Near Earth Object Fact Sheet
![[Toutatis]](http://nssdc.gsfc.nasa.gov/planetary/image/toutatis_radar.gif)
Information on Selected Near Earth Objects
This list shows selected near Earth objects (NEO's) with close approaches to Earth in the past and predicted to the year 2100, as well as other NEO's of interest. The probability of any of these objects hitting the Earth on these approaches is essentially zero. There are no known NEO's on a collision course with the Earth. There is a possibility that an as yet undiscovered large NEO may hit the Earth, but the probability of this happening over the next 100 years is extremely small. For comparison with the closest approach data, the distance from the Earth to the Moon is about 0.0026 AU (1 AU = 149.6 million km).
Closest Closest H Approx. Orbital Semimajor Orbital
Asteroid Approach Approach Abs. Diameter Period Axis Orbital Inclination Number
Number and Name Date (AU) Mag. (meters) (yrs) (AU) Eccentricity (deg) and Name
--------------- ----------- -------- ---- ---------- ------- --------- ------------ ----------- -------------
1937 UB 1937 Oct 30 0.0049 17.1 1250 2.29 1.738 0.649 6.4 1937 UB
1989 UP 1938 Nov 18 0.0052 20.6 330 2.55 1.864 0.473 3.9 1989 UP
2004 UH1 1960 Oct 24 0.0011 28.2 10 0.93 0.954 0.397 3.7 2004 UH1
1999 VP11 1965 Oct 21 0.0022 18.6 820 1.13 1.084 0.584 17.3 1999 VP11
2000 LG6 1971 Jun 3 0.0041 29.0 7 0.88 0.916 0.112 2.8 2000 LG6
2001 AV43 1973 Dec 24 0.0041 24.3 60 1.44 1.277 0.238 0.3 2001 AV43
27002 1998 DV9 1975 Jan 31 0.0045 18.1 1040 2.31 1.745 0.434 8.7 27002 1998 DV9
4581 Asclepius 1989 Mar 22 0.0046 20.5 340 1.03 1.022 0.357 4.9 4581 Asclepius
2003 SW130 1990 Sep 19 0.0015 29.1 7 0.83 0.885 0.304 3.6 2003 SW130
1991 BA 1991 Jan 18 0.0011 28.7 8 3.06 2.105 0.667 2.1 1991 BA
1991 VG 1991 Dec 05 0.0031 28.4 9 1.04 1.027 0.049 1.4 1991 VG
1993 KA2 1993 May 20 0.0010 29.0 7 3.33 2.229 0.770 3.2 1993 KA2
1994 ES1 1994 Mar 15 0.0011 28.6 9 1.68 1.411 0.588 0.9 1994 ES1
1994 XM1 1994 Dec 09 0.00070 28.2 10 2.98 2.068 0.568 4.6 1994 XM1
1995 FF 1995 Mar 27 0.0029 26.4 22 3.54 2.323 0.707 0.6 1995 FF
1996 JA1 1996 May 19 0.0030 21.0 270 4.11 2.565 0.701 22.0 1996 JA1
2000 SG344 1999 May 06 0.0038 24.6 * 0.97 0.980 0.067 0.1 2000 SG344
6489 Golevka 1999 Jun 2 0.0500 19.2 620 3.99 2.514 0.597 2.3 6489 Golevka
2000 LG6 2000 Jun 02 0.0033 29.0 7 0.88 0.916 0.112 2.8 2000 LG6
4486 Mithra 2000 Aug 14 0.0465 15.4 3000 3.26 2.200 0.663 3.0 4486 Mithra
2001 BA16 2001 Jan 15 0.0020 25.8 30 0.91 0.940 0.137 5.8 2001 BA16
1998 WT24 2001 Dec 16 0.0124 17.7 1250 0.61 0.718 0.418 7.4 1998 WT24
4660 Nereus 2002 Jan 22 0.0290 18.3 950 1.82 1.489 0.360 1.4 4660 Nereus
2002 CB26 2002 Feb 08 0.0032 26.5 20 2.73 1.953 0.723 6.8 2002 CB26
2002 EM7 2002 Mar 08 0.0031 24.4 60 0.89 0.921 0.363 1.5 2002 EM7
2002 MN 2002 Jun 14 0.00080 23.3 100 2.44 1.814 0.497 1.0 2002 MN
2002 NY40 2002 Aug 18 0.0035 18.7 780 2.91 2.039 0.710 5.8 2002 NY40
2002 XV90 2002 Dec 11 0.00078 25.2 40 1.99 1.580 0.377 10.0 2002 XV90
1993 KA2 2003 May 20 0.0027 29.0 7 3.33 2.229 0.770 3.2 1993 KA2
1994 PM 2003 Aug 16 0.0250 17.8 1200 1.80 1.479 0.753 18.0 1994 PM
2003 SQ222 2003 Sep 27 0.00056 30.0 4 1.85 1.506 0.519 3.6 2003 SQ222
2003 SW130 2003 Sep 19 0.0011 29.1 7 0.83 0.885 0.304 3.6 2003 SW130
2003 UM3 2003 Oct 12 0.0019 28.0 11 1.61 1.371 0.440 1.5 2003 UM3
2003 XJ7 2003 Dec 6 0.0010 26.3 22 1.39 1.243 0.466 18.2 2003 XJ7
2004 FH 2004 Mar 18 0.00033 26.4 20 0.74 0.818 0.289 0.0 2004 FH
2004 FY15 2004 Mar 27 0.0016 26.1 24 2.52 1.854 0.479 3.5 2004 FY15
2004 FU162 2004 Mar 31 0.00008 28.7 8 0.75 0.827 0.392 4.2 2004 FU162
2004 HE 2004 Apr 18 0.0018 26.8 18 2.36 1.774 0.608 9.5 2004 HE
2004 OD4 2004 Jul 16 0.0011 26.9 17 2.91 2.037 0.515 4.4 2004 OD4
4179 Toutatis 2004 Sep 29 0.0104 15.3 4600 x 2400 1.10 2.511 0.634 0.5 4179 Toutatis
2004 UH1 2004 Oct 24 0.0020 28.2 10 0.93 0.954 0.397 3.7 2004 UH1
2004 YD5 2004 Dec 19 0.0023 29.3 6 3.43 2.273 0.783 3.6 2004 YD5
2005 BS1 2005 Jan 13 0.0018 27.3 15 2.76 1.965 0.567 2.6 2005 BS1
2005 FN 2005 Mar 18 0.00096 26.9 17 0.90 0.934 0.330 3.8 2005 FN
2005 TK50 2005 Oct 10 0.00081 29.1 7 2.66 1.919 0.621 4.9 2005 TK50
2005 UW5 2005 Oct 30 0.0013 27.5 14 1.65 1.398 0.395 2.9 2005 UW5
2005 WN3 2005 Nov 26 0.00056 29.9 4 4.26 2.628 0.740 0.4 2005 WN3
2005 XA8 2005 Dec 5 0.0015 25.6 33 1.70 1.425 0.440 4.8 2005 XA8
2006 BF56 2006 Jan 29 0.0014 29.6 5 3.63 2.363 0.794 1.3 2006 BF56
2004 XP14 2006 Jul 03 0.0029 19.3 595 1.09 1.057 0.157 32.9 2004 XP14
4450 Pan 2008 Feb 19 0.0408 17.2 1570 3.00 1.442 0.587 5.5 4450 Pan
2001 TB 2010 Jan 15 0.0050 24.8 47 2.25 1.716 0.525 4.0 2001 TB
433 Eros 2012 Jan 31 0.1790 11.2 33000 x 13000 1.76 1.458 0.223 10.8 433 Eros
4660 Nereus 2021 Dec 11 0.0263 18.3 950 1.82 1.489 0.360 1.4 4660 Nereus
7482 1994 PC1 2022 Jan 18 0.0132 16.8 1900 1.56 1.346 0.328 33.5 7482 1994 PC1
7335 1989 JA 2022 May 27 0.0269 16.5 2000 2.35 1.770 0.484 15.2 7335 1989 JA
1999 AN10 2027 Aug 7 0.0026 18.0 1100 1.76 1.459 0.562 39.9 1999 AN10
2001 WN5 2028 Jun 26 0.0017 18.2 990 2.24 1.711 0.467 1.9 2001 WN5
2000 SG344 2029 Feb 16 0.0530 24.6 * 0.97 0.980 0.067 0.1 2000 SG344
99942 Apophis 2029 Apr 13 0.00024 19.2 620 0.89 0.922 0.191 3.3 99942 Apophis
1994 VH8 2031 Oct 29 0.0023 27.7 12 2.06 1.616 0.437 3.3 1994 VH8
2005 TA 2034 Oct 04 0.0029 27.2 15 1.45 1.281 0.251 2.8 2005 TA
99942 Apophis 2036 Apr 13 ** 19.2 620 0.89 0.922 0.191 3.3 99942 Apophis
4769 Castalia 2046 Aug 26 0.0251 16.9 1800 x 800 1.10 1.063 0.483 8.9 4769 Castalia
1862 Apollo 2046 Nov 13 0.0353 16.3 1600 1.81 1.471 0.560 6.4 1862 Apollo
4581 Asclepius 2051 Mar 24 0.0122 20.5 340 1.03 1.022 0.357 4.9 4581 Asclepius
1620 Geographos 2051 Aug 23 0.0479 15.6 2000 1.39 1.246 0.335 13.3 1620 Geographos
2004 VZ 2056 Nov 8 0.0041 24.5 54 0.91 0.940 0.244 16.2 2004 VZ
4660 Nereus 2060 Feb 14 0.0080 18.3 940 1.82 1.489 0.360 1.4 4660 Nereus
2000 QX69 2064 Aug 23 0.0025 24.2 63 1.02 1.011 0.271 4.6 2000 QX69
2004 VZ 2066 Nov 8 0.0048 24.5 54 0.91 0.940 0.244 16.2 2004 VZ
2000 SG344 2069 May 2 0.0013 24.6 * 0.97 0.980 0.067 0.1 2000 SG344
2340 Hathor 2069 Oct 21 0.0066 20.3 370 0.78 0.844 0.450 5.8 2340 Hathor
4179 Toutatis 2069 Nov 5 0.0199 15.3 4600 x 2400 3.98 2.511 0.634 0.5 4179 Toutatis
4660 Nereus 2071 Feb 4 0.0157 18.3 940 1.82 1.489 0.360 1.4 4660 Nereus
2005 UW5 2076 Oct 30 0.0031 27.5 14 1.65 1.398 0.395 2.9 2005 UW5
2002 CU11 2080 Aug 31 0.0043 18.3 950 1.35 1.220 0.296 48.8 2002 CU11
1999 SF10 2083 Oct 11 0.0042 24.2 63 1.45 1.278 0.253 1.2 1999 SF10
2340 Hathor 2086 Oct 21 0.0059 20.3 370 0.78 0.844 0.450 5.8 2340 Hathor
2005 VL1 2087 Nov 3 0.0029 26.7 20 0.84 0.891 0.255 0.3 2005 VL1
1566 Icarus 2090 Jun 14 0.0357 16.4 1400 1.12 1.078 0.827 22.9 1566 Icarus
2005 GY8 2092 Sep 23 0.0045 21.2 250 2.90 2.034 0.667 2.8 2005 GY8
2005 YU55 2093 Nov 9 0.0027 22.0 170 1.22 1.141 0.429 0.5 2005 YU55
3200 Phaethon 2093 Dec 14 0.0194 14.6 5000 1.43 1.271 0.890 22.1 3200 Phaethon
2005 AU3 2097 Jan 4 0.0036 26.0 27 1.39 1.247 0.474 3.8 2005 AU3
2000 SG344 2098 May 6 0.0050 24.6 * 0.97 0.980 0.067 0.1 2000 SG344
1036 Ganymed 9.3 32000 4.35 2.665 0.535 26.7 1036 Ganymed
9969 Braille 15.7 1000 x 2200 3.58 2.341 0.434 29.0 9969 Braille
* 2000 SG344 may be an Apollo rocket body in heliocentric orbit
** The orbit of 99942 Apophis will be altered by its close approach to Earth in 2029 and has a chance, estimated at 1 in 6250, of hitting the Earth in 2036.
433 Eros - Near-Earth asteroid studied by the NEAR mission, which went into orbit in February 2000. (2nd largest NEO)
1036 Ganymed - Largest Near-Earth Object, 32 km in diameter.
1566 Icarus - Highly eccentric Earth-crossing orbit.
1620 Geographos - Scheduled to be visited by Clementine before a computer malfunction cut the mission short.
4179 Toutatis - Double object, probably in contact, one 2.5 km and one 1.5 km diameter (estimated), imaged by Arecibo and Goldstone radar.
4769 Castalia - Double-lobed near-Earth asteroid, each lobe about .75 km diameter. Imaged by Arecibo radar.
9969 Braille - Near-Earth asteroid flown by on 28 July 1999 by the New Millenium Deep Space 1 spacecraft.
1998 SF36 - Near-Earth asteroid target of 2005 orbit and 2007 sample return by the Muses-C spacecraft.
Large Terrestrial Impact Craters
~Age ~DiameterCrater information from The New Solar System, Beatty et al., Cambridge, 1999.http://rohitbrt.blogspot.com/
Crater Name Location Latitude Longitude (My) (km)
--------------- ------------- -------- --------- -------- ---------
Vredefort South Africa 27.0 S 27.5 E 2023 300
Sudbury Canada 46.6 N 81.2 W 1850 250
Chicxulub Mexico 21.3 N 89.5 W 65 170
Manicougan Canada 51.4 N 68.7 W 214 100
Popigai Russia 71.7 N 111.7 E 35 100
Chesapeake Bay United States 37.3 N 76.0 W 36 90
Acraman Australia 32.0 S 135.5 E 590 90
Puchezh-Katunki Russia 57.1 N 43.6 E 175 80
Morokweng South Africa 26.5 S 23.5 E 145 70
Kara Russia 69.2 N 65.0 E 73 65
Beaverhead United States 44.6 N 113.0 W 600 60
Tookoonooka Australia 27.1 S 142.8 E 128 55
Charlevoix Canada 47.5 N 70.3 W 357 54
Kara-Kul Tajikstan 39.0 N 73.5 E 5 52
Siljan Sweden 61.0 N 14.9 E 368 52
http://nssdc.gsfc.nasa.gov/planetary/factsheet/neofact.html
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