EVN User Experiment Pipeline Feedback


Pipeline feedback for experiment N09L1. 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 Jul 22 18:14:56 CEST 2009 pidopryhora@jive.nl


General Comments. ( Brief data summary and scan listing )
N09L1 had 11 stations (including Knockin as an extra MERLIN station included in the EVN correlation), 4 x 8 MHz IFs, 4 polarizations, and used 16 frequency points per IF/pol, with 2s integrations. In the pipelining, the target source was treated as a phase-referenced source and not directly fringed. The SOLINT was set at 2 min. Ef was used as the reference station. The target source '0229+131' was calibrated using the phase-reference source '0235+164'. '3C84' and '3C454.3' were fringe-finders, 'J0019+2021' was also used as a calibrator.

The EVN reliability indicator (ERI) for this experiment was ERI = 0.965 . ERI* = 0.978 . Losses include Wb down for 15 min because of a formatter error, SH down for 20 min and also ends 40 min too early because the source is down. For Tr IF3 is down for 2 hours. Kn is not included in ERI calculation


Plots of the autocorrelations
Comments.
Each scan plotted separately, all stations.


plots of the uncalibrated amplitude and phase against time
Comments.
Full-experiment for Ef-* baselines, no calibration applied. A 2-minute plot-averaging was used.


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.


TSYS against time
Comments.
TY1 table, each IF/pol on a separate plot.


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.
FRING_PHAS 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. Wb differing delays in different IF/pols prior to the back-end reset visible. Only a few detections apparently in Mc, Nt, Ur.


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


Telescope bandpasses
Comments.
Bandpass table 1.


Calibrated amplitude and phase against time (a priori amplitude calibration and fringe-fit solutions applied).
Comments.
Full-experiment for Ef-* baselines, calibrated with CL3. The 2-min plot-averaging still applied.


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:
0235+164: pdf (not available) , or FITS (not available) .
3C84: pdf (not available) , or FITS (not available) .
J0019+2021: pdf (not available) , or FITS (not available) .
0229+131: pdf , or FITS .
3C454.3: pdf (not available) , or FITS (not available) .
Comments.


Uniformly weighted dirty map (not useful for bright sources) produced before self-cal of:
0235+164: pdf (not available) , or FITS (not available) .
3C84: pdf (not available) , or FITS (not available) .
J0019+2021: pdf (not available) , or FITS (not available) .
0229+131: pdf , or FITS .
3C454.3: pdf (not available) , or FITS (not available) .
Comments.


Phase corrections applied to a priori calibrated and fringe-fitted data by self-calibration.
0235+164 .
3C84 .
J0019+2021 .
0229+131 (not available) .
3C454.3 .
Comments.
Plots of post-SPLIT tables SN1 for the sources.


Amplitude corrections applied to a priori calibrated and fringe-fitted data by self-calibration.
0235+164: pdf , or text file , or statistical summary .
3C84: pdf , or text file , or statistical summary .
J0019+2021: pdf , or text file , or statistical summary .
0229+131: pdf (not available) , or text file (not available) , or statistical summary (not available) .
3C454.3: 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:
0235+164 .
3C84 .
J0019+2021 .
0229+131 (not available) .
3C454.3 .
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:
0235+164 .
3C84 .
J0019+2021 .
0229+131 (not available) .
3C454.3 .
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:
0235+164: pdf , or png .
3C84: pdf , or png .
J0019+2021: pdf , or png .
0229+131: pdf , or png .
3C454.3: pdf , or png .
Comments.
For each source, a plot of amp vs. |uv| distance.


u,v coverage for:
0235+164: pdf , or png .
3C84: pdf , or png .
J0019+2021: pdf , or png .
0229+131: pdf , or png .
3C454.3: pdf , or png .
Comments.
For each source, a plot of the u-v coverage.


Crude maps of sources:
0235+164: pdf , or FITS .
3C84: pdf , or FITS .
J0019+2021: pdf , or FITS .
0229+131: pdf , or FITS .
3C454.3: 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.