EVN User Experiment Pipeline Feedback


Pipeline feedback for experiment EF022B. If you have any comments on this experiment please email the address below.
A detailed description of the pipeline output is available.

Last updated: Mon Oct 11 15:04:15 CEST 2010 mahmud@jive.nl

General Comments. ( Brief data summary and scan listing )
EF022B had 10 stations Ef, Mc, On, Tr, Jb, Wb. Ur, Sh, Zc, Bd (no Sv), 8 16 MHz IFs, four polarizations, and used 32 frequency points per IF/pol, with 2s integrations. In the pipelining, the target source (J1429) was treated as a phase-referenced source and not directly fringed. 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 & Wb were used as the reference stations.

The EVN reliability indicator (ERI) for this experiment was ERI = 0.85 . ERI* = 0.85 . The ERI was 0.85, with losses including outer IFS (1 and 8) for Mc, IF 7 and 8 (LL) for Tr, incorrect patching for some IFS for Zc, and no fringes for Bd between 1850-1920.

Plots of the autocorrelations
Comments.
Each scan plotted separately, all stations. Some RFI in Mc IF2 and On IF5. Zc IFs 3, 5 and 7 need flagging. Spikes with ringing in IFs 3 and 4 LL for Tr (RFI?)

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
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. Wb: noisy Tsys in IF 2&3, Mc: a few distant outliers, Tr: Noisy Tsys in IF 7.

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.

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

Telescope bandpasses
Comments.
Bandpass table 1. J0927+3902, J1331+3030 and J1407+2827 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:
J1407+2827: pdf (not available) , or FITS (not available) .
J1429: pdf , or FITS .
J0927+3902: pdf (not available) , or FITS (not available) .
J1429+5406: pdf (not available) , or FITS (not available) .
J1331+3030: pdf (not available) , or FITS (not available) .
Comments.
Naturually weighted dirty map of the targets.

Uniformly weighted dirty map (not useful for bright sources) produced before self-cal of:
J1407+2827: pdf (not available) , or FITS (not available) .
J1429: pdf , or FITS .
J0927+3902: pdf (not available) , or FITS (not available) .
J1429+5406: pdf (not available) , or FITS (not available) .
J1331+3030: pdf (not available) , or FITS (not available) .
Comments.
Uniformly weighted dirty map of the targets.

Phase corrections applied to a priori calibrated and fringe-fitted data by self-calibration.
J1407+2827 .
J1429 (not available) .
J0927+3902 .
J1429+5406 .
J1331+3030 .
Comments.
Plots of post-SPLIT tables SN1 for the sources.

Amplitude corrections applied to a priori calibrated and fringe-fitted data by self-calibration.
J1407+2827: pdf , or text file , or statistical summary .
J1429: pdf (not available) , or text file (not available) , or statistical summary (not available) .
J0927+3902: pdf , or text file , or statistical summary .
J1429+5406: pdf , or text file , or statistical summary .
J1331+3030: pdf , or text file , or statistical summary .
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:
J1407+2827 .
J1429 (not available) .
J0927+3902 .
J1429+5406 .
J1331+3030 .
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:
J1407+2827 .
J1429 (not available) .
J0927+3902 .
J1429+5406 .
J1331+3030 .
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:
J1407+2827: pdf , or png .
J1429: pdf , or png .
J0927+3902: pdf , or png .
J1429+5406: pdf , or png .
J1331+3030: pdf , or png .
Comments.
For each source, a plot of amp vs. |uv| distance.

u,v coverage for:
J1407+2827: pdf , or png .
J1429: pdf , or png .
J0927+3902: pdf , or png .
J1429+5406: pdf , or png .
J1331+3030: pdf , or png .
Comments.
For each source, a plot of the u-v coverage.

Crude maps of sources:
J1407+2827: pdf , or FITS .
J1429: pdf , or FITS .
J0927+3902: pdf , or FITS .
J1429+5406: pdf , or FITS .
J1331+3030: 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.