국내 최대 기계 및 로봇 연구정보

기술보고서

기술보고서 게시판 내용
타이틀	Michigan Orbital DEbris Survey Telescope Observations of the Geosynchronous Orbital Debris Environment. Observing Years: 2002-2003
저자	Abercromby, K. J.;; Seitzer, P.;; Barker, E. S.;; Cowardin, H. M.;; Matney, M. J.;; Parr-Thumm, T. L.
Keyword	APERTURES;; DATA ACQUISITION;; EARTH ORBITS;; ESTIMATES;; GEOSYNCHRONOUS ORBITS;; SCHMIDT TELESCOPES;; SPACE DEBRIS;; SURVEYS;; TARGETS
URL	http://hdl.handle.net/2060/20100029749
보고서번호	NASA/TP-2010-216128
발행년도	2010
출처	NTRS (NASA Technical Report Server)
ABSTRACT	Orbital debris is a concern to all nations that use satellites or launch space vehicles. The debris field scattered near Earth s geosynchronous orbit (GEO) poses a threat to anything residing in or passing through it. To mitigate risk and minimize this environment s expansion, the environment must be understood. NASA uses the Michigan Orbital DEbris Survey Telescope (MODEST), a University of Michigan-owned 0.61-m aperture Schmidt telescope at Cerro Tololo Inter-American Observatory (CTIO) in Chile, to help characterize the debris environment in GEO. The objectives for this survey are to determine the extent and character of debris in GEO, specifically by obtaining distributions for the brightness, inclination (INC), right ascension of ascending node (RAAN), and mean motion for the debris. This report describes the collection and analysis of 35 nights of data in contract year (CY) 2002 and 16 nights in CY 2003. Twenty-three objects on average were detected nightly for both years: in CY 2002, 76% were correlated targets (CTs) and 24% were uncorrelated targets (UCTs); in CY 2003, 66% were CTs and 34% were UCTs. Estimates can be made from correlated objects on errors associated with derived quantities of range, INC, and RAAN.