EVN User Experiment Pipeline Feedback


Pipeline feedback for experiment ER017_1. If you have any comments on this experiment please email the address below.
A detailed description of the pipeline output is available.

Last updated: Tue Aug 3 12:37:23 CEST 2004 bignall@jive.nl

General Comments. ( Brief data summary and scan listing )
This is an EVN phase-referencing, spectral line experiment at 1.3 cm (dual polarisation, single IF correlated with 1024 spectral channels). Participating stations were Cm, Ef, Jb (Mk2), On, Mc, Nt, Ur, Sh, Mh. Mc and Ur failed due to frequency setup problems and were not correlated. The reference antenna for pipeline calibration was Ef where available, otherwise Jb. Jb was chosen as the reference antenna for plotting. This experiment used 5 different frequency modes, which were pipelined separately.

The EVN reliability indicator (ERI) for this experiment was ERI=0.43 (Cm=0.98, Ef=0.5, Jb=0.98, On=0.98, Mc=0, Nt=0.98, Ur=0, Sh=0.95, Mh=0.7). ERI gives you an estimate of the ratio of observed/good visibilities to the expected number. ERI* is the same, but excludes data lost due to circumstances out of the EVN's control e.g. bad weather (ERI*=0.50, since Ef lost half of the experiment due to weather).

Plots for frequency mode 1:

Plots of the autocorrelations .
Comments.
Some RFI, extreme at Cm.

Plots of the uncalibrated amplitude and phase against time .
Comments.
Some data (~10 min) around 11 UT seems to be missing.

Plots of the uncalibrated amplitude and phase against frequency channel .
Comments.
Clear fringes seen only on 3C84. Some RFI in cross-correlations, especially to Cm.
On has LCP only.

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

TSYS against time .
Comments.
Cm: Tsys not available. Nominal SEFD used.

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.

Fringe-fit phase solutions (including Parallactic Angle correction).
Comments.
Generally solutions were found only on 3C84 for this mode.

Fringe-fit delay solutions .
Comments.

Fringe-fit rate solutions .
Comments.

Telescope bandpasses .
Comments.

Calibrated amplitude and phase against time (a priori amplitude calibration and fringe-fit solutions applied).
Comments.

Calibrated amplitude and phase against frequency channel .
Comments.

Naturally weighted dirty map produced before self-cal of:
3C84: postscript , or FITS .
0042+570: postscript , or FITS .
Comments.

Uniformly weighted dirty map produced before self-cal of:
3C84: postscript , or FITS .
0042+570: postscript , or FITS .
Comments.

Phase corrections applied to a priori calibrated and fringe-fitted data by self-calibration.
3C84.
0042+570.
Comments.

Amplitude corrections applied to a priori calibrated and fringe-fitted data by self-calibration.
3C84: postscript , or text file .
0042+570: postscript (not available) , or text file (not available) .
Comments.

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:
3C84 .
0042+570 (not available) .
Comments.

Calibrated visibilities and the source model of:
3C84 .
0042+570 (not available) .
Comments.

Calibrated visibilities against u,v distance for:
3C84. postscript , or png (smaller)
0042+570. postscript (not available) , or png (smaller) (not available)
Comments.

u,v coverage for:
3C84. postscript , or png (smaller)
0042+570. postscript (not available) , or png (smaller) (not available)
Comments.

3C84: postscript , or FITS .
0042+570:postscript (not available) , or FITS (not available) .
Comments.