EVN User Experiment Pipeline Feedback


Pipeline feedback for experiment EK022C. 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 Feb 17 18:11:16 CET 2006 reynolds@jive.nl

General Comments. ( Brief data summary and scan listing )
L band phase-referencing experiment, observed on 1 Nov 2005. Data rate was 1 Gbps (8 X 16 MHz subbands, dual polarization, two-bit sampling). The target sources 'AMS09', 'AMS19', 'AMS21', 'W171156' were all calibrated using the phase-reference source J1722+5856. 'J2005+7752', 'J1722+6105' were also observed as calibrators. '3C345' was the fringe finder.
8 stations participated. Medicina and Westerbork could not observe the full required bandwidth (due to IF restrictions). Westerbork also had a recording problem which resulted in about 40% of the data being lost.

The EVN reliability indicator (ERI) for this experiment was ERI = 0.89 . ERI* = 0.89 . (Ef=1, Wb=0.6, Jb=1, On=1, Mc=1, Tr=1, Ur=1, Sh=1)

Plots of the autocorrelations .
Comments.
Severe RFI. Worst affected are:
Jb: AIPS IFs 1-3 and 8
Mc: AIPS IF 7
On: AIPS IF 3
Ur: AIPS IF 7
Sh: AIPS IFs 1-3

Plots of the uncalibrated amplitude and phase against time .
Comments.
Phase calibrator clearly detected on all baselines. Phase coherence is good. Mc has no data in IF 1. Wb has no data in IF 8.

Plots of the uncalibrated amplitude and phase against frequency channel .
Comments.
Mc: no data in IF 1. RFI in IF 7 also visible in cross-correlations
Wb: no data in IF 8.
Ef: first scan RCP data should be flagged (LCP in fact recorded - but only for first scan)

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

TSYS against time .
Comments.
Badly affected by presence of RFI in some AIPS IFs

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.
Jb, On: sensitivity a little lower than expected from EVN status table.

Fringe-fit phase solutions (including Parallactic Angle correction).
Comments.
Solutions good at all antennas. Coherence is good.

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.
Fringe-fitting appears to have worked well at all stations.

Calibrated amplitude and phase against frequency channel .
Comments.

Naturally weighted dirty map (not useful for bright sources) produced before self-cal of:
AMS09: postscript , or FITS .
AMS19: postscript , or FITS .
3C345:postscript (not available) , or FITS (not available) .
AMS21: postscript , or FITS .
W171156: postscript , or FITS .
J1722+5856:postscript (not available) , or FITS (not available) .
J2005+7752:postscript (not available) , or FITS (not available) .
J1722+6105:postscript (not available) , or FITS (not available) .
Comments.
Dirty maps not useful for the bright sources.

Uniformly weighted dirty map (not useful for bright sources) produced before self-cal of:
AMS09: postscript , or FITS .
AMS19: postscript , or FITS .
3C345:postscript (not available) , or FITS (not available) .
AMS21: postscript , or FITS .
W171156: postscript , or FITS .
J1722+5856:postscript (not available) , or FITS (not available) .
J2005+7752:postscript (not available) , or FITS (not available) .
J1722+6105:postscript (not available) , or FITS (not available) .
Comments.

Phase corrections applied to a priori calibrated and fringe-fitted data by self-calibration.
AMS09. (not available)
AMS19. (not available)
3C345.
AMS21. (not available)
W171156. (not available)
J1722+5856.
J2005+7752.
J1722+6105.
Comments.

Amplitude corrections applied to a priori calibrated and fringe-fitted data by self-calibration.
AMS09: postscript (not available) , or text file (not available) , or statistical summary (not available) .
AMS19: postscript (not available) , or text file (not available) , or statistical summary (not available) .
3C345: postscript , or text file , or statistical summary .
AMS21: postscript (not available) , or text file (not available) , or statistical summary (not available) .
W171156: postscript (not available) , or text file (not available) , or statistical summary (not available) .
J1722+5856: postscript , or text file , or statistical summary .
J2005+7752: postscript , or text file , or statistical summary .
J1722+6105: postscript , or text file , or statistical summary .
Comments.
A priori calibration good for all antennas except Torun

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.

Residual closure phase (visibility closure phase with model closure phase subtracted) for:
AMS09 (not available) .
AMS19 (not available) .
3C345 .
AMS21 (not available) .
W171156 (not available) .
J1722+5856 .
J2005+7752 .
J1722+6105 .
Comments.

Calibrated visibilities and the source model of:
AMS09 (not available) .
AMS19 (not available) .
3C345 .
AMS21 (not available) .
W171156 (not available) .
J1722+5856 .
J2005+7752 .
J1722+6105 .
Comments.

Calibrated visibilities against u,v distance for:
AMS09. postscript , or png (smaller)
AMS19. postscript , or png (smaller)
3C345. postscript , or png (smaller)
AMS21. postscript , or png (smaller)
W171156. postscript , or png (smaller)
J1722+5856. postscript , or png (smaller)
J2005+7752. postscript , or png (smaller)
J1722+6105. postscript , or png (smaller)
Comments.

u,v coverage for:
AMS09. postscript , or png (smaller)
AMS19. postscript , or png (smaller)
3C345. postscript , or png (smaller)
AMS21. postscript , or png (smaller)
W171156. postscript , or png (smaller)
J1722+5856. postscript , or png (smaller)
J2005+7752. postscript , or png (smaller)
J1722+6105. postscript , or png (smaller)
Comments.

Crude maps of sources:
AMS09: postscript , or FITS .
AMS19: postscript , or FITS .
3C345: postscript , or FITS .
AMS21: postscript , or FITS .
W171156: postscript , or FITS .
J1722+5856: postscript , or FITS .
J2005+7752: postscript , or FITS .
J1722+6105: postscript , or FITS .
Comments.