EVN User Experiment Pipeline Feedback


Pipeline feedback for experiment N13L2. If you have any comments on this experiment please email the address below.
A detailed description of the pipeline output is available.

Last updated: Thu Sep 26 10:08:42 CEST 2013 goddi@jive.nl

General Comments. ( Brief data summary and scan listing )
L band NME experiment, observed on 7 June 2013, with 12 antennas (+DBBC from Hh, Tr, and Nt, listed as Hd, Td, Nd, respectively). Data rate was 512 Mbps (8 X 8 MHz subbands, dual polarization, two-bit sampling), 64 frequency points per IF/pol, full polarization. The fringe-finders and bandpass calibrators were DA193 and 0528+134. Each source was calibrated independently: fringe-fitting and self-calibration were performed on each individual source - - standard-phase reference did not prove to work satisfactorily with (long) cycles of 6min (on target) + 2.5min (on calibrator). Ef was used as reference antenna.

The EVN reliability indicator (ERI) for this experiment was ERI = 0.89 . ERI* = 0.89 . (Ef=0.85*, Wb=1, Jb1=1, Od25=1, Mc=1, Nt=1, Tr=1, Zc=1, Bd=1, Ur=0.8*, Sh=0, Hh=1) Ef: start 6:11 (system group repairs 3.6cm), Ur: MK5 failure scans=1-4, Sh no fringes.

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.

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
Comments.
Scalar averaged Ef-* baselines for LR, each scan plotted separately. No calibration applied yet.

TSYS against time
Comments.
TY1 table, each IF/pol on a separate plot. Note that Tsys measurements were missing in some IFs for Tr.

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.

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

Telescope bandpasses
Comments.
Bandpass table 1. DA193 was 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.

Calibrated amplitude and phase against frequency channel
Comments.
Ef-* baselines calibrated with CL3 and BP1. The amp and phaseplots 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:
J0539+1433: pdf (not available) , or FITS (not available) .
DA193: pdf (not available) , or FITS (not available) .
J0552+3754: pdf (not available) , or FITS (not available) .
0528+134: pdf (not available) , or FITS (not available) .
Comments.
Naturally weighted dirty map of the targets.

Uniformly weighted dirty map (not useful for bright sources) produced before self-cal of:
J0539+1433: pdf (not available) , or FITS (not available) .
DA193: pdf (not available) , or FITS (not available) .
J0552+3754: pdf (not available) , or FITS (not available) .
0528+134: pdf (not available) , or FITS (not available) .
Comments.
Uniformly weighted dirty map of the targets.

Phase corrections applied to a priori calibrated and fringe-fitted data by self-calibration.
J0539+1433 .
DA193 .
J0552+3754 .
0528+134 .
Comments.
Plots of post-SPLIT tables SN1 for the sources.

Amplitude corrections applied to a priori calibrated and fringe-fitted data by self-calibration.
J0539+1433: pdf , or text file , or statistical summary .
DA193: pdf , or text file , or statistical summary .
J0552+3754: 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:
J0539+1433 .
DA193 .
J0552+3754 .
0528+134 .
Comments.
Separate files per (fringed) source, showing closure phase plots for all the triangles (not just Ef-*-*). Only stokes=I shown.

Calibrated visibilities and the source model of:
J0539+1433 .
DA193 .
J0552+3754 .
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:
J0539+1433: pdf , or png .
DA193: pdf , or png .
J0552+3754: pdf , or png .
0528+134: pdf , or png .
Comments.
For each source, a plot of amp vs. |uv| distance.

u,v coverage for:
J0539+1433: pdf , or png .
DA193: pdf , or png .
J0552+3754: pdf , or png .
0528+134: pdf , or png .
Comments.
For each source, a plot of the u-v coverage.

Crude maps of sources:
J0539+1433: pdf , or FITS .
DA193: pdf , or FITS .
J0552+3754: 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.