EVN User Experiment Pipeline Feedback


Pipeline feedback for experiment EB044A. 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 Apr 7 17:23:42 CEST 2010 mahmud@jive.nl

General Comments. ( Brief data summary and scan listing )
EB044A had 12 stations;Ef, Mc, On, Jb, Ur, Tr, Kn, Da, Wb, Nt, Ys and Sh, 8 8 MHz IFs, dual polarizations, and used 2s integrations. In the pipelining, the target sources were treated as phase-referenced sources and not directly fringed.The target sources 'J1342-0256' and 'J1603+3002' were calibrated using the phase-reference sources. J1354-0206 and J1606+3124 respectively. The SOLINT was set automatically at a representative length of a reference-source scan in a phase-reference cycle (90s judging from the schedule). Ef was used as the reference station.

The EVN reliability indicator (ERI) for this experiment was ERI = 0.86 . ERI* = 0.86 . Ef=1, Mc=1, On=1, Jb=1, Ur=1, Tr=1, Kn=0.5, Da=1, Wb=1, Nt=0.75, Ys=0.93 and Sh=1. Losses include Ys missing first 2 scans and no fringes in Nt IF4 and Kn IF3.

Plots of the autocorrelations
Comments.
Each scan plotted separately, all stations. Wb has a very 'wiggly-shaped' bandpass.

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 (not available)
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. Shanghai has very high Tsys ~0840-0900 (source at very low elevation).

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. Small jumps in Ur clock (~0.06 microseconds).

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

Telescope bandpasses
Comments.
Bandpass table 1. 3C273 and J1606+3124 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.

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:
J1606+3124: pdf (not available) , or FITS (not available) .
3C273: pdf (not available) , or FITS (not available) .
J1354-0206: pdf (not available) , or FITS (not available) .
J1603+3002: pdf , or FITS .
J1327+0313: pdf (not available) , or FITS (not available) .
J1342-0256: pdf , or FITS .
Comments.
Naturually weighted dirty map of the targets.

Uniformly weighted dirty map (not useful for bright sources) produced before self-cal of:
J1606+3124: pdf (not available) , or FITS (not available) .
3C273: pdf (not available) , or FITS (not available) .
J1354-0206: pdf (not available) , or FITS (not available) .
J1603+3002: pdf , or FITS .
J1327+0313: pdf (not available) , or FITS (not available) .
J1342-0256: pdf , or FITS .
Comments.
Uniformly weighted dirty map of the targets.

Phase corrections applied to a priori calibrated and fringe-fitted data by self-calibration.
J1606+3124 .
3C273 .
J1354-0206 .
J1603+3002 (not available) .
J1327+0313 .
J1342-0256 (not available) .
Comments.
Plots of post-SPLIT tables SN1 for the sources.

Amplitude corrections applied to a priori calibrated and fringe-fitted data by self-calibration.
J1606+3124: pdf , or text file , or statistical summary .
3C273: pdf , or text file , or statistical summary .
J1354-0206: pdf , or text file , or statistical summary .
J1603+3002: pdf (not available) , or text file (not available) , or statistical summary (not available) .
J1327+0313: pdf , or text file , or statistical summary .
J1342-0256: pdf (not available) , or text file (not available) , or statistical summary (not available) .
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:
J1606+3124 .
3C273 .
J1354-0206 .
J1603+3002 (not available) .
J1327+0313 .
J1342-0256 (not available) .
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:
J1606+3124 .
3C273 .
J1354-0206 .
J1603+3002 (not available) .
J1327+0313 .
J1342-0256 (not available) .
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:
J1606+3124: pdf , or png .
3C273: pdf , or png .
J1354-0206: pdf , or png .
J1603+3002: pdf , or png .
J1327+0313: pdf , or png .
J1342-0256: pdf , or png .
Comments.
For each source, a plot of amp vs. |uv| distance.

u,v coverage for:
J1606+3124: pdf , or png .
3C273: pdf , or png .
J1354-0206: pdf , or png .
J1603+3002: pdf , or png .
J1327+0313: pdf , or png .
J1342-0256: pdf , or png .
Comments.
For each source, a plot of the u-v coverage.

Crude maps of sources:
J1606+3124: pdf , or FITS .
3C273: pdf , or FITS .
J1354-0206: pdf , or FITS .
J1603+3002: pdf , or FITS .
J1327+0313: pdf , or FITS .
J1342-0256: 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.