EVN User Experiment Pipeline Feedback


Pipeline feedback for experiment EP061B. 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 23 14:23:14 CEST 2008 polatidis@jive.nl

General Comments. ( Brief data summary and scan listing )
L band phase-referencing experiment, observed on 29 Feb 2008. Data rate was 1 Gbps (8 X 16 MHz subbands, dual polarization, two-bit sampling). The target sources 'IRAS0725' was calibrated using the phase-reference source 'J0730-0241'. '4C39.25' was also observed as calibrator. '3C286' and '3C273' were fringe finders.
9 stations participated. Jb was stowed due to high winds, all data to Nt were lost due to the subreflector placed at the wrong position and Cm apparently recorded too fast for most of the time. Some Cm data were recoverable.

The EVN reliability indicator (ERI) for this experiment was ERI = 0.75 . ERI* = 0.85 . (JB=0, Ef=1 Wb=0.96, Cm=0.5, ON=1, Nt=0, Mc=1, Tr=1, Hh=1, Ur=1)

Plots of the autocorrelations
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plots of the uncalibrated amplitude and phase against time
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Plots of the uncalibrated amplitude and phase against frequency channel
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Cm: good data are on upper half of IF3 and lower half of IF4. All IFs/channels outside this range will need to be flagged.

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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Cm: Tsys not recorded - nominal SEFD assumed

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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Time variable RFI still found, mainly affecting Mc, Hh (IF1 LCP), and less frequently Tr, Ur.

Naturally weighted dirty map (not useful for bright sources) produced before self-cal of:
4C39.25: pdf (not available) , or FITS (not available) .
3C286: pdf (not available) , or FITS (not available) .
3C273: pdf (not available) , or FITS (not available) .
J0730-0241: pdf (not available) , or FITS (not available) .
Comments.

Uniformly weighted dirty map (not useful for bright sources) produced before self-cal of:
4C39.25: pdf (not available) , or FITS (not available) .
3C286: pdf (not available) , or FITS (not available) .
3C273: pdf (not available) , or FITS (not available) .
J0730-0241: pdf (not available) , or FITS (not available) .
Comments.

Phase corrections applied to a priori calibrated and fringe-fitted data by self-calibration.
4C39.25 .
3C286 .
3C273 .
J0730-0241 .
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Amplitude corrections applied to a priori calibrated and fringe-fitted data by self-calibration.
4C39.25: pdf , or text file , or statistical summary .
3C286: pdf (not available) , or text file (not available) , or statistical summary (not available) .
3C273: pdf (not available) , or text file (not available) , or statistical summary (not available) .
J0730-0241: 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).
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Residual closure phase (visibility closure phase with model closure phase subtracted) for:
4C39.25 .
3C286 (not available) .
3C273 (not available) .
J0730-0241 .
Comments.

Calibrated visibilities and the source model of:
4C39.25 .
3C286 (not available) .
3C273 (not available) .
J0730-0241 .
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Calibrated visibilities against u,v distance for:
4C39.25: pdf , or png .
3C286: pdf (not available) , or png (not available) .
3C273: pdf (not available) , or png (not available) .
J0730-0241: pdf , or png .
Comments.

u,v coverage for:
4C39.25: pdf , or png .
3C286: pdf (not available) , or png (not available) .
3C273: pdf (not available) , or png (not available) .
J0730-0241: pdf , or png .
Comments.

Crude maps of sources:
4C39.25: pdf , or FITS .
3C286: pdf (not available) , or FITS (not available) .
3C273: pdf (not available) , or FITS (not available) .
J0730-0241: pdf , or FITS .
Comments.
Image quality will improve with detailed editing for RFI.