EVN User Experiment Pipeline Feedback


Pipeline feedback for experiment EL040C. If you have any comments on this experiment please email the address below.
A detailed description of the pipeline output is available.

Last updated: Wed Jan 5 17:29:04 CET 2011 mahmud@jive.nl

General Comments. ( Brief data summary and scan listing )
EL040C had 9 stations: Tr Zc Ef Sv Mc Bd Wb Jb On, 8 16 MHz IFs, dual polarization, and used 2s integrations. Considerably more information is included in the experiment's cover letter on the standard-plots portion of the EVN Archive. In the pipelining, the target sources 1512, 1525 and 1528 were treated as phase-referenced sources and not directly fringed. The SOLINT was set automatically at a representative length of a reference-source scan in a phase-reference cycle (~90s judging from the schedule). Wb was used as the reference station.

The EVN reliability indicator (ERI) for this experiment was ERI = 0.81 . ERI* = 0.81 . The losses included no LL fringes in IFs 7&8 for Tr and Ef out for 6.5 hrs due to oil leakage (Tr=0.875, Ef=0.27, Zc=1,Sv=1, Bd=1, Wb=1, Jb=1, On=1, Mc=1).

Plots of the autocorrelations
Comments.
Each scan plotted separately, all stations. Strong RFI in Bd IF 1, Sv IF 1, Zc IF 4, Mc IF 1,2 & 8

plots of the uncalibrated amplitude and phase against time
Comments.
Full-experiment for Wb-* baselines, no calibration applied.

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

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

TSYS against time
Comments.
TY1 table, each IF/pol on a separate plot. Noisy Tsys Wb IF 2&3 and some very high Tsys measurements in IF 7. Noisy Tsys for On, very high Tsys in Mc IF 1 & 2 and Tr IF 2

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. 4C39.25 was used for bandpass calibration.

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

Calibrated amplitude and phase against frequency channel
Comments.
Wb-* baselines calibrated with CL3 and BP1. Tr RR IF 7&8 amplitudes very low, also for Bd and Sv IF 1.

Naturally weighted dirty map (not useful for bright sources) produced before self-cal of:
1512: pdf , or FITS .
1525: pdf , or FITS .
J1522+3144: pdf (not available) , or FITS (not available) .
1528: pdf , or FITS .
3C345: pdf (not available) , or FITS (not available) .
Comments.
Naturually weighted dirty map of the targets.

Uniformly weighted dirty map (not useful for bright sources) produced before self-cal of:
1512: pdf , or FITS .
1525: pdf , or FITS .
J1522+3144: pdf (not available) , or FITS (not available) .
1528: pdf , or FITS .
3C345: 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.
1512 (not available) .
1525 (not available) .
J1522+3144 .
1528 (not available) .
3C345 .
Comments.
Plots of post-SPLIT tables SN1 for the sources.

Amplitude corrections applied to a priori calibrated and fringe-fitted data by self-calibration.
1512: pdf (not available) , or text file (not available) , or statistical summary (not available) .
1525: pdf (not available) , or text file (not available) , or statistical summary (not available) .
J1522+3144: pdf , or text file , or statistical summary .
1528: pdf (not available) , or text file (not available) , or statistical summary (not available) .
3C345: 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:
1512 (not available) .
1525 (not available) .
J1522+3144 .
1528 (not available) .
3C345 .
Comments.
Separate files per (fringed) source, showing closure phase plots for all the triangles (not just Wb-*-*). Only stokes=I shown.

Calibrated visibilities and the source model of:
1512 (not available) .
1525 (not available) .
J1522+3144 .
1528 (not available) .
3C345 .
Comments.
For each (fringed) source, plots of amp/phase on Wb-* baselines, calibrated with (post-SPLIT) table CL3, with a model-line overplotted.

Calibrated visibilities against u,v distance for:
1512: pdf , or png .
1525: pdf , or png .
J1522+3144: pdf , or png .
1528: pdf , or png .
3C345: pdf , or png .
Comments.
For each source, a plot of amp vs. |uv| distance.

u,v coverage for:
1512: pdf , or png .
1525: pdf , or png .
J1522+3144: pdf , or png .
1528: pdf , or png .
3C345: pdf , or png .
Comments.
For each source, a plot of the u-v coverage.

Crude maps of sources:
1512: pdf , or FITS .
1525: pdf , or FITS .
J1522+3144: pdf , or FITS .
1528: pdf , or FITS .
3C345: 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.