EVN User Experiment Pipeline Feedback


Pipeline feedback for experiment ES072G. 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 Jul 14 10:11:22 CEST 2014 surcis@jive.nl

General Comments. ( Brief data summary and scan listing )
ES072G was a methanol maser experiment at 6.7-GHz on 03 March 2014. It used 8 EVN stations and a setup of 1 x 2 MHz IF, dual polarization, and 2 bit sampling. The post correlasion was one with 2048 frequency points by using the software correlator. In the pipelining, the SOLINT was set at 2.0 min and Ef was used as the reference station. J2202+4216 was both fringe-finder and bandpass calibrator. The target maser source was G25.71+0.04.

The EVN reliability indicator (ERI) for this experiment was ERI = (Ef=1, Jb=1, On=1, Mc=1, Nt=1, Tr=1, Wb=1, Ys=1,) 1.00 . ERI* = 0.70 (Ef=1, Jb=1, On=0.75, Mc=1, Nt=0, Tr=1, Wb=1, Ys=1,) .

Plots of the autocorrelations
Comments.
Each scan plotted separately, all stations. EF: RFI in IF1 (LL and RR); Ys: RFI in IF1 (RR).

plots of the uncalibrated amplitude and phase against time
Comments.
Full-experiment on Ef-* baselines, no calibration applied. A 1.5-minute plot-averaging was used. No fringes to NT.

Plots of the uncalibrated amplitude and phase against frequency channel
Comments.
Scalar averaged Ef-* baselines, each scan plotted separately. No calibration applied yet. Methanol maser lines detected in all baselines but **-Nt.

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. Methanol maser lines detected in all baselines but **-Nt.

TSYS against time
Comments.
TY1 table.

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. Nt has solutions only for J2136+0041.

Fringe-fit delay solutions
Comments.
SN2 station delay solutions for the fringed sources. Proper solutions found at all stations. Nt has solutions only for J2136+0041.

Fringe-fit rate solutions
Comments.
SN2 station rate solutions. Nt has solutions only for J2136+0041.

Telescope bandpasses
Comments.
Bandpass table 1. Bad solutions for Nt.

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. Methanol maser line was detected in all baselines but Nt because of the lack of fringe solutions.

Naturally weighted dirty map (not useful for bright sources) produced before self-cal of:
J2136+0041: pdf (not available) , or FITS (not available) .
G25.71+0.04: pdf (not available) , or FITS (not available) .
J1331+3030: pdf (not available) , or FITS (not available) .
J2202+4216: pdf (not available) , or FITS (not available) .
Comments.

Uniformly weighted dirty map (not useful for bright sources) produced before self-cal of:
J2136+0041: pdf (not available) , or FITS (not available) .
G25.71+0.04: pdf (not available) , or FITS (not available) .
J1331+3030: pdf (not available) , or FITS (not available) .
J2202+4216: pdf (not available) , or FITS (not available) .
Comments.

Phase corrections applied to a priori calibrated and fringe-fitted data by self-calibration.
J2136+0041 .
G25.71+0.04 .
J1331+3030 .
J2202+4216 .
Comments.
Plots of post-SPLIT tables SN1 for the sources.

Amplitude corrections applied to a priori calibrated and fringe-fitted data by self-calibration.
J2136+0041: pdf , or text file , or statistical summary .
G25.71+0.04: pdf , or text file , or statistical summary .
J1331+3030: pdf , or text file , or statistical summary .
J2202+4216: 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:
J2136+0041 .
G25.71+0.04 .
J1331+3030 .
J2202+4216 .
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:
J2136+0041 .
G25.71+0.04 .
J1331+3030 .
J2202+4216 .
Comments.
For the 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:
J2136+0041: pdf , or png .
G25.71+0.04: pdf , or png .
J1331+3030: pdf , or png .
J2202+4216: pdf , or png .
Comments.
For each source, a plot of amp vs. |uv| distance.

u,v coverage for:
J2136+0041: pdf , or png .
G25.71+0.04: pdf , or png .
J1331+3030: pdf , or png .
J2202+4216: pdf , or png .
Comments.
For each source, a plot of the u-v coverage.

Crude maps of sources:
J2136+0041: pdf , or FITS .
G25.71+0.04: pdf , or FITS .
J1331+3030: pdf , or FITS .
J2202+4216: pdf , or FITS .
Comments.
For each source, a CLEAN map resulting from the automated fringing and self-cal iterations in the pipeline script.