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(31669) 1999 JT6

(31669) 1999 JT6 is an Earth-crossing asteroid belonging to the Apollo family of asteroids which also crosses the orbit of Mars. 1999 JT6 is the asteroid's temporary discovery name. It has now been assigned a permanent number from the Minor Planet Center (31669) indicating that its orbit has been confirmed, but has not (at least so far) been assigned a name. Only a small fraction of asteroids have been named.

(31669) 1999 JT6
Discovery[1]
Discovered byLINEAR
Discovery siteLincoln Lab's ETS
Discovery date12 May 1999
Designations
(31669) 1999 JT6
NEO · Apollo · PHA
Orbital characteristics[1]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 0
Observation arc5209 days (14.26 yr)
Aphelion3.3709 AU (504.28 Gm)
Perihelion0.90316 AU (135.111 Gm)
2.1370 AU (319.69 Gm)
Eccentricity0.57737
3.12 yr (1141.1 d)
.3158 deg/day
167.37°
0° 18m 55.8s / day
Inclination9.5420°
78.848°
39.099°
Earth MOID0.000613623 AU (91,796.7 km)
Physical characteristics
5.807 h (0.2420 d)
16.0

It has an Earth minimum orbit intersection distance of 0.00354 AU (328,978 miles), which is close enough to classify it as a potentially hazardous asteroid (PHA). It will make a close approach to Earth on 14 December 2076 at 0.0260 AU (2,506,321 miles) and an even closer approach to the minor planet Ceres on 16 Feb 2084 at 0.0171 AU (1,587,064 miles).

Orbit of asteroid (31669) 1999 JT6 viewed from the north ecliptic pole at the epoch of 1 January 2010
Line of intersection of orbits of asteroid (31669) 1999 JT6 and Earth's ecliptic plane

References edit

  1. ^ a b "31669 (1999 JT6)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 12 April 2016.

External links edit

  • (31669) 1999 JT6 at NeoDyS-2, Near Earth Objects—Dynamic Site
    • Ephemerides · Observation prediction · Orbital info · MOID · Proper elements · Observational info · Close approaches · Physical info · Orbit animation
  • (31669) 1999 JT6 at ESA–space situational awareness
    • Ephemerides · Observations · Orbit · Physical properties · Summary
  • (31669) 1999 JT6 at the JPL Small-Body Database
    • Close approach · Discovery · Ephemeris · Orbit diagram · Orbital elements · Physical parameters


31669, 1999, 31669, 1999, earth, crossing, asteroid, belonging, apollo, family, asteroids, which, also, crosses, orbit, mars, 1999, asteroid, temporary, discovery, name, been, assigned, permanent, number, from, minor, planet, center, 31669, indicating, that, o. 31669 1999 JT6 is an Earth crossing asteroid belonging to the Apollo family of asteroids which also crosses the orbit of Mars 1999 JT6 is the asteroid s temporary discovery name It has now been assigned a permanent number from the Minor Planet Center 31669 indicating that its orbit has been confirmed but has not at least so far been assigned a name Only a small fraction of asteroids have been named 31669 1999 JT6Discovery 1 Discovered byLINEARDiscovery siteLincoln Lab s ETSDiscovery date12 May 1999DesignationsMPC designation 31669 1999 JT6Minor planet categoryNEO Apollo PHAOrbital characteristics 1 Epoch 13 January 2016 JD 2457400 5 Uncertainty parameter 0Observation arc5209 days 14 26 yr Aphelion3 3709 AU 504 28 Gm Perihelion0 90316 AU 135 111 Gm Semi major axis2 1370 AU 319 69 Gm Eccentricity0 57737Orbital period sidereal 3 12 yr 1141 1 d Average orbital speed 3158 deg dayMean anomaly167 37 Mean motion0 18m 55 8s dayInclination9 5420 Longitude of ascending node78 848 Argument of perihelion39 099 Earth MOID0 000613623 AU 91 796 7 km Physical characteristicsSynodic rotation period5 807 h 0 2420 d Absolute magnitude H 16 0 It has an Earth minimum orbit intersection distance of 0 00354 AU 328 978 miles which is close enough to classify it as a potentially hazardous asteroid PHA It will make a close approach to Earth on 14 December 2076 at 0 0260 AU 2 506 321 miles and an even closer approach to the minor planet Ceres on 16 Feb 2084 at 0 0171 AU 1 587 064 miles Orbit of asteroid 31669 1999 JT6 viewed from the north ecliptic pole at the epoch of 1 January 2010 Line of intersection of orbits of asteroid 31669 1999 JT6 and Earth s ecliptic planeReferences edit a b 31669 1999 JT6 JPL Small Body Database NASA Jet Propulsion Laboratory Retrieved 12 April 2016 External links edit 31669 1999 JT6 at NeoDyS 2 Near Earth Objects Dynamic Site Ephemerides Observation prediction Orbital info MOID Proper elements Observational info Close approaches Physical info Orbit animation 31669 1999 JT6 at ESA space situational awareness Ephemerides Observations Orbit Physical properties Summary 31669 1999 JT6 at the JPL Small Body DatabaseClose approach Discovery Ephemeris Orbit diagram Orbital elements Physical parameters nbsp This near Earth asteroid related article is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title 31669 1999 JT6 amp oldid 1225199678, wikipedia, wiki, book, books, library,

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