EVN User Experiment Pipeline Feedback


Pipeline feedback for experiment N13X4. 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 Dec 9 15:25:57 CET 2013 surcis@jive.nl

General Comments. ( Brief data summary and scan listing )
The X-band NME experiment N13X4 was conducted on 04 November 2013. 12 stations participated in the experiment (+ Mc with DBBC listed during the ftp-fringe test as MD), 8 x 8 MHz IFs, 4 polarizations, and used 512 frequency points per IF/pol, with 2s integrations. The SOLINT was set at 1.0 min. Ef was used as the reference station. The fringe-finder and bandpass calibrators were 'J1751+0939' and 'J1850+2825'. The target source 'J1931+2243' was calibrated using the phase-reference source 'J1925+2106'.

The EVN reliability indicator (ERI) for this experiment was ERI = 0.83 . ERI* = 0.83 . (EF=1, WB=1, MC=1, NT=0, ON=1, YS=1, SV=1, BD=1, ZC=1, UR=1, SH=1, HH=1)

Plots of the autocorrelations
Comments.
Each scan plotted separately, all stations. Zc: RFI IF4 (LL)

plots of the uncalibrated amplitude and phase against time
Comments.
Full-experiment for Ef-* baselines (also Wb-*), no calibration applied. Sh has fringes only in IF1 (RR).

Plots of the uncalibrated amplitude and phase against frequency channel
Comments.
Scalar averaged Ef-* baselines (also Wb-*), each scan plotted separately. No calibration applied yet. Sh: only IF1 with real signal.

The uncalibrated amplitude and phase of the crosshand correlations against frequency channel
Comments.
Scalar averaged Ef-* baselines (also Wb-*) for LR, each scan plotted separately. No calibration applied yet. Sh: only IF1 with real signal.

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.
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. J1751+0939 and J1850+2825 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 (also Wb-*), calibrated with CL3.

Calibrated amplitude and phase against frequency channel
Comments.
Ef-* baselines (also Wb-*) 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:
J1850+2825: pdf (not available) , or FITS (not available) .
J1931+2243: pdf , or FITS .
J1751+0939: pdf (not available) , or FITS (not available) .
J1925+2106: pdf (not available) , or FITS (not available) .
Comments.
Naturally weighted dirty map of the targets.

Uniformly weighted dirty map (not useful for bright sources) produced before self-cal of:
J1850+2825: pdf (not available) , or FITS (not available) .
J1931+2243: pdf , or FITS .
J1751+0939: pdf (not available) , or FITS (not available) .
J1925+2106: 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.
J1850+2825 .
J1931+2243 (not available) .
J1751+0939 .
J1925+2106 .
Comments.
Plots of post-SPLIT tables SN1 for the sources that have been individually fringed.

Amplitude corrections applied to a priori calibrated and fringe-fitted data by self-calibration.
J1850+2825: pdf , or text file , or statistical summary .
J1931+2243: pdf (not available) , or text file (not available) , or statistical summary (not available) .
J1751+0939: pdf , or text file , or statistical summary .
J1925+2106: 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:
J1850+2825 .
J1931+2243 (not available) .
J1751+0939 .
J1925+2106 .
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:
J1850+2825 .
J1931+2243 (not available) .
J1751+0939 .
J1925+2106 .
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:
J1850+2825: pdf , or png .
J1931+2243: pdf , or png .
J1751+0939: pdf , or png .
J1925+2106: pdf , or png .
Comments.
For each source, a plot of amp vs. |uv| distance.

u,v coverage for:
J1850+2825: pdf , or png .
J1931+2243: pdf , or png .
J1751+0939: pdf , or png .
J1925+2106: pdf , or png .
Comments.
For each source, a plot of the u-v coverage.

Crude maps of sources:
J1850+2825: pdf , or FITS .
J1931+2243: pdf , or FITS .
J1751+0939: pdf , or FITS .
J1925+2106: pdf , or FITS .
Comments.
For each source, a CLEAN map resulting from the automated fringing and self-cal iterations in the pipeline script.