EVN User Experiment Pipeline Feedback


Pipeline feedback for experiment ED026. If you have any comments on this experiment please email the address below.
A detailed description of the pipeline output is available.

Last updated: Fri May 19 13:55:33 CEST 2006 bignall@jive.nl

General Comments. ( Brief data summary and scan listing )
ED026 is an X band phase-referencing experiment, observed on 18 Feb 2006. Data rate was 1 Gbps (8 X 16 MHz subbands, dual polarization, two-bit sampling). The target source '2MASS0036' was calibrated using the phase-reference source 'J0028+2000'. '0235+164' was also observed as a calibrator. '3C454.3' was the fringe finder.
7 stations participated. A cable interference problem affected the recording at Hart, such that no data were recoverable (apart from a tiny bit near the beginning of the experiment). Westerbork observed with a wrong version of the schedule, so data after the first 5 hours were lost. Noto has no fringes from ~17:45 UT onwards, whereas fringes were clearly seen before this time on the phase reference source J0028+2000 between Noto and the bigger telescopes. The log file reported the antenna being off source from UT 17:44:17 although it was unclear whether there was really a problem with the antenna. Medicina has reduced S/N between UT 11:07 and 13:49 due to a disk problem, but the data are otherwise OK.

The EVN reliability indicator (ERI) for this experiment was ERI = 0.51 . ERI* = 0.51 . (EF=1, WB=0.37, MC=1, NT=0.78, HH=0, RO=1, AR=1)

Plots of the autocorrelations
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Wb has no data in the highest frequency band (known limitation).
Nt has RCP only at X-band.

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
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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:
J0028+2000: pdf (not available) , or FITS (not available) .
3C454.3: pdf (not available) , or FITS (not available) .
0235+164: pdf (not available) , or FITS (not available) .
2MASS0036: pdf , or FITS .
Comments.

Uniformly weighted dirty map (not useful for bright sources) produced before self-cal of:
J0028+2000: pdf (not available) , or FITS (not available) .
3C454.3: pdf (not available) , or FITS (not available) .
0235+164: pdf (not available) , or FITS (not available) .
2MASS0036: pdf , or FITS .
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Phase corrections applied to a priori calibrated and fringe-fitted data by self-calibration.
J0028+2000 .
3C454.3 .
0235+164 .
2MASS0036 (not available) .
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Amplitude corrections applied to a priori calibrated and fringe-fitted data by self-calibration.
J0028+2000: pdf , or text file , or statistical summary .
3C454.3: pdf , or text file , or statistical summary .
0235+164: pdf (not available) , or text file (not available) , or statistical summary (not available) .
2MASS0036: pdf (not available) , or text file (not available) , or statistical summary (not available) .
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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:
J0028+2000 .
3C454.3 .
0235+164 (not available) .
2MASS0036 (not available) .
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Calibrated visibilities and the source model of:
J0028+2000 .
3C454.3 .
0235+164 (not available) .
2MASS0036 (not available) .
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Calibrated visibilities against u,v distance for:
J0028+2000: pdf , or png .
3C454.3: pdf , or png .
0235+164: pdf (not available) , or png (not available) .
2MASS0036: pdf , or png .
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u,v coverage for:
J0028+2000: pdf , or png .
3C454.3: pdf , or png .
0235+164: pdf (not available) , or png (not available) .
2MASS0036: pdf , or png .
Comments.

Crude maps of sources:
J0028+2000: pdf , or FITS .
3C454.3: pdf , or FITS .
0235+164: pdf (not available) , or FITS (not available) .
2MASS0036: pdf , or FITS .
Comments.