EVN Network Monitoring Experiment (NME) Pipeline Feedback


Pipeline feedback for experiment N07M2. If you have any comments on this experiment please email the address below.
A detailed description of the pipeline output is available.

Last updated: Mon Nov 19 16:27:48 CET 2007 muehle@jive.nl

General Comments. ( Brief data summary and scan listing )
M band (6 GHz) network monitoring experiment, observed on 13 June 2007. The data rate was 128 Mbps (16 X 2 MHz subbands, dual polarization, two-bit sampling). The target source '1222+037' was calibrated using the phase-reference source '3C273B'. '3C273B' also served as the fringe finder.
9 stations participated. Effelsberg was set up to the wrong frequency, thus no useful data. Torun was out for about an hour due to a power failure at 16:51. Onsala reported bad weather (rain), but otherwise no known problems.

The EVN reliability indicator (ERI) for this experiment was ERI = 0.68 . ERI* = 0.68 . (Cm=1, Ef=0, Wb=1, Jb=1, On=1, Mc=1, Nt=1, Tr=0.52, Hh=1)

Plots of the autocorrelations
Comments.
RFI in Wb IF7(LL), On IF6(LL) and Mc IF7(RR); Cm IF8(RR) and IF8(LL) out due to bandwidth limitations; 128 pages

plots of the uncalibrated amplitude and phase against time
Comments.
high fringe rate on Cm-Wb and Cm-Mc baselines; lost Tr at about 18:20; 64 pages

Plots of the uncalibrated amplitude and phase against frequency channel
Comments.
Tr: unstable phases and low amplitudes from 18:19 (scan 60); 192 pages

The uncalibrated amplitude and phase of the crosshand correlations against frequency channel
Comments.
nothing unexpected detected; 128 pages

TSYS against time
Comments.
nothing unexpected detected; 15 pages

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.
nothing unexpected detected; 13 pages

Fringe-fit phase solutions (including Parallactic Angle correction).
Comments.
Cm: fast rotation; 13 pages

Fringe-fit delay solutions
Comments.
nothing unexpected detected; 13 pages

Fringe-fit rate solutions
Comments.
nothing unexpected detected; 13 pages

Telescope bandpasses
Comments.
nothing unexpected detected; 2 pages

Calibrated amplitude and phase against time (a priori amplitude calibration and fringe-fit solutions applied).
Comments.
Cm-Wb, Cm-Mc: large deviations of the phase from zero; Mc-Tr(RR), Wb-Tr(RR): significant deviations of the phase from zero at 15:31-15:52; 64 pages

Calibrated amplitude and phase against frequency channel
Comments.
The following IFs have consistently lower amplitudes than the other IFs: Wb: IF1(RR), IF2(RR); Mc: IF7(RR); Nt: IF7(RR), IF8(RR); Jb: IF3(LL), IF4(LL); Wb-Hh seems to resolve small-scale structure of calibrator; Tr: out 16:51 - 17:31, several IFs missing until 17:55; unstable phases and low amplitudes in all IFs starting at 18:18; 192 pages

Naturally weighted dirty map (not useful for bright sources) produced before self-cal of:
3C273B: pdf (not available) , or FITS (not available) .
1222+037: pdf , or FITS .
Comments.

Uniformly weighted dirty map (not useful for bright sources) produced before self-cal of:
3C273B: pdf (not available) , or FITS (not available) .
1222+037: pdf , or FITS .
Comments.

Phase corrections applied to a priori calibrated and fringe-fitted data by self-calibration.
3C273B .
1222+037 (not available) .
Comments.
nothing unexpected detected; 13 pages

Amplitude corrections applied to a priori calibrated and fringe-fitted data by self-calibration.
3C273B: pdf , or text file , or statistical summary .
1222+037: pdf (not available) , or text file (not available) , or statistical summary (not available) .
Comments.
nothing unexpected detected; 13 pages

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.
IF8(RR) and IF8(LL) have in general less solutions and more jumps; Cm: steep rise by ~40 at 16:40; a few jumps (>10) in Cm, Wb and Nt; 13 pages

Residual closure phase (visibility closure phase with model closure phase subtracted) for:
3C273B .
1222+037 (not available) .
Comments.
nothing unexpected detected; some residual source structure, in particular small-scale structure; 12 pages

Calibrated visibilities and the source model of:
3C273B .
1222+037 (not available) .
Comments.
observed phases a bit unstable in IF8(LL); Cm: jump in amplitude at 16:40 (see also telescope sensitivity); 64 pages

Calibrated visibilities against u,v distance for:
3C273B: pdf , or png .
1222+037: pdf , or png .
Comments.

u,v coverage for:
3C273B: pdf , or png .
1222+037: pdf , or png .
Comments.

Crude maps of sources:
3C273B: pdf , or FITS .
1222+037: pdf , or FITS .
Comments.