EVN User Experiment Pipeline Feedback
Last updated: Wed Apr 7 17:23:42 CEST 2010
mahmud@jive.nl
General Comments.
(
Brief data summary
and
scan listing
)
EB044A had 12 stations;Ef, Mc, On, Jb, Ur, Tr, Kn, Da, Wb, Nt, Ys and Sh, 8 8 MHz IFs, dual polarizations, and used 2s integrations. In the pipelining, the target sources were treated as phase-referenced sources and not directly fringed.The target sources 'J1342-0256' and 'J1603+3002' were calibrated using the phase-reference sources. J1354-0206 and J1606+3124 respectively. The SOLINT was set automatically at a representative length of a reference-source scan in a phase-reference cycle (90s judging from the schedule). Ef was used as the reference station.
The EVN reliability indicator (ERI) for this experiment was
ERI = 0.86 . ERI* = 0.86 .
Ef=1, Mc=1, On=1, Jb=1, Ur=1, Tr=1, Kn=0.5, Da=1, Wb=1, Nt=0.75, Ys=0.93 and Sh=1. Losses include Ys missing first 2 scans and no fringes in Nt IF4 and Kn IF3.
Plots of the autocorrelations
Comments.
Each scan plotted separately, all stations. Wb has a very 'wiggly-shaped' bandpass.
plots of the uncalibrated amplitude and phase
against time
Comments.
Full-experiment for Ef-* baselines, no calibration applied.
Plots of the uncalibrated amplitude and phase
against frequency channel
Comments.
Scalar averaged Ef-* baselines, each scan plotted separately. No calibration applied yet.
The uncalibrated amplitude and phase of the crosshand
correlations against frequency channel
(not available)
Comments.
Scalar averaged Ef-* baselines for LR, each scan plotted separately. No calibration applied yet.
TSYS against time
Comments.
TY1 table, each IF/pol on a separate plot. Shanghai has very high Tsys ~0840-0900 (source at very low elevation).
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, each IF/pol on a separate plot. Small jumps in Ur clock (~0.06 microseconds).
Fringe-fit rate solutions
Comments.
SN2 station rate solutions. Fairly constant.
Telescope bandpasses
Comments.
Bandpass table 1. 3C273 and J1606+3124 were used for bandpass calibration.
Calibrated amplitude and phase against time
(a
priori amplitude calibration and fringe-fit solutions applied).
Comments.
Full-experiment for Ef-* baselines, calibrated with CL3.
Calibrated amplitude and phase against frequency
channel
Comments.
Ef-* baselines calibrated with CL3 and BP1. The amp and phase plots self-scale, not necessarily going down to 0 in the case of the amps.
Naturally weighted dirty map (not useful for bright sources)
produced before self-cal of:
J1606+3124: pdf (not available)
, or
FITS (not available)
.
3C273: pdf (not available)
, or
FITS (not available)
.
J1354-0206: pdf (not available)
, or
FITS (not available)
.
J1603+3002:
pdf
, or
FITS
.
J1327+0313: pdf (not available)
, or
FITS (not available)
.
J1342-0256:
pdf
, or
FITS
.
Comments.
Naturually weighted dirty map of the targets.
Uniformly weighted dirty map (not useful for bright sources)
produced before self-cal of:
J1606+3124: pdf (not available)
, or
FITS (not available)
.
3C273: pdf (not available)
, or
FITS (not available)
.
J1354-0206: pdf (not available)
, or
FITS (not available)
.
J1603+3002:
pdf
, or
FITS
.
J1327+0313: pdf (not available)
, or
FITS (not available)
.
J1342-0256:
pdf
, or
FITS
.
Comments.
Uniformly weighted dirty map of the targets.
Phase corrections applied to a priori calibrated and
fringe-fitted data by self-calibration.
J1606+3124
.
3C273
.
J1354-0206
.
J1603+3002 (not available)
.
J1327+0313
.
J1342-0256 (not available)
.
Comments.
Plots of post-SPLIT tables SN1 for the sources.
Amplitude corrections applied to a priori calibrated and
fringe-fitted data by self-calibration.
J1606+3124:
pdf
, or
text file
, or
statistical summary
.
3C273:
pdf
, or
text file
, or
statistical summary
.
J1354-0206:
pdf
, or
text file
, or
statistical summary
.
J1603+3002: pdf (not available)
, or
text file (not available)
, or
statistical summary (not available)
.
J1327+0313:
pdf
, or
text file
, or
statistical summary
.
J1342-0256: pdf (not available)
, or
text file (not available)
, or
statistical summary (not available)
.
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:
J1606+3124
.
3C273
.
J1354-0206
.
J1603+3002 (not available)
.
J1327+0313
.
J1342-0256 (not available)
.
Comments.
Separate files per (fringed) source, showing closure phase plots for all the triangles (not just Ef-*-*). Only stokes=I shown.
Calibrated visibilities and the source model of:
J1606+3124
.
3C273
.
J1354-0206
.
J1603+3002 (not available)
.
J1327+0313
.
J1342-0256 (not available)
.
Comments.
For each (fringed) source, plots of amp/phase on Ef-* baselines, calibrated with (post-SPLIT) table CL3, with a model-line overplotted.
Calibrated visibilities against u,v distance for:
J1606+3124:
pdf
, or
png
.
3C273:
pdf
, or
png
.
J1354-0206:
pdf
, or
png
.
J1603+3002:
pdf
, or
png
.
J1327+0313:
pdf
, or
png
.
J1342-0256:
pdf
, or
png
.
Comments.
For each source, a plot of amp vs. |uv| distance.
u,v coverage for:
J1606+3124:
pdf
, or
png
.
3C273:
pdf
, or
png
.
J1354-0206:
pdf
, or
png
.
J1603+3002:
pdf
, or
png
.
J1327+0313:
pdf
, or
png
.
J1342-0256:
pdf
, or
png
.
Comments.
For each source, a plot of the u-v coverage.
Crude maps of sources:
J1606+3124:
pdf
, or
FITS
.
3C273:
pdf
, or
FITS
.
J1354-0206:
pdf
, or
FITS
.
J1603+3002:
pdf
, or
FITS
.
J1327+0313:
pdf
, or
FITS
.
J1342-0256:
pdf
, or
FITS
.
Comments.
For each source, a CLEAN map resulting from the automated fringing and self-cal iterations (or phase-referencing) in the pipeline script.