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Contents

   



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1 Orbit  





2 Physical characteristics  





3 References  





4 External links  














2004 TG10






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From Wikipedia, the free encyclopedia
 


2004 TG10
Discovery[1][2]
Discovered bySpacewatch
Discovery siteKitt Peak Obs.
Discovery date8 October 2004
(discovery: first observed only)
Designations

MPC designation

2004 TG10

Minor planet category

NEO · Apollo · PHA[1]
Orbital characteristics[1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc10.16 yr (3,712 days)
Aphelion4.1597 AU
Perihelion0.3086 AU

Semi-major axis

2.2341 AU
Eccentricity0.8619

Orbital period (sidereal)

3.34 yr (1,220 days)

Mean anomaly

278.07°

Mean motion

0° 17m 42.36s / day
Inclination4.1802°

Longitude of ascending node

205.10°

Argument of perihelion

317.37°
Earth MOID0.0225 AU · 8.8 LD
Jupiter MOID0.8877 AU
Physical characteristics
Dimensions0.35–0.78 km[3]
1.316±0.605km[4]

Geometric albedo

0.018±0.037[4]

Absolute magnitude (H)

19.4[1][3]

2004 TG10, is an eccentric asteroid, classified as near-Earth object and potentially hazardous asteroid of the Apollo group. First observed by the Spacewatch survey on 8 October 2004,[2] it may be a fragment of Comet Encke and is the source of the Northern Taurids meteor shower seen annually in November[3][5] and the June Beta Taurids.[6] The asteroid may be larger than one kilometer in diameter.

Orbit[edit]

2004 TG10 orbits the Sun at a distance of 0.3–4.2 AU once every 3 years and 4 months (1,220 days). Its orbit has an eccentricity of 0.86 and an inclination of 4° with respect to the ecliptic.[1]

It has a Earth minimum orbital intersection distance of 0.0225 AU (3,370,000 km), which corresponds to 8.8 lunar distances.[1]

Physical characteristics[edit]

According to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, the asteroid measures 1.316 kilometers in diameter and its surface has an exceptionally low albedo of 0.018,[4] while Porubcan estimates a diameter of 350 to 780 meters, based on an albedo of 0.25 to 0.05, which typically covers most S-type and C-type asteroids.[3]

TG10 compared to Comet Encke
AU 2004 TG10 Encke[7]
Semi-major axis 2.24 2.21
Perihelion 0.313 0.338
Aphelion 4.17 4.09
Eccentricity 0.859 0.847
Longitude of perihelion 162.455° 161.113°

References[edit]

  1. ^ a b c d e f "JPL Small-Body Database Browser: (2004 TG10)" (2014-12-04 last obs.). Jet Propulsion Laboratory. Retrieved 29 July 2017.
  • ^ a b "2004 TG10". Minor Planet Center. Retrieved 29 July 2017.
  • ^ a b c d Porubčan, V.; Kornoš, L.; Williams, I. P. (June 2006). "The Taurid complex meteor showers and asteroids". Contributions of the Astronomical Observatory Skalnaté Pleso. 36: 103–117. arXiv:0905.1639. Bibcode:2006CoSka..36..103P. Retrieved 29 July 2017.
  • ^ a b c Nugent, C. R.; Mainzer, A.; Masiero, J.; Bauer, J.; Cutri, R. M.; Grav, T.; et al. (December 2015). "NEOWISE Reactivation Mission Year One: Preliminary Asteroid Diameters and Albedos". The Astrophysical Journal. 814 (2): 13. arXiv:1509.02522. Bibcode:2015ApJ...814..117N. doi:10.1088/0004-637X/814/2/117. Retrieved 29 July 2017.
  • ^ Beth Dalbey (24 October 2017). "Taurids Meteor Shower Fireballs: Peak Dates, What To Expect". Retrieved 11 November 2017.
  • ^ Meteor showers and their parent comets pg 470byPeter Jenniskens
  • ^ "JPL Small-Body Database Browser: 2P/Encke" (last observation: 2008-09-30). Retrieved 19 May 2009.
  • External links[edit]


    Retrieved from "https://en.wikipedia.org/w/index.php?title=2004_TG10&oldid=1187131183"

    Categories: 
    Apollo asteroids
    Discoveries by the Spacewatch project
    Minor planet object articles (unnumbered)
    Potentially hazardous asteroids
    Astronomical objects discovered in 2004
    Hidden categories: 
    Use dmy dates from February 2018
    Articles with JPL SBDB identifiers
    Articles with MPC identifiers
     



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