EVN User Experiment Pipeline Feedback


Pipeline feedback for experiment EB027B. If you have any comments on this experiment please email the address below.
A detailed description of the pipeline output is available.

Last updated: Thu Jul 1 15:32:05 CEST 2004 bignall@jive.nl

General Comments. ( Brief data summary and scan listing )
This is an EVN experiment at 18cm, recorded at 512 Mbps on 19 February 2004. There are 2 polarisations and 8 subbands, with 16 channels per subband. The data were correlated in two passes, 4 subbands at a time, and subsequently combined in the pipeline using AIPS task VBGLU. Participating stations were Ef, Wb, Jb, On, Mc, Tr, Nt, Ro. Ro observes LCP only. Ef lost approximately half of the experiment due to problems with a diskpack and the Mk5 system.

The EVN reliability indicator (ERI) for this experiment was ERI=ERI*=0.81 (Ef=0.5, Wb=1, Jb=0.9, On=0.98, Mc=0.98, Tr=0.95, Nt=0.95, Ro=1).

Plots of the autocorrelations .
Comments.
RFI evident in various channels (not constant), especially at Jb, Ro, Mc.

Plots of the uncalibrated amplitude and phase against time .
Comments.
Tr, Nt: signal in IFs 5-8 much weaker than IFs 1-4.
Jb: missing fringes in IFs 5-8 for scans 1-6 and 13-40. Reason unknown.

Plots of the uncalibrated amplitude and phase against frequency channel .
Comments.

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

TSYS against time .
Comments.
On: some apparently spurious Tsys values; editing is probably needed.
Ro: 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.
Tr: gain curve polynomial in ANTAB file was replaced with POLY=1, as supplied gain curve was wrong.

Fringe-fit phase solutions (including Parallactic Angle correction).
Comments.

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:
J1310+322: postscript , or FITS .
J1337+550: postscript , or FITS .
Comments.

Uniformly weighted dirty map produced before self-cal of:
J1310+322: postscript , or FITS .
J1337+550: postscript , or FITS .
Comments.

Phase corrections applied to a priori calibrated and fringe-fitted data by self-calibration.
J1310+322.
J1337+550.
Comments.

Amplitude corrections applied to a priori calibrated and fringe-fitted data by self-calibration.
J1310+322: postscript , or text file .
J1337+550: postscript , or text file .
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:
J1310+322 .
J1337+550 .
Comments.

Calibrated visibilities and the source model of:
J1310+322 .
J1337+550 .
Comments.

Calibrated visibilities against u,v distance for:
J1310+322. postscript , or png (smaller)
J1337+550. postscript , or png (smaller)
Comments.

u,v coverage for:
J1310+322. postscript , or png (smaller)
J1337+550. postscript , or png (smaller)
Comments.

J1310+322: postscript , or FITS .
J1337+550: postscript , or FITS .
Comments.