EVN User Experiment Pipeline Feedback


Pipeline feedback for experiment ES054A. If you have any comments on this experiment please email the address below.
A detailed description of the pipeline output is available.

Last updated: Fri Dec 2 13:16:40 CET 2005 zparagi@jive.nl

General Comments. ( Brief data summary and scan listing )
512 Mbps L-band phase-referencing experiment observed on 5 June 2005 (session 2/2005). There were 8*8 MHz channels in both RCP and LCP. Fringe-finder was DA193, the phase-reference source was J0655+4100, and 3C286 was scheduled for MERLIN amplitude calibration.

Noto could not participate in the session because of an antenna problem. Torun used Rubidium frequency standard instead of the H-maser. This may not be appropriate for this phase-referencing project.

The EVN reliability indicator (ERI) for this experiment was ERI = 0.66 . ERI* = 0.66 . (Jb1=0.92, Wb=0.92, Ef=0.88, On=1.0, Mc=1.00, Tr=0.88, Cm=0.98, Nt=0.0)

Plots of the autocorrelations .
Comments.
Jb: Permanent known RFI in the lowest RCP channel. Most of the time strong RFI seen in IFs 6 and 8, both polarizations.
Ef: R5 and R7 were missing due to a formatter problem. See the station feedback.
Tr: R3-4 dead (BBC#3 was unlocked during the experiment). See the station feedback.
Mc: strong RFI appears ~11 UT in IF7 and remains till the end of observations.
Ro: RFI in IFs L5-6 and R5-6, also noted by the station.

Plots of the uncalibrated amplitude and phase against time .
Comments.
Jb: Stopped recording at around 14:30 for half an hour. Bad playback near the end.
Wb: Stopped recording after bank switching, for about an hour. See the station feedback.

Plots of the uncalibrated amplitude and phase against frequency channel .
Comments.
Cm signal was in L4-5 and R4-5. For other stations, see notes on bad channels above. Some RFI leaking through.

TSYS against time .
Comments.

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: most of the channels were less sensitive than expected. See the EVN Status Table.
Note that Shanghai still used uncooled L-band receiver in session 2/2005.

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.
The phase-reference source was well detected on the long baselines.

Calibrated amplitude and phase against frequency channel .
Comments.

Naturally weighted dirty map produced before self-cal of:
J0655+4100: postscript , or FITS .
DA193: postscript , or FITS .
3C286: postscript , or FITS .
Comments.

Uniformly weighted dirty map produced before self-cal of:
J0655+4100: postscript , or FITS .
DA193: postscript , or FITS .
3C286: postscript , or FITS .
Comments.

Phase corrections applied to a priori calibrated and fringe-fitted data by self-calibration.
J0655+4100.
DA193.
3C286.
Comments.

Amplitude corrections applied to a priori calibrated and fringe-fitted data by self-calibration.
J0655+4100: postscript , or text file .
DA193: postscript , or text file .
3C286: 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.
Tr: After self-calibration the gains were closer to the nominal value, but still the station appeared to be somewhat less sensitive than expected. See the EVN Status Table).

Residual closure phase (visibility closure phase with model closure phase subtracted) for:
J0655+4100 .
DA193 (not available) .
3C286 (not available) .
Comments.

Calibrated visibilities and the source model of:
J0655+4100 .
DA193 (not available) .
3C286 (not available) .
Comments.

Calibrated visibilities against u,v distance for:
J0655+4100. postscript , or png (smaller)
DA193. postscript (not available) , or png (smaller) (not available)
3C286. postscript (not available) , or png (smaller) (not available)
Comments.

u,v coverage for:
J0655+4100. postscript , or png (smaller)
DA193. postscript (not available) , or png (smaller) (not available)
3C286. postscript (not available) , or png (smaller) (not available)
Comments.

Crude maps of sources:
J0655+4100: postscript , or FITS .
DA193:postscript (not available) , or FITS (not available) .
3C286:postscript (not available) , or FITS (not available) .
Comments.
Insufficient data to map DA193 and 3C286. Very good pipeline map for the phase-reference source.