EVN User Experiment Pipeline Feedback
Last updated: Fri Mar 8 15:11:33 CET 2013
zparagi@jive.nl
General Comments.
(
Brief data summary
and
scan listing
)
ES068A, C-band e-VLBI run on 2013 February 22. Participating telescopes were Jodrell Bank (LT), Westerbork, Effelsberg, Onsala, Medicina, Noto, Torun, Yebes and Shanghai. Medicina and Shanghai observed at 512 Mbps (but used 1-bit sampling to recover the full bandwidth). Data transfer from Noto was limited to 896 Mbps. The target was phase referenced to J2134+4050; LT skipped every second p-ref scan because of slewing limitations.
The EVN reliability indicator (ERI) for this experiment was
ERI = 0.87 . ERI* = 0.87 .
(Ef=0.98, Jb1=0.97, Ys=1, On=0.92, Mc=1, Nt=0.97, Tr=1, Wb=1, Sh=0.60)
Plots of the autocorrelations
Comments.
plots of the uncalibrated amplitude and phase
against time
Comments.
Plots of the uncalibrated amplitude and phase
against frequency channel
Comments.
The uncalibrated amplitude and phase of the crosshand
correlations against frequency channel
Comments.
TSYS against time
Comments.
MC Tsys increased significantly during the run.
Note Jb1 ANTAB gain and Tsys values appear to be wrong - a long-standing problem.
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.
Calibrated amplitude and phase against frequency
channel
Comments.
Naturally weighted dirty map (not useful for bright sources)
produced before self-cal of:
BLLAC: pdf (not available)
, or
FITS (not available)
.
J2134+4050: pdf (not available)
, or
FITS (not available)
.
CYGX-2:
pdf
, or
FITS
.
Comments.
Uniformly weighted dirty map (not useful for bright sources)
produced before self-cal of:
BLLAC: pdf (not available)
, or
FITS (not available)
.
J2134+4050: pdf (not available)
, or
FITS (not available)
.
CYGX-2:
pdf
, or
FITS
.
Comments.
Phase corrections applied to a priori calibrated and
fringe-fitted data by self-calibration.
BLLAC
.
J2134+4050
.
CYGX-2 (not available)
.
Comments.
Amplitude corrections applied to a priori calibrated and
fringe-fitted data by self-calibration.
BLLAC:
pdf
, or
text file
, or
statistical summary
.
J2134+4050:
pdf
, or
text file
, or
statistical summary
.
CYGX-2: 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.
Jb1 sensitivity is very low, SEFD ~200 Jy at best. Partly due to weather?
Mc sensitivity is also quite low by the end of the run.
Residual closure phase (visibility closure phase with model closure phase subtracted) for:
BLLAC
.
J2134+4050
.
CYGX-2 (not available)
.
Comments.
Calibrated visibilities and the source model of:
BLLAC
.
J2134+4050
.
CYGX-2 (not available)
.
Comments.
Calibrated visibilities against u,v distance for:
BLLAC:
pdf
, or
png
.
J2134+4050:
pdf
, or
png
.
CYGX-2:
pdf
, or
png
.
Comments.
u,v coverage for:
BLLAC:
pdf
, or
png
.
J2134+4050:
pdf
, or
png
.
CYGX-2:
pdf
, or
png
.
Comments.
Crude maps of sources:
BLLAC:
pdf
, or
FITS
.
J2134+4050:
pdf
, or
FITS
.
CYGX-2:
pdf
, or
FITS
.
Comments.