EVN User Experiment Pipeline Feedback


Pipeline feedback for experiment EG050B. 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 Oct 8 11:03:46 CEST 2010 zparagi@jive.nl

General Comments. ( Brief data summary and scan listing )
L-band e-EVN run on 29-30 September 2010. The scheduled data rate was 1024 Mbps. Participating telescopes were Ef, Cm, Jb2, Mc, On, Tr, and Wb. Mc was limited to 896 Mbps. Ef and Jb2 joined late (as planned in advance), at around 17 UT. The Ef subreflector was not in the good position after about 23 UT. Between ~18:50--19:50 UT all network connection to JIVE went down (except for Wb).

The EVN reliability indicator (ERI) for this experiment was ERI = 0.73 . ERI* = 0.73 . (Jb2=1, Cm=1, Mc=1, Ef=0.62, On=1, Tr=0.875, Wb=1)

Plots of the autocorrelations
Comments.
Iridium RFI affecting IFs 1-2.

plots of the uncalibrated amplitude and phase against time
Comments.
Tr: Connection to Mark5a occsionally lost
Wb: sources were outside HA limit after ~2 UT

Plots of the uncalibrated amplitude and phase against frequency channel
Comments.
Mc: first and last IFs attenuated because of known strong RFI.
Tr: no fringes in IFs L7-8 (BBC#8).

The uncalibrated amplitude and phase of the crosshand correlations against frequency channel
Comments.

TSYS against time
Comments.
Ef: poor Tsys data - used nominal sensitivity.
Wb: note IF2 amplitudes noisy, also Tsys. Replaced by IF1 Tsys values but it did not help all the problems with the amplitudes - most likely due to RFI.

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.

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.
Ef: after 23 UT fringes lost.

Calibrated amplitude and phase against frequency channel
Comments.

Naturally weighted dirty map (not useful for bright sources) produced before self-cal of:
J2002+4725: pdf (not available) , or FITS (not available) .
J2102+4702: pdf (not available) , or FITS (not available) .
V407CYG: pdf , or FITS .
Comments.

Uniformly weighted dirty map (not useful for bright sources) produced before self-cal of:
J2002+4725: pdf (not available) , or FITS (not available) .
J2102+4702: pdf (not available) , or FITS (not available) .
V407CYG: pdf , or FITS .
Comments.

Phase corrections applied to a priori calibrated and fringe-fitted data by self-calibration.
J2002+4725 .
J2102+4702 .
V407CYG (not available) .
Comments.

Amplitude corrections applied to a priori calibrated and fringe-fitted data by self-calibration.
J2002+4725: pdf , or text file , or statistical summary .
J2102+4702: pdf , or text file , or statistical summary .
V407CYG: pdf (not available) , or text file (not available) , or statistical summary (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.
On: sensitivity significantly lower than expected in the lower numbered IFs.
Tr,Wb: also somewhat lower sensitivity than expected.

Residual closure phase (visibility closure phase with model closure phase subtracted) for:
J2002+4725 .
J2102+4702 .
V407CYG (not available) .
Comments.

Calibrated visibilities and the source model of:
J2002+4725 .
J2102+4702 .
V407CYG (not available) .
Comments.

Calibrated visibilities against u,v distance for:
J2002+4725: pdf , or png .
J2102+4702: pdf , or png .
V407CYG: pdf , or png .
Comments.

u,v coverage for:
J2002+4725: pdf , or png .
J2102+4702: pdf , or png .
V407CYG: pdf , or png .
Comments.

Crude maps of sources:
J2002+4725: pdf , or FITS .
J2102+4702: pdf , or FITS .
V407CYG: pdf , or FITS .
Comments.