Minor Planet Center - the most important Web site for those, who are interested in astrometry of minor planets and comets; orbital elements, minor planet names, various lists and plots, The Minor Planet Electronic Circulars

Minor Planet Center - the most important Web site for those, who are interested in astrometry of minor planets and comets; orbital elements, minor planet names, various lists and plots, The Minor Planet Electronic Circulars

Central Bureau for Astronomical Telegrams - The CBAT is responsible for the dissemination of information on transient astronomical events via the IAU Circulars

LINEAR - the most productive profesional search programme for NEAs

NEAT - Near Earth Asteroids Tracking Team at Haleakala reports several discoveries of NEOs each month

Spacewatch - the profesional search programme for NEAs

Catalina Sky Survey - the profesional search programme for NEAs