EVN User Experiment Pipeline Feedback


Pipeline feedback for experiment EP068A_5. 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 Nov 18 18:17:02 CET 2010 muehle@jive.nl

General Comments. ( Brief data summary and scan listing )
Pass 5: phase center on Arp299D

C-band (6 cm) continuum EVN experiment, observed on 28 May 2010. The data rate was 1024 Mbps (8 x 16 MHz subbands, dual polarization, two-bit sampling). The target source 'Arp299D' was calibrated using the phase-reference source 'J1128-5925'. The calibrator source '4C39.25' was the fringe finder. In this pipeline reduction, Ef, Wb and Mc served as reference antennas and Ef as plot reference, i.e. except for the autocorrelations, the plots show baselines to Ef.
10 EVN stations were scheduled in this experiment: Cm, Ef, Jb, Mc, On, Sh, Tr, Ur, Wb and Ys. The data transmitted by microwave link from Cm are in subbands 2+3 (IF3+4). Ef missed scan #4 due to a long slewing time. Mc reported severe RFI. On reported a tracking problem around 12:52 UT and possibly other problems around 13:10 UT and 15:10 UT. Tr could not record for about an hour after the start of the experiment due to data throttling, so scans #1-21 were lost. Scans #126-129 are missing, too. Ur reported formatter problems, so that part of the data may be bad. A first analysis suggests that scans #24-26, #30-37, #42-48 and #125-129 may be affected. At Ys, two cracks in the main reflector structure were discovered, so that the antenna could not be moved. Wb used 12 antennas in phased-array mode. More details about the observations and the data can be found in the letter to the P.I. which is also available from the archive (section "Standardplots").

The EVN reliability indicator (ERI) for this experiment was ERI = 0.74 . ERI* = 0.74 . (Cm=1, Ef=1, Jb=1, Mc=1, On=1, Sh=1, Tr=0.79, Ur=0.86, Wb=1, Ys=0)

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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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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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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Naturally weighted dirty map (not useful for bright sources) produced before self-cal of:
J1128+5925: pdf (not available) , or FITS (not available) .
ARP299D: pdf , or FITS .
4C39.25: pdf (not available) , or FITS (not available) .
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Uniformly weighted dirty map (not useful for bright sources) produced before self-cal of:
J1128+5925: pdf (not available) , or FITS (not available) .
ARP299D: pdf , or FITS .
4C39.25: pdf (not available) , or FITS (not available) .
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Phase corrections applied to a priori calibrated and fringe-fitted data by self-calibration.
J1128+5925 .
ARP299D (not available) .
4C39.25 .
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Amplitude corrections applied to a priori calibrated and fringe-fitted data by self-calibration.
J1128+5925: pdf , or text file , or statistical summary .
ARP299D: pdf (not available) , or text file (not available) , or statistical summary (not available) .
4C39.25: pdf , or text file , or statistical summary .
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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:
J1128+5925 .
ARP299D (not available) .
4C39.25 .
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Calibrated visibilities and the source model of:
J1128+5925 .
ARP299D (not available) .
4C39.25 .
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Calibrated visibilities against u,v distance for:
J1128+5925: pdf , or png .
ARP299D: pdf , or png .
4C39.25: pdf , or png .
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u,v coverage for:
J1128+5925: pdf , or png .
ARP299D: pdf , or png .
4C39.25: pdf , or png .
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Crude maps of sources:
J1128+5925: pdf , or FITS .
ARP299D: pdf , or FITS .
4C39.25: pdf , or FITS .
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