All-Sky Optical/Radio/X-ray Overlays Catalog & Documentation

The All-Sky Optical Catalogue of Radio/X-ray Associations plus all
documentation is available at http://quasars.org/qorg-data.htm .
Included are full data and particulars on:

(1) 501,761 optical radio/X-ray associated objects.
(2) 86,009 QSO candidates of calculated 40%-99+% chance of being
QSOs.
(3) Full ROSAT field shifts (RASS/HRI/PSPC/WGA) which can be used by
researchers to improve their own optical-ROSAT astrometric fits.
(4) Photometric recalibration of the full APM and USNO-A2.0 optical
catalogs.
(5) 21,498 double radio lobes identified out of the FIRST/NVSS/SUMSS
data using a heuristic data-mining type algorithm.
(6) Documentation in support of the All-Sky (Quasars.org) catalogue
including the paper (submitted).

QUASARS.ORG. There is no second place.
http://quasars.org/qorg-data.htm

Eric Flesch
Wellington, New Zealand
2 April 2004