EVN User Experiment Pipeline Feedback


Pipeline feedback for experiment N12SX1. 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 18 17:09:36 CEST 2012 surcis@jive.nl


General Comments. ( Brief data summary and scan listing )
The S/X band NME experiment N12SX1 was performed on 25 May 2012. The experiment used 11 stations with a recording data rate of 512 Mbps (16 x 8 MHz, 2bit sampling, RCP only). S and X band data were in IF 1-8 and IF 9-16 X respectively. Ys was used as the reference station in the pipelining data reduction.

The EVN reliability indicator (ERI) for this experiment was ERI = 0.6 . ERI* = 0.6 . (Ef=0.9, Wb=0, Mc=1, On=1, Hh=1, Ys=1, Nt=0, Ur=1, Sv=1, Zc=1, Bd=1).


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.


Plots of the uncalibrated amplitude and phase against frequency channel
Comments.
Scalar averaged Ef-* baselines, each scan plotted separately. No calibration applied yet. Same clock model was used at both S and X band. At S band, the delay is a bit of larger.


The uncalibrated amplitude and phase of the crosshand correlations against frequency channel (not available)
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.


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.


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:
3C454.3: pdf , or FITS .
J2249+1331: pdf , or FITS .
Comments.


Uniformly weighted dirty map (not useful for bright sources) produced before self-cal of:
3C454.3: pdf , or FITS .
J2249+1331: pdf , or FITS .
Comments.


Phase corrections applied to a priori calibrated and fringe-fitted data by self-calibration.
3C454.3 .
J2249+1331 .
Comments.
Plots of post-SPLIT tables SN1 for the sources.


Amplitude corrections applied to a priori calibrated and fringe-fitted data by self-calibration.
3C454.3: pdf , or text file , or statistical summary .
J2249+1331: 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.


Residual closure phase (visibility closure phase with model closure phase subtracted) for:
3C454.3 .
J2249+1331 .
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:
3C454.3 .
J2249+1331 .
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:
3C454.3: pdf , or png .
J2249+1331: pdf , or png .
Comments.
For each source, a plot of amp vs. |uv| distance at both S and X band.


u,v coverage for:
3C454.3: pdf , or png .
J2249+1331: pdf , or png .
Comments.
For each source, a plot of the u-v coverage. Note that Both S and X band u-v coverage were ploted in the same image.


Crude maps of sources:
3C454.3: pdf , or FITS .
J2249+1331: pdf , or FITS .
Comments.
Note that both S and X band data were used to make the crude image.