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(179806) 2002 TD66

Near-Earth asteroid

Field	Value
minorplanet	yes
background	#FFC2E0
name
discoverer	LINEAR
discovery_site	Lincoln Lab ETS
discovered	5 October 2002
mp_category	NEOApollo
orbit_ref
epoch	13 January 2016 (JD 2457400.5)
observation_arc	2017 days (5.52 yr)
uncertainty	0
semimajor	1.8580 AU
perihelion	0.86543 AU
aphelion	2.8505 AU
eccentricity	0.53421
period	2.53 yr (925.03 d)
inclination	4.9211°
asc_node	335.73°
arg_peri	125.66°
mean_motion	/ day
mean_anomaly	55.037°
moid	0.00603808 AU
jupiter_moid	2.35661 AU
dimensions	300 meters
270–590 meters [H](https://web.archive.org/web/20010302182040/http://neo.jpl.nasa.gov/glossary/h.html)
rotation	9.455 h
abs_magnitude	20.2

270–590 meters H

**(179806) ** (also written 2002 TD66) is a sub-kilometer asteroid, classified as near-Earth object of the Apollo group. It was discovered on 5 October 2002, by the LINEAR project at Lincoln Laboratory's ETS in Socorro, New Mexico. It was announced on 7 October 2002 and appeared later that day on the JPL current risk page.

Description

Due to the proximity of its orbit to Earth and its estimated size, this object has been classified as a potentially hazardous asteroid (PHA) by the Minor Planet Center in Cambridge, Massachusetts. In November 2006 there were 823 PHAs known. , there are 1261 PHAs known. was removed from the Sentry Risk Table on October 10, 2002. A Doppler observation has helped produce a well known trajectory with a condition code (Uncertainty Parameter U) of 0.

Based on an absolute magnitude (H) of 20.2, the asteroid is estimated to be between 270 and 590 meters in diameter. Radar astronomy shows it is a contact binary asteroid with a diameter of 300 meters and a rotation period of 9.5 hours.

On February 26, 2008, passed 0.04282 AU from Earth. The asteroid also comes close to Venus, Mars, and dwarf planet Ceres.

References

|archive-url=https://web.archive.org/web/20020602101400/http://neo.jpl.nasa.gov/risk/removed.html |url-status=dead |archive-date=2002-06-02

|archive-url=https://web.archive.org/web/20020202160655/http://neo.jpl.nasa.gov/neo/groups.html |url-status=dead |archive-date=2002-02-02

|archive-url=https://web.archive.org/web/20040608071121/http://echo.jpl.nasa.gov/~lance/binary.neas.html |url-status=dead |archive-date=2004-06-08

Info: Wikipedia Source

This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.

apollo-asteroids discoveries-by-linear contact-binary-(small-solar-system-body) potentially-hazardous-asteroids near-earth-objects-removed-from-the-sentry-risk-table astronomical-objects-discovered-in-2002

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