EVN Network Monitoring Experiment (NME) Pipeline Feedback


Pipeline feedback for experiment N04L1. If you have any comments on this experiment please email the address below.
A detailed description of the pipeline output is available.

Last updated: Fri Apr 23 10:49:32 CEST 2004 zparagi@jive.nl

General Comments. ( Brief data summary and scan listing )
L-band NME observed on 20 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 which seemed to be correlator related 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 = 0.571 (Ef=0.6, Mc=0.5/0.5 (known IF limitation), Jb=0.0, Wb=0.66, On=1.0, Nt=1.0, Ur=1.0, Sh=0.375/0.375 (only LCP expected; known IF limitation), Hh=1.0, Tr=0.75, Cm=0.04/0.12 (only ~14 MHz/polarisation expected)).

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:
0851+202 .
Comments.

Uniformly weighted dirty map produced before self-cal of:
0851+202 .
Comments.

Phase corrections applied to a priori calibrated and fringe-fitted data by self-calibration.
0851+202.
Comments.

Amplitude corrections applied to a priori calibrated and fringe-fitted data by self-calibration.
0851+202: 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:
0851+202 .
Comments.

Calibrated visibilities and the source model of:
0851+202 .
Comments.

Calibrated visibilities against u,v distance for:
0851+202. postscript , or png (smaller)
Comments.

u,v coverage for:
0851+202. postscript , or png (smaller)
Comments.

Crude map of 0851+202 from the pipeline .
Comments.