2005 WY₅₅

2005 WY₅₅ is a near-Earth Asteroid belonging to the Apollo group.[3] It was first discovered on 26 November 2005.[1] The asteroid will pass within 330,000 km (0.9 lunar distances) from the Earth on 28 May 2065.[4][5] It has an absolute magnitude (H) of 20.68.[2] It is estimated to be 190 to 250 meters in diameter.[1][3] It was removed from the Sentry Risk Table on 1 July 2006.[6]

H < 21 asteroids passing less than 1 LD from Earth

Asteroid	Date	Nominal approach distance (LD)	Min. distance (LD)	Max. distance (LD)	Absolute magnitude (H)	Size (meters)
(152680) 1998 KJ9	1914-12-31	0.606	0.604	0.608	19.4	279–900
(458732) 2011 MD5	1918-09-17	0.911	0.909	0.913	17.9	556–1795
(163132) 2002 CU11	1925-08-30	0.903	0.901	0.905	18.5	443–477
2017 VW13	2001-11-08	0.454	0.318	3.436	20.7	153–494
(153814) 2001 WN5	2028-06-26	0.647	0.647	0.647	18.2	921–943
99942 Apophis	2029-04-13	0.0981	0.0963	0.1000	19.7	310–340
2005 WY55	2065-05-28	0.865	0.856	0.874	20.7	153–494
101955 Bennu	2135-09-25	0.780	0.308	1.406	20.19	472–512
(153201) 2000 WO107	2140-12-01	0.634	0.631	0.637	19.3	427–593

2005 WY₅₅

Discovery[1]
Discovery date	26 November 2005
Designations
MPC designation	2005 WY55
Minor planet category	Apollo NEO, PHA
Orbital characteristics[2][3]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 0
Observation arc	1451 days (3.97 yr)
Aphelion	4.2823 AU (640.62 Gm) (Q)
Perihelion	0.69532 AU (104.018 Gm) (q)
Semi-major axis	2.4888 AU (372.32 Gm) (a)
Eccentricity	0.72062 (e)
Orbital period	3.93 yr (1434.1 d)
Mean anomaly	188.701° (M)
Mean motion	0° 15^m 3.708^s /day (n)
Inclination	7.27198° (i)
Longitude of ascending node	248.22° (Ω)
Argument of perihelion	286.15° (ω)
Earth MOID	0.00387045 AU (579,011 km)
Jupiter MOID	0.953735 AU (142.6767 Gm)
Physical characteristics
Dimensions	190-250 meters[1][3]
Absolute magnitude (H)	20.7[2]

References

1. "CRT 2005 Object Archive". Retrieved 20 October 2020.
2. "JPL Small-Body Database Browser". Jet Propulsion Laboratory. Retrieved 30 March 2016.
3. "Asteroid General Data - 2005 WY55". Retrieved 13 November 2011.
4. "Sormano Astronomical Observatory: Table of Asteroids Next Closest Approaches to the Earth". Retrieved 13 November 2011.
5. "Near Earth Asteroids (NEAs)". 10 November 2011. Retrieved 13 November 2011.
6. "Date/Time Removed". NASA/JPL Near-Earth Object Program Office. Retrieved 19 March 2012.

External links

• 2005 WY55 at NeoDyS-2, Near Earth Objects—Dynamic Site
  • Ephemeris · Obs prediction · Orbital info · MOID · Proper elements · Obs info · Close · Physical info · NEOCC
• 2005 WY55 at ESA–space situational awareness
  • Ephemerides · Observations · Orbit · Physical Properties · Summary
• 2005 WY55 at the JPL Small-Body Database
  • Close approach · Discovery · Ephemeris · Orbit diagram · Orbital elements · Physical parameters