EVN User Experiment Pipeline Feedback


Pipeline feedback for experiment EG037A. 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 Aug 6 14:25:06 CEST 2007 cimo@jive.nl

General Comments. ( Brief data summary and scan listing )
C-band phase-referencing experiment, observed on 1 Jun 2007. Data rate was 1 Gbps (8 X 16 MHz subbands, dual polarization, two-bit sampling). The target sources were calibrated using the phase-reference sources 'J1221+4411', 'J1308+3546',and 'J1340+3754'. '3C345' was the fringe finder.
9 stations participated. Nt has problems with IF7 & 8 (LL). Ef has problems with IF5 & 6 (LL). Wb IF8 fell outside the available bandwidth, and has been flagged.
Wb, Sh and Ef had severe problems with the recording system:

From the Westerbork's feedback: "Big problems with the Westerbork file server (RAID card and possible also disk damage); we had to replace the server on Friday evening 1st June. The file server had also given errors on Thursday. We recorded from 15:30 to 16:44 (operator error had not enabled 2nd bank while checking the local system). Observations restarted at 20:49UT, but most of the data from 20:49 to 00:30 gave large numbers of data_check errors."

From the Effelsberg's feedback: "Observing system restarted at 2150 UT. There may be loss of data before this." No valid data before 21:50UT.

Regarding Shanghai, no data after ~15:50UT. The last 2 disks of the Mk5 disk pack did not work correctly.

The EVN reliability indicator (ERI) for this experiment was ERI = 0.55 . ERI* = 0.55 . (Jb=1, ON=1, Mc=1, Ur=1, Nt=0.956, Sh=0.037, Tr=0.991, Ef=0.297, Wb=0.547)

Plots of the autocorrelations
Comments.
444 pages. Each scan plotted separately, all stations.

plots of the uncalibrated amplitude and phase against time
Comments.
32 pages. Full-experiment for Mc-* baselines, no calibration applied.

Plots of the uncalibrated amplitude and phase against frequency channel
Comments.
444 pages. Scalar averaged Mc-* baselines, each scan plotted separately. No calibration applied yet.

The uncalibrated amplitude and phase of the crosshand correlations against frequency channel
Comments.
214 pages.

TSYS against time
Comments.
15 pages. TY1 table, each IF/pol on a separate plot.

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.
15 pages. Gain amplitude from CL2 table

Fringe-fit phase solutions (including Parallactic Angle correction).
Comments.
14 pages. 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.
14 pages. SN2 station delay solutions for the fringed sources, each IF/pol on a separate plot.

Fringe-fit rate solutions
Comments.
14 pages. SN2 station rate solutions.

Telescope bandpasses
Comments.
2 pages. Bandpass table 1. 3C345 was used for bandpass calibration.

Calibrated amplitude and phase against time (a priori amplitude calibration and fringe-fit solutions applied).
Comments.
32 pages. Full-experiment for Mc-* baselines, calibrated with CL3.

Calibrated amplitude and phase against frequency channel
Comments.
401 pages. Mc-* baselines calibrated with CL3 and BP1

Naturally weighted dirty map (not useful for bright sources) produced before self-cal of:
NGC5273: pdf , or FITS .
NGC4051: pdf , or FITS .
J1340+3754: pdf (not available) , or FITS (not available) .
J1221+4411: pdf (not available) , or FITS (not available) .
NGC5033: pdf , or FITS .
J1308+3546: pdf (not available) , or FITS (not available) .
3C345: pdf (not available) , or FITS (not available) .
Comments.

Uniformly weighted dirty map (not useful for bright sources) produced before self-cal of:
NGC5273: pdf , or FITS .
NGC4051: pdf , or FITS .
J1340+3754: pdf (not available) , or FITS (not available) .
J1221+4411: pdf (not available) , or FITS (not available) .
NGC5033: pdf , or FITS .
J1308+3546: pdf (not available) , or FITS (not available) .
3C345: pdf (not available) , or FITS (not available) .
Comments.

Phase corrections applied to a priori calibrated and fringe-fitted data by self-calibration.
NGC5273 (not available) .
NGC4051 (not available) .
J1340+3754 .
J1221+4411 .
NGC5033 (not available) .
J1308+3546 .
3C345 .
Comments.

Amplitude corrections applied to a priori calibrated and fringe-fitted data by self-calibration.
NGC5273: pdf (not available) , or text file (not available) , or statistical summary (not available) .
NGC4051: pdf (not available) , or text file (not available) , or statistical summary (not available) .
J1340+3754: pdf , or text file , or statistical summary .
J1221+4411: pdf , or text file , or statistical summary .
NGC5033: pdf (not available) , or text file (not available) , or statistical summary (not available) .
J1308+3546: pdf , or text file , or statistical summary .
3C345: pdf , or text file , or statistical summary .
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.
13 pages. CL4 gain-amp.

Residual closure phase (visibility closure phase with model closure phase subtracted) for:
NGC5273 (not available) .
NGC4051 (not available) .
J1340+3754 .
J1221+4411 .
NGC5033 (not available) .
J1308+3546 .
3C345 .
Comments.

Calibrated visibilities and the source model of:
NGC5273 (not available) .
NGC4051 (not available) .
J1340+3754 .
J1221+4411 .
NGC5033 (not available) .
J1308+3546 .
3C345 .
Comments.

Calibrated visibilities against u,v distance for:
NGC5273: pdf , or png .
NGC4051: pdf , or png .
J1340+3754: pdf , or png .
J1221+4411: pdf , or png .
NGC5033: pdf , or png .
J1308+3546: pdf , or png .
3C345: pdf , or png .
Comments.

u,v coverage for:
NGC5273: pdf , or png .
NGC4051: pdf , or png .
J1340+3754: pdf , or png .
J1221+4411: pdf , or png .
NGC5033: pdf , or png .
J1308+3546: pdf , or png .
3C345: pdf , or png .
Comments.

Crude maps of sources:
NGC5273: pdf , or FITS .
NGC4051: pdf , or FITS .
J1340+3754: pdf , or FITS .
J1221+4411: pdf , or FITS .
NGC5033: pdf , or FITS .
J1308+3546: pdf , or FITS .
3C345: pdf , or FITS .
Comments.