EVN User Experiment Pipeline Feedback
Last updated: Fri July 5 15:53:26 CEST 2013
duev@jive.nl
General Comments.
(
Brief data summary
and
scan listing
)
L band phase-referencing experiment, observed on 14 March 2013. Data rate was 1 Gbps (16 X 16 MHz subbands, dual polarization, 2 bit sampling). The target source 'J0941+3944' was calibrated using the phase-reference source 'J0939+4141'. 'J0927+3902' was the fringe finder and bandpass calibrator. Participating telescopes were Effelsberg, Jodrell Bank, Westerbork, Onsala, Medicina, Noto, Torun, Svetloe, Zelenchukskaya, Badary, Urumqi, Shanghai. Medicina observed at 512 Mbps (but used 1-bit sampling to recover the full bandwidth).
The EVN reliability indicator (ERI) for this experiment was
ERI = 0.92 . ERI* = 0.92 .
(Ef=0.4 (snow), Jb=1, Wb=0.77, On=1, Mc=0.99, Nt=1, Tr=1, Sv=1, Zc=1, Bd=1, Ur=0.99, Sh=1)
Plots of the autocorrelations
Comments.
Each scan plotted separately, all stations. RFI at all antennas.
plots of the uncalibrated amplitude and phase
against time
Comments.
Full-experiment on Tr-* baselines, no calibration applied. A 1.5-minute plot-averaging was used.
Plots of the uncalibrated amplitude and phase
against frequency channel
Comments.
Scalar averaged Tr-* baselines, each scan plotted separately. No calibration applied yet. RFI on some baselines.
The uncalibrated amplitude and phase of the crosshand
correlations against frequency channel
(not available)
Comments.
Scalar averaged Tr-* baselines for LR, each scan plotted separately. No calibration applied yet.
TSYS against time
Comments.
TY1 table.
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.
Gain amplitude from CL2 table.
Fringe-fit phase solutions
(including Parallactic
Angle correction).
Comments.
CL3 station phase solutions -- CL3 = CL2+SN2, thus also includes the initial amplitude/parallactic angle calibration from CL2 and the fringe solutions from SN2.
Fringe-fit delay solutions
Comments.
SN2 station delay solutions for the fringed sources.
Fringe-fit rate solutions
Comments.
SN2 station rate solutions.
Telescope bandpasses
Comments.
Bandpass table 1.
Calibrated amplitude and phase against time
(a
priori amplitude calibration and fringe-fit solutions applied).
Comments.
Full-experiment for Tr-* baselines, calibrated with CL3.
Calibrated amplitude and phase against frequency
channel
Comments.
Tr-* baselines calibrated with CL3 and BP1.
Naturally weighted dirty map (not useful for bright sources)
produced before self-cal of:
J0941+3944:
pdf
, or
FITS
.
J0939+4141: pdf (not available)
, or
FITS (not available)
.
J0927+3902: pdf (not available)
, or
FITS (not available)
.
Comments.
Uniformly weighted dirty map (not useful for bright sources)
produced before self-cal of:
J0941+3944:
pdf
, or
FITS
.
J0939+4141: pdf (not available)
, or
FITS (not available)
.
J0927+3902: pdf (not available)
, or
FITS (not available)
.
Comments.
Phase corrections applied to a priori calibrated and
fringe-fitted data by self-calibration.
J0941+3944 (not available)
.
J0939+4141
.
J0927+3902
.
Comments.
Plots of post-SPLIT tables SN1 for the sources.
Amplitude corrections applied to a priori calibrated and
fringe-fitted data by self-calibration.
J0941+3944: pdf (not available)
, or
text file (not available)
, or
statistical summary (not available)
.
J0939+4141:
pdf
, or
text file
, or
statistical summary
.
J0927+3902:
pdf
, or
text file
, or
statistical summary
.
Comments.
As above, but for the post-SPLIT table SN2.
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.
CL4 gain-amp.
Residual closure phase (visibility closure phase with model closure phase subtracted) for:
J0941+3944 (not available)
.
J0939+4141
.
J0927+3902
.
Comments.
Separate files per (fringed) source, showing closure phase plots for all the triangles. Only stokes=I shown.
Calibrated visibilities and the source model of:
J0941+3944 (not available)
.
J0939+4141
.
J0927+3902
.
Comments.
For the fringed source, plots of amp/phase on Tr-* baselines, calibrated with (post-SPLIT) table CL3, with a model-line overplotted.
Calibrated visibilities against u,v distance for:
J0941+3944:
pdf
, or
png
.
J0939+4141:
pdf
, or
png
.
J0927+3902:
pdf
, or
png
.
Comments.
For each source, a plot of amp vs. |uv| distance.
u,v coverage for:
J0941+3944:
pdf
, or
png
.
J0939+4141:
pdf
, or
png
.
J0927+3902:
pdf
, or
png
.
Comments.
For each source, a plot of the u-v coverage.
Crude maps of sources:
J0941+3944:
pdf
, or
FITS
.
J0939+4141:
pdf
, or
FITS
.
J0927+3902:
pdf
, or
FITS
.
Comments.
For each source, a CLEAN map resulting from the automated fringing and self-cal iterations in the pipeline script.