CASTOR - For the Curious

ABOUT CASTOR	A simple description of what CASTOR is about, including introductory white papers, advantages, qualifications and published research papers and articles.
SATELLITE BASICS	The basics of the number of satellites, satellite orbits and apparent satellite brightness.
ORBIT MECHANICS	In-depth descriptions of the orbit characteristics of satellites, Keplerian orbit elements, Two-Line Element Sets (TLEs) and a glossary of satellite orbit terms.
ORBIT PROPAGATION	A full description of how a satellite's apparent position can be predicted using the satellite's orbit elements.
SATELLITE ID	A unique service from CASTOR that identifies satellites observed by novice, amateur and professional astronomers.
CASTOR FIRSTS	Highlighting the incredible potential of CASTOR: CASTOR's groundbreaking and pioneering accomplishments from 1999 to the present day.
PAST HEADLINES	A list of former CASTOR headline news.
PAPERS AND ARTICLES	CASTOR articles and papers published since 1999.
CASTOR'S DATA	Handy shortcuts to all the data CASTOR has collected for the past several years. This can include images, tumble periods, photometric (brightness) analyses, astrometric analyses, etc.
LEGAL	All legal information, including business code of conduct, copyright notices, etc.
ABOUT MIKE EARL	Biography, accomplishments and CV for Michael A. Earl, the owner/founder of CASTOR and the creator/webmaster of this web site.
CASTOR ASTRONOMY COURSE	The CASTOR 2010 Spring Astronomy Course.
CASTOR SATELLITE CATALOGUE	A unique catalogue that is comprised of those satellites that can be detected with medium-aperture telescopes (10 to 16 inches) and research-grade CCD detectors. This catalogue continues to grow as CASTOR conducts additional surveys of the accessible satellite population.
IMAGES	Images of the wonders of our heavens collected by the founder of CASTOR since January 1990.
MULTIMEDIA	CASTOR press releases, images, audio clips and video clips.
NIGHT SKY CONSERVATION	An innovative conservation program created by CASTOR and the Mississippi Valley Conservation Authority (MVC) to educate the public about the effects and minimization of light pollution.