528+134, DG2034+285, and DG0528+134 were used for bandpass calibration.

Calibrated amplitude and phase against time (a priori amplitude calibration and fringe-fit solutions applied).
Comments.
Full-experiment for Ef-* baselines, calibrated with CL3. The 2.5-min plot-averaging still applied.

Calibrated amplitude and phase against frequency channel
Comments.
Ef-* baselines calibrated with CL3 and BP1. The amp and phase plots self-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:
DGNGC1275: pdf (not available) , or FITS (not available) .
NGC1275: pdf (not available) , or FITS (not available) .
0234+285: pdf (not available) , or FITS (not available) .
DG0528+134: pdf (not available) , or FITS (not available) .
DG0234+285: pdf (not available) , or FITS (not available) .
0528+134: pdf (not available) , or FITS (not available) .
Comments.
Naturally-weighted dirty maps of the phase-referenced-to sources.

Uniformly weighted dirty map (not useful for bright sources) produced before self-cal of:
DGNGC1275: pdf (not available) , or FITS (not available) .
NGC1275: pdf (not available) , or FITS (not available) .
0234+285: pdf (not available) , or FITS (not available) .
DG0528+134: pdf (not available) , or FITS (not available) .
DG0234+285: pdf (not available) , or FITS (not available) .
0528+134: pdf (not available) , or FITS (not available) .
Comments.
Uniformly-weighted dirty maps of the phase-referenced-to sources.

Phase corrections applied to a priori calibrated and fringe-fitted data by self-calibration.
DGNGC1275 .
NGC1275 .
0234+285 .
DG0528+134 .
DG0234+285 .
0528+134 .
Comments.
Plots of post-SPLIT tables SN1 for the sources that have been individually fringed.

Amplitude corrections applied to a priori calibrated and fringe-fitted data by self-calibration.
DGNGC1275: pdf , or text file , or statistical summary .
NGC1275: pdf , or text file , or statistical summary .
0234+285: pdf , or text file , or statistical summary .
DG0528+134: pdf , or text file , or statistical summary .
DG0234+285: pdf , or text file , or statistical summary .
0528+134: 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:
DGNGC1275 .
NGC1275 .
0234+285 .
DG0528+134 .
DG0234+285 .
0528+134 .
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:
DGNGC1275 .
NGC1275 .
0234+285 .
DG0528+134 .
DG0234+285 .
0528+134 .
Comments.
For each (fringed) source, plots of amp/phase on Ef-* baselines, calibrated with (post-SPLIT) table CL3, with a model-line overplotted.

Calibrated visibilities against u,v distance for:
DGNGC1275: pdf , or png .
NGC1275: pdf , or png .
0234+285: pdf , or png .
DG0528+134: pdf , or png .
DG0234+285: pdf , or png .
0528+134: pdf , or png .
Comments.
For each source, a plot of amp vs. |uv| distance.

u,v coverage for:
DGNGC1275: pdf , or png .
NGC1275: pdf , or png .
0234+285: pdf , or png .
DG0528+134: pdf , or png .
DG0234+285: pdf , or png .
0528+134: pdf , or png .
Comments.
For each source, a plot of the u-v coverage.

Crude maps of sources:
DGNGC1275: pdf , or FITS .
NGC1275: pdf , or FITS .
0234+285: pdf , or FITS .
DG0528+134: pdf , or FITS .
DG0234+285: pdf , or FITS .
0528+134: pdf , or FITS .
Comments.
For each source, a CLEAN map resulting from the automated fringing and self-cal iterations (or phase-referencing) in the pipeline script.