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2004 TG10

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2004 TG10
Discovery
Discovered bySpacewatch
Discovery siteKitt Peak Obs.
Discovery date8 October 2004
(discovery: first observed only)
Designations
MPC designation2004 TG10
Minor planet categoryNEO · Apollo · PHA
Orbital characteristics
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 axis2.2341 AU
Eccentricity0.8619
Orbital period (sidereal)3.34 yr (1,220 days)
Mean anomaly278.07°
Mean motion0° 17 42.36 / day
Inclination4.1802°
Longitude of ascending node205.10°
Argument of perihelion317.37°
Earth MOID0.0225 AU · 8.8 LD
Jupiter MOID0.8877 AU
Physical characteristics
Dimensions0.35–0.78 km
1.316±0.605 km
Geometric albedo0.018±0.037
Absolute magnitude (H)19.4

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, it may be a fragment of Comet Encke and is the source of the Northern Taurids meteor shower seen annually in November and the June Beta Taurids. The asteroid may be larger than one kilometer in diameter.

Orbit

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.

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

Physical characteristics

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, 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.

TG10 compared to Comet Encke
AU 2004 TG10 Encke
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

  1. ^ "JPL Small-Body Database Browser: (2004 TG10)" (2014-12-04 last obs.). Jet Propulsion Laboratory. Retrieved 29 July 2017.
  2. ^ "2004 TG10". Minor Planet Center. Retrieved 29 July 2017.
  3. ^ 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.
  4. ^ 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.
  5. Beth Dalbey (24 October 2017). "Taurids Meteor Shower Fireballs: Peak Dates, What To Expect". Retrieved 11 November 2017.
  6. Meteor showers and their parent comets pg 470 by Peter Jenniskens
  7. "JPL Small-Body Database Browser: 2P/Encke" (last observation: 2008-09-30). Retrieved 19 May 2009.

External links

Small Solar System bodies
Minor planets
Asteroid
Distant minor planet
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