EVN User Experiment Pipeline Feedback


Pipeline feedback for experiment ES057A. 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 Oct 18 14:49:57 CEST 2007 bignall@jive.nl

General Comments. ( Brief data summary and scan listing )
18cm spectral line experiment, observed on 5 Jun 2007. Data rate was 32 Mbps (2 X 0.5 MHz subbands sampled at 4 Ms/sec, dual polarization, two-bit sampling). Only one of the two identical subbands was used for correlation. In the pipeline, the target source 'OH17.7-2.0' was calibrated using the phase-reference source 'J1733-1304'. '3C286' and 'J2253+1608' were also observed as calibrators. '3C345' was the fringe finder.
8 stations participated. There are no fringes to Tr in RCP (BBC#2) (but in the other recorded subband, Jb was also missing a polarization).

The EVN reliability indicator (ERI) for this experiment was ERI = 0.86 . ERI* = 0.86 . (CM=1, JB=0.75, EF=0.97, MC=1, ON=1, TR=0.75, HH=1, WB=1)

Plots of the autocorrelations
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plots of the uncalibrated amplitude and phase against time
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All sources are clearly detected

Plots of the uncalibrated amplitude and phase against frequency channel
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The uncalibrated amplitude and phase of the crosshand correlations against frequency channel (not available)
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TSYS against time
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Wb has some bad (very high) values towards the end of the experiment, maybe due to the severe RFI

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).
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Fringe-fit phase solutions (including Parallactic Angle correction).
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Fringe-fit delay solutions
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Fringe-fit rate solutions
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Telescope bandpasses
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Calibrated amplitude and phase against time (a priori amplitude calibration and fringe-fit solutions applied).
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Calibrated amplitude and phase against frequency channel
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Some baselines show a residual amplitude slope across the band. This should be calibratable. It may be a feature of correlating oversampled data.

Naturally weighted dirty map (not useful for bright sources) produced before self-cal of:
3C345: pdf (not available) , or FITS (not available) .
J2253+1608: pdf (not available) , or FITS (not available) .
J1733-1304: pdf (not available) , or FITS (not available) .
OH17.7-2.0: pdf , or FITS .
3C286: pdf (not available) , or FITS (not available) .
Comments.

Uniformly weighted dirty map (not useful for bright sources) produced before self-cal of:
3C345: pdf (not available) , or FITS (not available) .
J2253+1608: pdf (not available) , or FITS (not available) .
J1733-1304: pdf (not available) , or FITS (not available) .
OH17.7-2.0: pdf , or FITS .
3C286: pdf (not available) , or FITS (not available) .
Comments.

Phase corrections applied to a priori calibrated and fringe-fitted data by self-calibration.
3C345 .
J2253+1608 .
J1733-1304 .
OH17.7-2.0 (not available) .
3C286 .
Comments.

Amplitude corrections applied to a priori calibrated and fringe-fitted data by self-calibration.
3C345: pdf , or text file , or statistical summary .
J2253+1608: pdf , or text file , or statistical summary .
J1733-1304: pdf , or text file , or statistical summary .
OH17.7-2.0: pdf (not available) , or text file (not available) , or statistical summary (not available) .
3C286: pdf , or text file , or statistical summary .
Comments.

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.

Residual closure phase (visibility closure phase with model closure phase subtracted) for:
3C345 .
J2253+1608 .
J1733-1304 .
OH17.7-2.0 (not available) .
3C286 .
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Calibrated visibilities and the source model of:
3C345 .
J2253+1608 .
J1733-1304 .
OH17.7-2.0 (not available) .
3C286 .
Comments.

Calibrated visibilities against u,v distance for:
3C345: pdf , or png .
J2253+1608: pdf , or png .
J1733-1304: pdf , or png .
OH17.7-2.0: pdf , or png .
3C286: pdf , or png .
Comments.

u,v coverage for:
3C345: pdf , or png .
J2253+1608: pdf , or png .
J1733-1304: pdf , or png .
OH17.7-2.0: pdf , or png .
3C286: pdf , or png .
Comments.

Crude maps of sources:
3C345: pdf , or FITS .
J2253+1608: pdf , or FITS .
J1733-1304: pdf , or FITS .
OH17.7-2.0: pdf , or FITS .
3C286: pdf , or FITS .
Comments.