EVN User Experiment Pipeline Feedback
Last updated: Wed May 27 16:10:57 CEST 2009
zparagi@jive.nl
General Comments.
(
Brief data summary
and
scan listing
)
L-band e-EVN run on 19-20 May 2009. The data rate was 512 Mbps. Participating telescopes were Ef, Cm(+Kn), Jb1, Mc, On, Tr and Wb. Cambridge and Knockin was limited to 128 Mbps (Merlin microwave link). The target was phase-referenced to J0945+3534. Because of the slewing limitations, the Lovell Telescope skipped every other phase-reference scans. RFI caused some problems for most stations, especially in IFs7/8. Wb IF1 had very variable sampler statistics, but the data look ok. The lightpath went down for Medicina during the night.
The EVN reliability indicator (ERI) for this experiment was
ERI = 0.82 . ERI* = 0.82 .
(Ef=0.95, Cm=0.95 (+Kn=0.95), Jb1=0.95, Mc=0.65, On=0.95, Tr=0.95, Wb=0.95 )
Plots of the autocorrelations
Comments.
Cm and especiall Kn IF2 autocorrelations are not perfect.
Lots of RFI for Mc, but intermittent RFI is seen at other stations as well.
Jb1 strong RFI in IF8.
plots of the uncalibrated amplitude and phase
against time
Comments.
Mc lost about 3 hours before the end.
Plots of the uncalibrated amplitude and phase
against frequency channel
Comments.
Jb1 IF7-8 affected by RFI.
Tr L5-6 low amplitudes because of RFI?
The uncalibrated amplitude and phase of the crosshand
correlations against frequency channel
Comments.
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.
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:
4C39.25: pdf (not available)
, or
FITS (not available)
.
DA193: pdf (not available)
, or
FITS (not available)
.
J0945+3534: pdf (not available)
, or
FITS (not available)
.
IC2497:
pdf
, or
FITS
.
Comments.
Uniformly weighted dirty map (not useful for bright sources)
produced before self-cal of:
4C39.25: pdf (not available)
, or
FITS (not available)
.
DA193: pdf (not available)
, or
FITS (not available)
.
J0945+3534: pdf (not available)
, or
FITS (not available)
.
IC2497:
pdf
, or
FITS
.
Comments.
Phase corrections applied to a priori calibrated and
fringe-fitted data by self-calibration.
4C39.25
.
DA193
.
J0945+3534
.
IC2497 (not available)
.
Comments.
Amplitude corrections applied to a priori calibrated and
fringe-fitted data by self-calibration.
4C39.25:
pdf
, or
text file
, or
statistical summary
.
DA193:
pdf
, or
text file
, or
statistical summary
.
J0945+3534:
pdf
, or
text file
, or
statistical summary
.
IC2497: 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.
Residual closure phase (visibility closure phase with model closure phase subtracted) for:
4C39.25
.
DA193
.
J0945+3534
.
IC2497 (not available)
.
Comments.
Calibrated visibilities and the source model of:
4C39.25
.
DA193
.
J0945+3534
.
IC2497 (not available)
.
Comments.
Calibrated visibilities against u,v distance for:
4C39.25:
pdf
, or
png
.
DA193:
pdf
, or
png
.
J0945+3534:
pdf
, or
png
.
IC2497:
pdf
, or
png
.
Comments.
u,v coverage for:
4C39.25:
pdf
, or
png
.
DA193:
pdf
, or
png
.
J0945+3534:
pdf
, or
png
.
IC2497:
pdf
, or
png
.
Comments.
Crude maps of sources:
4C39.25:
pdf
, or
FITS
.
DA193:
pdf
, or
FITS
.
J0945+3534:
pdf
, or
FITS
.
IC2497:
pdf
, or
FITS
.
Comments.