2007 UW₁

2007 UW₁ is a sub-kilometer asteroid that is a near-Earth object of the Aten group.

H < 23 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
2002 JE9	1971-04-11	0.616	0.587	0.651	21.2	122–393
2013 UG1	1976-10-17	0.854	0.853	0.855	22.3	73–237
2012 TY52	1981-11-04	0.818	0.813	0.823	21.4	111–358
2017 VW13	2001-11-08	0.454	0.318	3.436	20.7	153–494
(308635) 2005 YU55	2011-11-08	0.845	0.845	0.845	21.9	320–400
2018 AH	2018-01-02	0.773	0.772	0.773	22.5	67–216
(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
2015 XJ351	2047-06-06	0.789	0.251	38.135	22.4	70–226
2005 WY55	2065-05-28	0.865	0.856	0.874	20.7	153–494
(308635) 2005 YU55	2075-11-08	0.592	0.499	0.752	21.9	320–400
(456938) 2007 YV56	2101-01-02	0.621	0.615	0.628	21.0	133–431
2007 UW1	2129-10-19	0.239	0.155	0.381	22.7	61–197
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
2009 DO111	2146-03-23	0.896	0.744	1.288	22.8	58–188
(85640) 1998 OX4	2148-01-22	0.771	0.770	0.771	21.1	127–411
2007 UY1	2156-02-13	0.685	0.652	6.856	22.9	56–179
2011 LT17	2156-12-16	0.998	0.955	1.215	21.6	101–327

2007 UW₁

Discovery[1]
Discovered by	Lowell Observatory-LONEOS
Discovery site	Anderson Mesa Station, near Flagstaff, Arizona, USA
Discovery date	October 17, 2007
Designations
MPC designation	2007 UW1
Alternative designations	MPO 279093
Minor planet category	Aten NEO
Orbital characteristics[2]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 1
Observation arc	2239 days (6.13 yr) 6.13 yr
Aphelion	1.01743540 AU (152.206169 Gm)
Perihelion	0.79797845 AU (119.375877 Gm)
Semi-major axis	0.90770693 AU (135.791024 Gm)
Eccentricity	0.1208854
Orbital period	0.86 yr (315.9 d)
Average orbital speed	31.147779 km/s
Mean anomaly	52.355473°
Mean motion	1.1396870°/day
Inclination	8.217508°
Longitude of ascending node	25.974776°
Argument of perihelion	146.57760°
Earth MOID	0.00190894 AU (285,573 km)
Jupiter MOID	3.94531 AU (590.210 Gm)
Physical characteristics
Dimensions	80–180 m[3]
Absolute magnitude (H)	22.7[2]

Orbit

The orbit of 2007 UW₁ has been established with more than a 6-year observation arc. It will pass within 0.00107 AU (160,000 km; 99,000 mi) of Earth on 19 October 2129.[2] For comparison, the distance to the Moon is about 0.0026 AU (384,400 km).

References

1. "2007 UW1". Minor Planet Center. 3 December 2013.
2. "JPL Small-Body Database Browser: 2007 UW1" (last observation: 2013-12-03; arc: 2239 days). Jet Propulsion Laboratory. Retrieved 30 March 2016.
3. "ABSOLUTE MAGNITUDE (H)". NASA.

External links

• 2007 UW1 at the JPL Small-Body Database
  • Close approach · Discovery · Ephemeris · Orbit diagram · Orbital elements · Physical parameters

Preceded by 2007 YV56

Large NEO Earth close approach (inside the orbit of the Moon) 19 October 2129

Succeeded by (153201) 2000 WO107