The Satellite Catalog Number (also known as NORAD Catalog Number, NORAD ID, NASA catalog number, USSPACECOM object number or simply catalog number and similar variants) is a sequential 5-digit number assigned by USSPACECOM (United States Space Command) to all Earth orbiting satellites in order of identification.
D'Satellite Catalog Number, SCN, (fréier och NORAD Catalog Number, NASA catalog number, USSPACECOM object number or oder einfach Catalog number an aner Varianten) ass e fënnefstellegen Identifikatiounsnumero fir kënschtlech Äerdsatellitten.