EVN User Experiment Pipeline Feedback
Last updated: Fri May 19 13:55:33 CEST 2006
bignall@jive.nl
General Comments.
(
Brief data summary
and
scan listing
)
ED026 is an X band phase-referencing experiment, observed on 18 Feb 2006. Data rate was 1 Gbps (8 X 16 MHz subbands, dual polarization, two-bit sampling). The target source '2MASS0036' was calibrated using the phase-reference source 'J0028+2000'. '0235+164' was also observed as a calibrator. '3C454.3' was the fringe finder.
7 stations participated. A cable interference problem affected the recording at Hart, such that no data were recoverable (apart from a tiny bit near the beginning of the experiment). Westerbork observed with a wrong version of the schedule, so data after the first 5 hours were lost. Noto has no fringes from ~17:45 UT onwards, whereas fringes were clearly seen before this time on the phase reference source J0028+2000 between Noto and the bigger telescopes. The log file reported the antenna being off source from UT 17:44:17 although it was unclear whether there was really a problem with the antenna. Medicina has reduced S/N between UT 11:07 and 13:49 due to a disk problem, but the data are otherwise OK.
The EVN reliability indicator (ERI) for this experiment was
ERI = 0.51 . ERI* = 0.51 .
(EF=1, WB=0.37, MC=1, NT=0.78, HH=0, RO=1, AR=1)
Plots of the autocorrelations
Comments.
Wb has no data in the highest frequency band (known limitation).
Nt has RCP only at X-band.
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.
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:
J0028+2000: pdf (not available)
, or
FITS (not available)
.
3C454.3: pdf (not available)
, or
FITS (not available)
.
0235+164: pdf (not available)
, or
FITS (not available)
.
2MASS0036:
pdf
, or
FITS
.
Comments.
Uniformly weighted dirty map (not useful for bright sources)
produced before self-cal of:
J0028+2000: pdf (not available)
, or
FITS (not available)
.
3C454.3: pdf (not available)
, or
FITS (not available)
.
0235+164: pdf (not available)
, or
FITS (not available)
.
2MASS0036:
pdf
, or
FITS
.
Comments.
Phase corrections applied to a priori calibrated and
fringe-fitted data by self-calibration.
J0028+2000
.
3C454.3
.
0235+164
.
2MASS0036 (not available)
.
Comments.
Amplitude corrections applied to a priori calibrated and
fringe-fitted data by self-calibration.
J0028+2000:
pdf
, or
text file
, or
statistical summary
.
3C454.3:
pdf
, or
text file
, or
statistical summary
.
0235+164: pdf (not available)
, or
text file (not available)
, or
statistical summary (not available)
.
2MASS0036: 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:
J0028+2000
.
3C454.3
.
0235+164 (not available)
.
2MASS0036 (not available)
.
Comments.
Calibrated visibilities and the source model of:
J0028+2000
.
3C454.3
.
0235+164 (not available)
.
2MASS0036 (not available)
.
Comments.
Calibrated visibilities against u,v distance for:
J0028+2000:
pdf
, or
png
.
3C454.3:
pdf
, or
png
.
0235+164: pdf (not available)
, or
png (not available)
.
2MASS0036:
pdf
, or
png
.
Comments.
u,v coverage for:
J0028+2000:
pdf
, or
png
.
3C454.3:
pdf
, or
png
.
0235+164: pdf (not available)
, or
png (not available)
.
2MASS0036:
pdf
, or
png
.
Comments.
Crude maps of sources:
J0028+2000:
pdf
, or
FITS
.
3C454.3:
pdf
, or
FITS
.
0235+164: pdf (not available)
, or
FITS (not available)
.
2MASS0036:
pdf
, or
FITS
.
Comments.