EVN Network Monitoring Experiment (NME) Pipeline Feedback
Last updated: Tue Mar 30 15:54:19 CEST 2004
zparagi@jive.nl
General Comments.
(
Brief data summary
and
scan listing
)
C-band NME observed on 14 Feb. 2004 (session 1/2004). This experiment was recorded at 512 Mbps using
1-bit sampling to test wide band setups at the stations. Dual polarisation, 128 MHz bandwidth. Disk
recording failed in Jodrell Bank. The problem affected only the two headstacks experiments (mainly NMEs)
during the session.
In Wb the most upper channels were not locked in this experiment, but in principle up to 160 MHz
bandwidth should be available. In Cm a bad track was remapped to a system track.
Because of various constraints, this experiment had more than usual playback problems. The
affected correlator jobs were not redone. The data losses due to poor playback (especially on the
2nd headstack) were not taken into account in the ERI estimation below.
The ratio of the expected to the observed number of good visibilities is estimated as ERI = 0.744
(Ef=1.0, Mc=1.0, Jb=0.0, Wb=0.75, On=1.0, Nt=1.0, Ur=1.0, Sh=0.5/0.5 (only LCP expected), Hh=1.0,
Tr=1.0, Cm=0.12/0.12 (only ~14 MHz/polarisation)).
Note that because the 1-bit Van Vleck correction was
not applied at the correlator, the amplitudes are low
by a factor of 2/pi.
Plots of the autocorrelations
.
Comments.
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.
EVN Status Table).
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 produced before self-cal of:
0234+285
.
3C454.3
.
Comments.
Uniformly weighted dirty map produced before self-cal of:
0234+285
.
3C454.3
.
Comments.
Phase corrections applied to a priori calibrated and fringe-fitted data by self-calibration.
0234+285.
3C454.3.
Comments.
Amplitude corrections applied to a priori calibrated and fringe-fitted data by self-calibration.
0234+285:
postscript
, or
text file
.
3C454.3:
postscript
, or
text file
.
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.
EVN Status Table).
Residual closure phase (visibility closure phase with model closure phase subtracted) for:
0234+285
.
3C454.3
.
Comments.
Calibrated visibilities and the source model of:
0234+285
.
3C454.3
.
Comments.
Calibrated visibilities against u,v distance for:
0234+285.
postscript
, or
png (smaller)
3C454.3.
postscript
, or
png (smaller)
Comments.
u,v coverage for:
0234+285.
postscript
, or
png (smaller)
3C454.3.
postscript
, or
png (smaller)
Comments.
Crude map of 0234+285 from the pipeline
.
Crude map of 3C454.3 from the pipeline
.
Comments.