EVN User Experiment Pipeline Feedback


Pipeline feedback for experiment EG030_1. 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 15 10:05:04 CET 2004 campbell@jive.nl

General Comments. ( Brief data summary and scan listing )
This part of EG030 comprised 8 stations with 1 16MHz IFs (DC edge 1575.13MHz) with 2 polarizations. This is the part with Cm but without Mc. There were 512 frequency points per IF/pol, and integration times were 2s. Considerably more information is included in the experiment's cover letter on the standard-plots portion of the EVN Archive. In the pipelining, only B1530, J1613, and J1516 were fringed. A SOLINT of 1.0min was used.

The EVN reliability indicator was ERI=0.868. ERI estimates the ratio of good -to- expected visibilities. Factors contributing to ERI loss include the lack of fringes to On early on, the loss of RCP from Wb for a couple passes, and the odd diagonal weight or tape drop-out (as discussed in the cover letter).

Plots of the autocorrelations .
Comments.
300p of plots, B1530 scans. RFI and/or internal birdies in several stations' IF/pols. See cover letter for more details.

Plots of the uncalibrated amplitude and phase against time .
Comments.
full-experiment Ef-* baselines, no calibration applied.

Plots of the uncalibrated amplitude and phase against frequency channel .
Comments.
298p of plots, each scan of B1530, J1613, and J1516 for Ef-* baselines, both parallel-hand polarizations (subsequent plots are limited to these sources).

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

TSYS against time .
Comments.
TY1 table. There was no Cm Tsys info -- set to 1.

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.
gain from CL2 table.

Fringe-fit phase solutions (including Parallactic Angle correction).
Comments.
CL3 station phase solutions. some phase-connections are clearly affected by RATE outliers (Jb LCP at ~2030).

Fringe-fit delay solutions .
Comments.
SN2 station delay solutions. Some obvious outliers (On RCP at ~2100). Evident deviations between residual delay for B1530 & J1613. Noticeable slope for Ar.

Fringe-fit rate solutions .
Comments.
SN2 station rate solutions (a few obvious outliers that affect automatic AIPS-determined phase-connection decisions).

Telescope bandpasses .
Comments.
bandpass table 1. Only J1613 & J1516 were used for bandpass calibration.

Calibrated amplitude and phase against time (a priori amplitude calibration and fringe-fit solutions applied).
Comments.
Ef-* baselines calibrated with table CL3.

Calibrated amplitude and phase against frequency channel .
Comments.
297p of plots, showing Ef-* baselines calibrated with CL3 and BP1. The edges of the band have been apparently overcompensated in the bandpass correction process.

Naturally weighted dirty map produced before self-cal of:
B1530+235: postscript , or FITS .
J1613+341: postscript , or FITS .
J1516+193: postscript , or FITS .
Comments.
Natural-weighted (dirty) maps for the calibrators B1530, J1613, and J1516 (the latter two having very few scans -- 1 for J1516 leading to a very elliptical beam indeed)

Uniformly weighted dirty map produced before self-cal of:
B1530+235: postscript , or FITS .
J1613+341: postscript , or FITS .
J1516+193: 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.
B1530+235.
J1613+341.
J1516+193.
Comments.
For each of the calibrators (B1530, J1613, J1516), plots of post-SPLIT tables SN1. J1516 had only 1 scan.

Amplitude corrections applied to a priori calibrated and fringe-fitted data by self-calibration.
B1530+235: postscript , or text file .
J1613+341: postscript , or text file .
J1516+193: 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.
CL4 gain-amp.

Residual closure phase (visibility closure phase with model closure phase subtracted) for:
B1530+235 .
J1613+341 .
J1516+193 .
Comments.
For each of the calibrators (B1530, J1613, J1516), 24p of plots showing closure phase for the triangles (not just Ef-*-*).

Calibrated visibilities and the source model of:
B1530+235 .
J1613+341 .
J1516+193 .
Comments.
For each of the calibrators, plots of amp/phase on Ef-* baselines calibrated with (post-SPLIT) table CL3, with a model-line overplotted. J1516 has only 1 scan, so its time-axis has quite high resolution indeed...

Calibrated visibilities against u,v distance for:
B1530+235. postscript , or png (smaller)
J1613+341. postscript , or png (smaller)
J1516+193. postscript , or png (smaller)
Comments.
For each of the calibrators, a plot of amp vs. |uv| distance.

u,v coverage for:
B1530+235. postscript , or png (smaller)
J1613+341. postscript , or png (smaller)
J1516+193. postscript , or png (smaller)
Comments.
For each of the calibrators, a plot of the u-v coverage. (comparing J1516 to the eg030_2 pipeline shows the effect of replacing Cm with Mc on the 'snapshot' u-v coverage)

B1530+235: postscript , or FITS .
J1613+341: postscript , or FITS .
J1516+193: postscript , or FITS .
Comments.
For each of the calibrators, a CLEAN map resulting from the automated fringing/self-cal pipeline script.