EVN User Experiment Pipeline Feedback
Last updated: Mon Aug 27 13:45:48 CEST 2007
harvey@jive.nl
General Comments.
(
Brief data summary
and
scan listing
)
L band phase-referencing experiment, observed on 7th March 2007. Data rate was 1 Gbps (8 X 16 MHz subbands, dual polarization, two-bit sampling). The target source 'NGC 5218' was calibrated using the phase-reference source '41337+637'. '3C345' and '4C39.25' were also observed as calibrators.
10 stations participated. Mc, On, Jb had significant recording problems.
The EVN reliability indicator (ERI) for this experiment was
ERI = 0.79 . ERI* = 0.79 .
(JB=0.91, CM=0.98, WB=0.55, EF=0.25, MC=0.95, NT=0.55, ON=0.78, SH=0.99, UR=0.97, TR=0.98)
Plots of the autocorrelations
Comments.
Cm missing signal in some IFs
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
(not available)
Comments.
TSYS against time
Comments.
O.K. Cm no data because they do not measure Tsys.
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.
OK
Calibrated amplitude and phase against time
(a
priori amplitude calibration and fringe-fit solutions applied).
Comments.
Calibration reasonable, but not great dur to presence of some RFI
Calibrated amplitude and phase against frequency
channel
Comments.
Naturally weighted dirty map (not useful for bright sources)
produced before self-cal of:
N5218:
pdf
, or
FITS
.
3C345: pdf (not available)
, or
FITS (not available)
.
1337+637: pdf (not available)
, or
FITS (not available)
.
4C39.25: pdf (not available)
, or
FITS (not available)
.
Comments.
Uniformly weighted dirty map (not useful for bright sources)
produced before self-cal of:
N5218:
pdf
, or
FITS
.
3C345: pdf (not available)
, or
FITS (not available)
.
1337+637: pdf (not available)
, or
FITS (not available)
.
4C39.25: pdf (not available)
, or
FITS (not available)
.
Comments.
Phase corrections applied to a priori calibrated and
fringe-fitted data by self-calibration.
N5218 (not available)
.
3C345
.
1337+637
.
4C39.25
.
Comments.
Amplitude corrections applied to a priori calibrated and
fringe-fitted data by self-calibration.
N5218: pdf (not available)
, or
text file (not available)
, or
statistical summary (not available)
.
3C345:
pdf
, or
text file
, or
statistical summary
.
1337+637:
pdf
, or
text file
, or
statistical summary
.
4C39.25:
pdf
, or
text file
, or
statistical summary
.
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:
N5218 (not available)
.
3C345
.
1337+637
.
4C39.25
.
Comments.
Calibrated visibilities and the source model of:
N5218 (not available)
.
3C345
.
1337+637
.
4C39.25
.
Comments.
Calibrated visibilities against u,v distance for:
N5218:
pdf
, or
png
.
3C345:
pdf
, or
png
.
1337+637:
pdf
, or
png
.
4C39.25:
pdf
, or
png
.
Comments.
u,v coverage for:
N5218:
pdf
, or
png
.
3C345:
pdf
, or
png
.
1337+637:
pdf
, or
png
.
4C39.25:
pdf
, or
png
.
Comments.
Crude maps of sources:
N5218:
pdf
, or
FITS
.
3C345:
pdf
, or
FITS
.
1337+637:
pdf
, or
FITS
.
4C39.25:
pdf
, or
FITS
.
Comments.
3C345 good, 1337+637 OK, 4C39.25 good, NGC 5218 not visible