EVN User Experiment Pipeline Feedback


Pipeline feedback for experiment F04C4. 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 Jul 2 14:36:41 CEST 2004 campbell@jive.nl

General Comments. ( Brief data summary and scan listing )
This experiment is a test of using both Jb1 & Jb2 in phase referencing, where Jb1 doesn't make all the source-changes in the schedule. It comprised 6 stations with 2 8MHz IFs at C-band, each with 2 polarizations & 32 frequency points per IF/pol. Integration times were 2s. Jb (Lovell) missed some J0126 scans intentionally. Considerably more information is included in the experiment's cover letter on the standard-plots portion of the archive. Pipeline was done without any phase-referencing between the (bright) pairs J0126-J0122 & J0126-J0123.

The EVN reliability indicator was ERI=0.87. ERI estimates the ratio of good -to- expected visibilities. This was calculated by considering Jb2's IF1/R having always 0-weight & Ef missing a little time in the beginning.

Plots of the autocorrelations .
Comments.
26p of plots, in ~22min chunks. RFI and/or internal birdies in Jb2 IF2. See cover letter for more details.

Plots of the uncalibrated amplitude and phase against time .
Comments.
7p of plots, full-experiment Mc-* baselines, no calibration applied. (Mc used as the reference station because of Ef's absence in the beginning.)

Plots of the uncalibrated amplitude and phase against frequency channel .
Comments.
140p of plots, each scan of all sources except J0123 for Mc-* baselines, both parallel-hand polarizations. (J0123 was left out of the pipelining because it had enough marginal fringe solutions to cause problems for the automattic plotting algorithms; the behavior of J0123 can be gleaned from the amp(t) & phs(t) standard plots.)

The uncalibrated amplitude and phase of the crosshand correlations against frequency channel (not available) .
Comments.

TSYS against time .
Comments.
The TY1 table.

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.
The CL2 table.

Fringe-fit phase solutions (including Parallactic Angle correction).
Comments.
CL station phase solutions; a copule suspect 'connections' can be seen.

Fringe-fit delay solutions .
Comments.
SN2 station delay solutions.

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

Telescope bandpasses .
Comments.
bandpass table 1.

Calibrated amplitude and phase against time (a priori amplitude calibration and fringe-fit solutions applied).
Comments.
Mc-* baselines calibrated with table CL3. Times Jb1 intentionally off-source easy to see in the phases. Weaker detections on Jv IF2 noticeable.

Calibrated amplitude and phase against frequency channel .
Comments.
103p of plots, showing Mc-* baselines for each scan calibrated with CL3 and BP1. Some scans for Jv (Jb2) IF2/R are sometimes missing.

Naturally weighted dirty map produced before self-cal of:
J0126+2559: postscript , or FITS .
Comments.
Natural-weighted (dirty) maps for all sources (except J0123).

Uniformly weighted dirty map produced before self-cal of:
J0126+2559: postscript , or FITS .
Comments.
Uniform-weighted (dirty) maps of the above calibrators.

Phase corrections applied to a priori calibrated and fringe-fitted data by self-calibration.
J0126+2559.
Comments.
For each of the above calibrators, plots of the post-SPLIT table SN1.

Amplitude corrections applied to a priori calibrated and fringe-fitted data by self-calibration.
J0126+2559: postscript , or text file .
Comments.
As above, but for the post-SPLIT table SN2

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.
The CL4 gain-amp.

Residual closure phase (visibility closure phase with model closure phase subtracted) for:
J0126+2559 .
Comments.
Plots showing closure phase for the triangles (not just Mc-*-*).

Calibrated visibilities and the source model of:
J0126+2559 .
Comments.
For each of the calibrators, plots of amp/phase on Mc-* baselines calibrated with (post-SPLIT) table CL3, with a model-line overplotted.

Calibrated visibilities against u,v distance for:
J0126+2559. postscript , or png (smaller)
Comments.
For each of the calibrators, a plot of amp vs. |uv| distance.

u,v coverage for:
J0126+2559. postscript , or png (smaller)
Comments.
For each of the calibrators, a plot of the u-v coverage. (DA193 & 0234 had only one scan).

J0126+2559: postscript , or FITS .
Comments.
For each of the calibrators, a CLEAN map resulting from the automated fringing/calibrating pipeline script.