2003 YN107

{{DISPLAYTITLE:{{mp|2003 YN|107}}}}

{{Infobox planet

| minorplanet=yes

| background=#FFC2E0

| name={{mp|2003 YN|107}}

| discoverer=LINEAR

| discovered= 20 December 2003

| alt_names=

| mp_category={{Hlist

| NEO

| Aten

}}

| orbit_ref=

| observation_arc=467 days (1.28 yr)

| uncertainty=0

| epoch=13 January 2016 (JD 2457400.5)

| semimajor={{Convert|0.988674|AU|Gm|abbr=on}}

| perihelion={{Convert|0.974906|AU|Gm|abbr=on}}

| aphelion={{Convert|1.00244|AU|Gm|abbr=on|lk=on}}

| eccentricity=0.0139259

| period=0.98 yr (359.1 d)

| inclination=4.32078°

| asc_node=264.41926°

| arg_peri=87.50070°

| mean_anomaly=176.9658°

| mean_motion=1.00259°/day

| avg_speed=29.82 km/s

| moid={{Convert|0.0045919|AU|km|abbr=on}}

| mean_diameter=10–30 m

| rotation=

| albedo=

| spectral_type=

| abs_magnitude=26.5

}}

{{mp|2003 YN|107}} is a tiny asteroid, classified as a near-Earth object of the Aten group moving in a 1:1 mean-motion resonance with Earth. Because of that, it is in a co-orbital configuration relative to Earth.

Discovery, orbit and physical properties

{{mp|2003 YN|107}} was discovered by the Lincoln Near Earth Asteroid Research (LINEAR) system in orbit around the Sun on 20 December 2003. Its diameter is approximately 10 to 30 metres. The object is on NASA's Earth Close Approach list, and is estimated to miss Earth by 0.01 AU. It revolves around the Sun on an Earth-like, almost circular, orbit. Its orbital period of 363.846 days also is very close to the sidereal year.

Co-orbital with Earth and orbital evolution

From approximately 1997 to 2006, the asteroid remained within {{convert|0.1|AU|km mi|abbr=on|lk=off}} of Earth and it appeared to slowly orbit Earth. However, {{mp|2003 YN|107}} is no second moon, as it is not bound to Earth. It is the first discovered member of a postulated group of coorbital objects, or quasi-satellites, which show these path characteristics. Other members of this group include 10563 Izhdubar, 54509 YORP, {{mpl|(66063) 1998 RO|1}}, {{mpl|(85770) 1998 UP|1}}, and {{LoMP|85990|{{mp|(85990) 1999 JV|6}}}}. Before 1996, the asteroid had been on a so-called horseshoe orbit around the Sun, along the Earth's orbit. After 2006, it had regained such an orbit. This makes it very similar to {{mpl|2002 AA|29}}, which will become a quasi-satellite of Earth in approximately 600 years.

{{multiple image | align = left | direction = horizontal | width = 300

| header = Animation of 2003 YN107 orbit from 1900-2100

| image1 = Animation of 2003 YN107 orbit 1900-2100.gif

| caption1 = Relative to Sun and Earth

| image2 = Animation of 2003 YN107 orbit around Earth 1900-2100.gif

| caption2 = Around Earth

| image3 = Animation of 2003 YN107 orbit around Sun 1900-2100.gif

| caption3 = Around Sun

| footer ={{legend2| Yellow| Sun}}{{·}}{{legend2| RoyalBlue| Earth}}{{·}}{{legend2|Magenta| 2003 YN107 }}

}}

References

{{reflist|refs=

{{cite web |url=http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2003%20YN107;cad=1 |title=JPL Small-Body Database Browser: (2003 YN107) |publisher=Jet Propulsion Laboratory |access-date=30 March 2016}}

{{Cite journal | title=Discovery of Earth's quasi-satellite |first1=M. | last1=Connors|last2=Veillet|first2= C.|last3= Brasser|first3= R.|last4= Wiegert|first4= P.|last5= Chodas|first5= P.|last6= Mikkola|first6= S.|last7= Innanen|first7= K. | date=August 2004|journal=Meteoritics & Planetary Science|volume=39|issue=8|pages=1251–1255|doi=10.1111/j.1945-5100.2004.tb00944.x|bibcode = 2004M&PS...39.1251C |doi-access= free}}

{{Cite journal | title=Transient co-orbital asteroids |first1=R. | last1=Brasser|last2=Innanen|first2= K. A.|last3= Connors|first3= M.|last4= Veillet|first4= C.|last5= Wiegert|first5= P.|last6= Mikkola|first6= S.|last7= Chodas|first7= P. W. | date= September 2004|journal=Icarus|volume=171|issue=1|pages=102–109|doi=10.1016/j.icarus.2004.04.019|bibcode = 2004Icar..171..102B }}

{{Cite journal | title=A resonant family of dynamically cold small bodies in the near-Earth asteroid belt |first1=C. | last1=de la Fuente Marcos|last2=de la Fuente Marcos|first2= R. | date=July 2013 |journal=Monthly Notices of the Royal Astronomical Society: Letters|volume=434|issue=1|pages=L1–L5|doi=10.1093/mnrasl/slt062|doi-access=free |arxiv=1305.2825|bibcode= 2013MNRAS.434L...1D}}

}}

External links

[http://www.minorplanetcenter.net/iau/mpec/K03/K03Y76.html MPEC 2003-Y76 : 2003 YN107] (Discovery MPEC)
[https://web.archive.org/web/20021009215033/http://neo.jpl.nasa.gov/neo/close.html NASA's Near-Earth Object close approach tables]
[https://web.archive.org/web/20060929155325/http://science.nasa.gov/headlines/y2006/09jun_moonlets.htm Corkscrew Asteroid], Tony Phillips, Science@NASA, 9 June 2006.
[http://www.lpi.usra.edu/meetings/lpsc2004/pdf/1565.pdf Horseshoe asteroids and quasi-satellites in Earth-like orbits]
{{NeoDys|2003YN107}}
{{ESA-SSA|2003YN107}}
{{JPL small body}}

Category:Minor planet object articles (unnumbered)

20031220

Category:Horseshoe orbit

2003 YN107

Discovery, orbit and physical properties

Co-orbital with Earth and orbital evolution

See also

References

External links