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
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 (sidereal)	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 0.001 AU (150,000 km; 93,000 mi) of Earth on 19 October 2129.^[2] For comparison, the distance to the Moon is about 0.0026 AU (384,400 km).