411 REFERENCE · Wikipedia
(415713) 1998 XX2
Reference material by Wikipedia contributors. This retains its source identity and is not 411 news reporting.
Sub-kilometer asteroid
September 2020
yes #FFC2E0 (415713) 1998 XX 2 (415713) = 1998 XX2 https://www.minorplanetcenter.net/db_search/show_object?utf8=%E2%9C%93&object_id=415713 Minor Planet Center 2014-11-26 LINEAR Lincoln Lab's ETS 8 December 1998 (415713) 1998 XX2 NEOAtenPHA MPO 251988,MPO 315368 last observation: 2014-11-26; arc: 5832 days JPL Small-Body Database Browser: 415713 (1998 XX2) https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=415713 Jet Propulsion Laboratory 8 April 2016 13 January 2016 (JD 2457400.5) 0 5832 days (15.97 yr) 1.013611188 AU Gm on on 0.46896072 AU Gm on 0.741285953 AU Gm on 0.3673687 0.64 yr (233.1 d) 33.3946406 km/s 6.9722566° 74.444600° 1.5442778°/day 151.54037° 153.00166° 0.0161402 AU Gm on 7.716 270–590 mABSOLUTE MAGNITUDE (H) http://neo.jpl.nasa.gov/glossary/h.html https://web.archive.org/web/20010302182040/http://neo.jpl.nasa.gov/glossary/h.html dead 2001-03-02 NASA 19.9
(415713) 1998 XX 2 is a sub-kilometer asteroid, classified as a near-Earth object and potentially hazardous asteroid of the Aten group. It was discovered 8 December 1998, by the Lincoln Near-Earth Asteroid Research at Lincoln Laboratory's Experimental Test Site, and was found to have frequent approaches to the Earth, Venus, and Mercury.
Orbit
The orbit of 1998 XX 2 is well-established, and appears on the list of PHA close approaches to Earth, with the next approach at a distance of 0.020237 AU km mi on on on 28 November 2028.PHA Close Approaches To The Earth https://www.minorplanetcenter.net/iau/lists/PHACloseApp.html Minor Planet Center 2015-06-06 During the years 1900–2200, close approaches are 0.017 AU km mi on on of the Earth (on 30 Nov 1991), as close as 0.035 AU km mi on on of Venus (on 28 Jan 1902 and 8 April 2039), and as close as 0.029 AU km mi on on of Mercury on 12 occasions. For comparison, the distance to the Moon is about 0.0026 AU (384,400 km).October 2020
From 1993 to 1998, 1993 DA was the asteroid with the lowest known aphelion at 1.023 AU, and was thus the closest thing to an Apohele asteroid known at the time. When (33342) 1998 WT 24 was discovered 25 November 1998, it was found to have a slightly smaller aphelion (1.019 AU) than 1993 DA, so (33342) 1998 WT 24 took the title. However, (33342) 1998 WT 24 lost its smallest aphelion title almost immediately when (415713) 1998 XX 2 (aphelion of 1.014 AU) was discovered only a few weeks later on 8 December 1998.October 2020
The Jupiter Tisserand invariant, used to distinguish different kinds of orbits, is 7.7.
References
External links
415713
415713 1998XX2
415713
415713 (415713) 1998 XX 2
415713
415713
415713
415713
415713
19981208