(137108) 1999 AN10

(137108) 1999 AN₁₀
Discovery
Discovered by	LINEAR
Discovery date	13 January 1999
Designations
MPC designation	(137108) 1999 AN10
Minor planet category	NEO · Apollo
Orbital characteristics[1]
	Epoch 13 January 2016 (JD 2457400.5)
	Uncertainty parameter 0
Observation arc	21222 days (58.10 yr)
Aphelion	2.2787 AU (340.89 Gm)
Perihelion	0.63875 AU (95.556 Gm)
Semi-major axis	1.4587 AU (218.22 Gm)
Eccentricity	0.56212
Orbital period	1.76 yr (643.51 d)
Mean anomaly	186.69°
Mean motion	0° 33m 33.948s / day (n)
Inclination	39.932°
Longitude of ascending node	314.41°
Argument of perihelion	268.30°
Earth MOID	0.000708904 AU (106,050.5 km)
Physical characteristics
Dimensions	800 - 1800 m[2][3]
Mass	~2.9×1012 kg[4]
Equatorial escape velocity	~2.8 km/h[4]
Absolute magnitude (H)	17.9[1]

(137108) 1999 AN₁₀ is a sub-kilometer asteroid, classified as near-Earth object and potentially hazardous asteroid of the Apollo group. It was discovered by LINEAR on 13 January 1999.^[5]

On 7 August 2027, this asteroid will pass within 0.0026 AU (390,000 km; 240,000 mi) (~1 lunar distance) of the Earth.^[6]^[7]^[8]^[9] During the close approach, the asteroid should peak at about apparent magnitude 7.3,^[10] and will be visible in binoculars.

1999 AN₁₀ has a well determined orbit with an observation arc of 58 years.^[1] It was found by Andreas Doppler and Arno Gnädig in precovery images from 1955.^[1] When 1999 AN₁₀ only had an observation arc of 123 days, there was a 1 in 10 million chance that it could return on an impact trajectory in 2039.^[11]

On 7 August 1946, the asteroid passed 0.00625 AU (935,000 km; 581,000 mi) from Earth and then 0.00404 AU (604,000 km; 376,000 mi) from the Moon.^[7]

History of close approaches of large near-Earth objects since 1908 ^(A)
PHA	Date	Approach distance in lunar distances			Abs. mag (H)	Diameter ^(C) (m)	Ref ^(D)
PHA	Date	Nominal^(B)	Minimum	Maximum	Abs. mag (H)	Diameter ^(C) (m)	Ref ^(D)
(33342) 1998 WT24	1908-12-16	3.542	3.537	3.547	17.9	556–1795	data
(458732) 2011 MD5	1918-09-17	0.911	0.909	0.913	17.9	556–1795	data
(7482) 1994 PC1	1933-01-17	2.927	2.927	2.928	16.8	749–1357	data
69230 Hermes	1937-10-30	1.926	1.926	1.927	17.5	668–2158	data
69230 Hermes	1942-04-26	1.651	1.651	1.651	17.5	668–2158	data
(137108) 1999 AN10	1946-08-07	2.432	2.429	2.435	17.9	556–1795	data
(33342) 1998 WT24	1956-12-16	3.523	3.523	3.523	17.9	556–1795	data
(163243) 2002 FB3	1961-04-12	4.903	4.900	4.906	16.4	1669–1695	data
(192642) 1999 RD32	1969-08-27	3.627	3.625	3.630	16.3	1161–3750	data
(143651) 2003 QO104	1981-05-18	2.761	2.760	2.761	16.0	1333–4306	data
2017 CH1	1992-06-05	4.691	3.391	6.037	17.9	556–1795	data
(170086) 2002 XR14	1995-06-24	4.259	4.259	4.260	18.0	531–1714	data
(33342) 1998 WT24	2001-12-16	4.859	4.859	4.859	17.9	556–1795	data
4179 Toutatis	2004-09-29	4.031	4.031	4.031	15.30	2440–2450	data
2014 JO25	2017-04-19	4.573	4.573	4.573	17.8	582–1879	data
(137108) 1999 AN10	2027-08-07	1.014	1.010	1.019	17.9	556–1795	data
(35396) 1997 XF11	2028-10-26	2.417	2.417	2.418	16.9	881–2845	data
(154276) 2002 SY50	2071-10-30	3.415	3.412	3.418	17.6	714–1406	data
(164121) 2003 YT1	2073-04-29	4.409	4.409	4.409	16.2	1167–2267	data
(385343) 2002 LV	2076-08-04	4.184	4.183	4.185	16.6	1011–3266	data
(52768) 1998 OR2	2079-04-16	4.611	4.611	4.612	15.8	1462–4721	data
(33342) 1998 WT24	2099-12-18	4.919	4.919	4.919	17.9	556–1795	data
(85182) 1991 AQ	2130-01-27	4.140	4.139	4.141	17.1	1100	data
314082 Dryope	2186-07-16	3.709	2.996	4.786	17.5	668–2158	data
(137126) 1999 CF9	2192-08-21	4.970	4.967	4.973	18.0	531–1714	data
(290772) 2005 VC	2198-05-05	1.951	1.791	2.134	17.6	638–2061	data
^(A) This list includes near-Earth approaches of less than 5 lunar distances (LD) of objects with H brighter than 18. ^(B) Nominal geocentric distance from the center of Earth to the center of the object (Earth has a radius of approximately 6,400 km). ^(C) Diameter: estimated, theoretical mean-diameter based on H and albedo range between X and Y. ^(D) Reference: data source from the JPL SBDB, with AU converted into LD (1 AU≈390 LD) ^(E) Color codes: unobserved at close approach observed during close approach upcoming approaches

References

1 2 3 4 "JPL Small-Body Database Browser: 137108 (1999 AN10)". Retrieved 7 April 2016.
↑ "137108 1999 AN10". The Near-Earth Asteroids Data Base at E.A.R.N. Archived from the original on 29 September 2012. Retrieved 31 January 2008.
↑ "Asteroid Size Estimator". CNEOS NASA/JPL. Retrieved 20 April 2018.
1 2 assume radius of 0.650 km; volume of a sphere * assume density of 2.6g/cm³ (though it could be a loose rubble pile) yields a mass of 2.99e12 kg and an escape velocity of 2.82 km/h.
↑ Hannu, Karttunen; Vilppu, Piirola (1999). Astrophysics with the NOT: Proceedings of the conference held in Turku on August 12–15, 1998. University of Turku. p. 270. ISBN 951-29-1615-0.
↑ Piero Sicoli; Francesco Manca. "Sormano Astronomical Observatory: Table of Next Closest Approaches to the Earth by Asteroids". Astronomical Observatory of Brera. Archived from the original on 1 December 2007. Retrieved 2008-01-31.
1 2 "JPL Close-Approach Data: 137108 (1999 AN10)" (2006-08-04 last obs (arc=51.5 years)). Retrieved 2011-10-17.
↑ "NEODys (137108) 1999AN10". Department of Mathematics, University of Pisa, ITALY. Archived from the original on 2009-04-18. Retrieved 2008-01-31.
↑ "MPEC 1999-N21: 1999 AN10". IAU: Minor Planet Center. 1999-07-12. Retrieved 2008-01-31.
↑ "1999AN10 Ephemerides for 7 Aug 2027". NEODyS (Near Earth Objects - Dynamic Site). Retrieved 2011-10-16.
↑ Paul W. Chodas (1999-05-18). "The Continuing Story Of Asteroid 1999 AN10". Archived from the original on 26 October 2010. Retrieved 2010-10-22.

External links

(137108) 1999 AN10 at AstDyS-2, Asteroids—Dynamic Site
- Ephemeris · Observation prediction · Orbital info · Proper elements · Observational info
(137108) 1999 AN10 at the JPL Small-Body Database
- Close approach · Discovery · Ephemeris · Orbit diagram · Orbital elements · Physical parameters

This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.

[jpldata-1] 1 2 3 4 "JPL Small-Body Database Browser: 137108 (1999 AN10)". Retrieved 7 April 2016.

[phys-2] "137108 1999 AN10". The Near-Earth Asteroids Data Base at E.A.R.N. Archived from the original on 29 September 2012. Retrieved 31 January 2008.

[h-3] "Asteroid Size Estimator". CNEOS NASA/JPL. Retrieved 20 April 2018.

[estimate-4] 1 2 assume radius of 0.650 km; volume of a sphere * assume density of 2.6g/cm³ (though it could be a loose rubble pile) yields a mass of 2.99e12 kg and an escape velocity of 2.82 km/h.

[Hannu-5] Hannu, Karttunen; Vilppu, Piirola (1999). Astrophysics with the NOT: Proceedings of the conference held in Turku on August 12–15, 1998. University of Turku. p. 270. ISBN 951-29-1615-0.

[Sormano-6] Piero Sicoli; Francesco Manca. "Sormano Astronomical Observatory: Table of Next Closest Approaches to the Earth by Asteroids". Astronomical Observatory of Brera. Archived from the original on 1 December 2007. Retrieved 2008-01-31.

[jpl-close-7] 1 2 "JPL Close-Approach Data: 137108 (1999 AN10)" (2006-08-04 last obs (arc=51.5 years)). Retrieved 2011-10-17.

[neodys-8] "NEODys (137108) 1999AN10". Department of Mathematics, University of Pisa, ITALY. Archived from the original on 2009-04-18. Retrieved 2008-01-31.

[MPEC1999-9] "MPEC 1999-N21: 1999 AN10". IAU: Minor Planet Center. 1999-07-12. Retrieved 2008-01-31.

[NEODyS2027-10] "1999AN10 Ephemerides for 7 Aug 2027". NEODyS (Near Earth Objects - Dynamic Site). Retrieved 2011-10-16.

[JPL_Neop-11] Paul W. Chodas (1999-05-18). "The Continuing Story Of Asteroid 1999 AN10". Archived from the original on 26 October 2010. Retrieved 2010-10-22.