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PHA Close Approaches To The Earth, Minor Planet Center; Asteroid Lightcurve Database (LCDB), query form (info Archived 16 December 2017 at the Wayback Machine) Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend (467336) 2002 LT38 at NeoDyS-2, Near Earth Objects—Dynamic Site
The Center for Near-Earth Object Studies (CNEOS) is the Jet Propulsion Laboratory's (JPL's) facility for computing asteroid and comet orbits and their probability of Earth impact. [1] [2] CNEOS is located at, and operated by, Caltech in Pasadena, California. CNEOS computes high-precision orbits for Near-Earth Objects (NEOs).
As of September 2023, there are over 32,955 near-Earth objects of which roughly 1,620 near-Earth asteroids are listed on the risk table. [1] Only around 19 objects on the risk table are large enough to qualify as potentially hazardous objects with a diameter greater than 140 meters (absolute magnitude brighter than 22). About 99% of the objects ...
NEODyS [1] (Near Earth Objects Dynamic Site) is an Italian service that provides information on near-Earth objects with a Web-based interface. It is based on a continually and (almost) automatically maintained database of near earth asteroid orbits. This site provides a number of services to the NEO community.
NEO-MAPP (Near-Earth-Object Modelling and Payloads for Protection) [1] is a project for studying planetary defence and asteroid exploration.. This project is focused on two main topics, that are: on one side, maturation of existing digital modelisation capacities of various process governing asteroids evolution (impact, dynamic, structural evolution) and its adaptation to specific use cases ...
About 1000 objects per year EURONEAR: 2006 [2] International Near-Earth Asteroid Survey: Lincoln Near-Earth Asteroid Research (LINEAR) 1998 Lowell Observatory Near-Earth-Object Search: 1993 2008 Near Earth Object Surveillance Satellite: 2013 Microsatellite observatory Near-Earth Asteroid Tracking (NEAT) 1995 2007 NELIOTA: 2017 2023
Articles about near-Earth objects, including any small Solar System body whose orbit brings it into proximity with Earth.By convention, a Solar System body is a NEO if its closest approach to the Sun is less than 1.3 astronomical units (AU).
Near-Earth comets (NECs) are objects in a near-Earth orbit with a tail or coma made up of dust, gas or ionized particles emitted by a solid nucleus. Comet nuclei are typically less dense than asteroids but they pass Earth at higher relative speeds, thus the impact energy of a comet nucleus is slightly larger than that of a similar-sized ...