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OAS > TECA - Table of Asteroids Next Closest Approaches to the Earth

Sormano Astronomical Observatory: Table of Asteroids Next Closest Approaches to the Earth

Last update: May 20, 2013

Computations: Piero Sicoli, Francesco Manca (sormano@tin.it).

This table reports asteroids with nominal Earth-miss distance within about 1.5 millions km (sorted by date) for the coming years.

All data have been extrapolated from our technical lists MBPL - Minor Body Priority List and the SAEL - Small Asteroids Encounters List where MBPL include PHAs ( Potential Hazardous Asteroids )objects with a diameter more than 240 mt, SAEL include small objects with a diameter less than 240 mt, considered dangerous if in reference to local area (see these pages for more details).

Some objects are listed in the risk page at JPL (NASA) and NeoDys (Univ. Of Pisa, Italy) about possible impacts with our planet (see NeoDys Risk page and SENTRY Risk page). Torino and Palermo Impact Hazard Scale are also reported.

All the distances are computed between the centers of mass of the bodies (Earth and asteroids), Take into account the Earth Radius in order to refer distances from the Earth's surface.

INTERESTING PAST CLOSE ENCOUNTERS
are also reported

Predicted close encounters with the Earth
( geocentric distance )

Box Colours Range of distance
< 10 Equatorial Earth Radius
< 100 Equatorial Earth Radius
- > 100 Equatorial Earth Radius

All data have been extrapolated from our technical lists
MBPL - Minor Body Priority List (diameter => 240 mt)
SAEL - Small Asteroids Encounters List (diameter < 240 mt)

(please check these technical pages for more details as MOID and close approaches).

MONITOR on SPECIAL OBJECTS
Asteroids with interesting future close encounters with the Earth
2013 GM3
(diagrams of the close encounter computation and orbital path are here available)
This small asteroid of about 25 mt in diameter, discovered on April 03, 2013 at G96 Mt. Lemmon Survey
by J. A. Johnson, will have an interesting close encounter with the Earth in 2026. Our computations
reveal a still quite large uncertainty so that more observations are desirable to improve the
orbital elements. Actually we estimate an Earth close approach on April 14, 2026at a nominal
distance of 68420 Km and a possible minimum transit at about 8600 Km above Earth's surface.
(153814) 2001 WN5
Discovered on November 20, 2001 at LONEOS (Lowell Observatory - Flagstaff Az)
(see our internal gallery web page ), according with our computations,
will have a close encounter with the Earth on June 26, 2028 between 238962 and 247938 Km
from the Earth's surface and closest than the Earth-Moon distance.
(99942) Apophis
(diagrams of the close encounter computation and orbital path are here available)
This large asteroid of about 325 mt in diameter discovered on June 19, 2004 from Kitt Peak Observatory
(see also our internal web page for more details ), according with our computations,
will have a close encounter with the Earth on April 13, 2029 at about 31769 Km from the Earth's surface.
As 2012 DA14 it will pass at a distance close then the orbit of geostationary satellites but using the last
recent observations has been effectively ruled out the possibility of an impact in 2036.
Object
_ 		Range
of size (mt) 		Date
yyyy-mm-dd 		Nominal
Distance (km) 		Min possible
distance (Km) 		Max possible
distance (Km) 		Torino
Scale 		Palermo
Scale
2013 KT1 9-30 2013-05-21.6 1224907 1223560 1226552 no entry no entry
2013 KB 5-15 2013-05-22.2 1214435 1166863 1226702 no entry no entry
2001 AV43 27-63 2013-11-18 1117346 1019808 1209947 0 -7.55
2004 BL86 420-940 2015-01-26 1199176 59839 5804397 no entry no entry
2012 TC4 8-12 2017-10-12 243844 14959 574455 no entry no entry
2010 XC15 100-320 2022-12-27 771775 767137 776562 no entry no entry
1998 HH49 130-300 2023-10-17 1172864 1135464 1211760 no entry no entry
2006 WB 75-165 2024-11-26 891005 889210 892800 no entry no entry
2012 PB20 19-60 2025-02-09 1331421 792868 1899892 no entry no entry
2013 GM3 9-30 2026-04-14 74798 14959 1481018 0 -5.09
(137108) 1999 AN10 736-1600 2027-08-07 388960 385968 391952 no entry no entry
2008 ST7 30-95 2027-09-09 534064 ** ** 0 -5.13
(153814) 2001 WN5 558-1260 2028-06-26 249828 245340 254316 no entry no entry
(35396) 1997 XF11 1000-3000 2028-10-26 930349 929002 931695 no entry no entry
2006 SU49 330-740 2029-01-28 1237922 1170902 1298060 no entry no entry
(99942) Apophis 325 +/-15 2029-04-13 38147 37848 39194 0 -3.33
2001 AV43 27-63 2029-11-23 1525898 239356 10247453 0 -5.03
2011 AH5 12-37 2031-07-20 1482814 1456634 1509143 no entry no entry
2003 RU11 20-50 2034-09-17 1455587 1421030 1492388 no entry no entry
2002 NY40 348-780 2038-02-11 1084600 1066648 1102552 no entry no entry
2011 AG5 75-240 2040-02-04 1053169 662718 1445115 no entry no entry
2012 UE34 42-140 2041-04-08 104718 29919 373994 0 -6.37
2008 QS11 260-590 2041-10-04 1391260 1331421 1451099 no entry no entry
2004 MD6 210-470 2042-06-16 1454092 1443620 1467556 no entry no entry
2004 RQ252 70-210 2043-04-16 524340 516411 532269 no entry no entry
2011 TO 10-35 2044-09-27 458218 187146 730486 no entry no entry
2000 LF3 126-288 2046-06-13 1047200 897600 4936800 no entry no entry
2012 HG2 7-24 2047-02-13 85270 49367 122670 0 -4.38
(162162) 1999 DB7 220-494 2048-02-28 976126 974106 978145 no entry no entry
2003 DW10 16-36 2050-03-02 299195 ** ** 0 -7.10
2011 SE97 29-66 2051-10-19 957426 837748 1017265 no entry no entry
2004 FU4 530-1200 2051-10-25 1211743 1202766 1217726 no entry no entry
2002 PN 29-66 2052-01-30 1331421 1166863 1481018 no entry no entry
2006 BC10 330-740 2052-03-18 1032215 777901 9469452 no entry no entry
2009 WV25 40-95 2052-04-18 957426 852708 1047185 no entry no entry
2012 MY2 9-30 2053-08-17 1326933 1317957 1329925 no entry no entry
1988 TA 186-410 2053-09-30 853156 851062 855400 no entry no entry
2011 AX22 22-70 2055-05-13 492176 311163 679174 no entry no entry
2009 WM1 210-470 2059-11-23 673190 104718 1256621 no entry no entry
(4660) Nereus 614-1380 2060-02-14 1198296 1197698 1198894 no entry no entry
(101955) 1999 RQ36 178-390 2060-09-22 718080 658240 777920 no entry no entry
2000 WC1 95-210 2061-11-13 879635 869163 888611 no entry no entry
2010 XC15 100-320 2064-12-26 1361340 508632 2513244 no entry no entry
2005 WY55 200-410 2065-05-28 332107 326123 338091 no entry no entry
2003 YN107 12-27 2065-12-13 1421180 ** ** no entry no entry
2011 SR5 180-420 2066-09-23 514616 372498 718069 0 -5.70
2002 SZ 210-470 2067-09-10 1452595 1445115 1460075 no entry no entry
2005 EU2 65-150 2068-03-29 926011 915540 937979 no entry no entry
2000 SG344 31-69 2069-05-02 1196800 299200 23936000 0 -3.43
(2340) Hathor 384-860 2069-10-21 984368 982872 985864 no entry no entry
2004 FH 19-45 2070-01-11 373994 239356 3365952 no entry no entry
(163348) 2002 NN4 260-590 2070-06-06 1516922 1495978 1539362 no entry no entry
(154276) 2002 SY50 1000-2000 2071-10-30 1301950 1107024 1974692 no entry no entry
2011 SM68 330-740 2072-10-17 649254 646262 1926820 no entry no entry
2010 HQ80 260-590 2073-04-27 1241662 1211742 1271581 no entry no entry
2002 TZ66 18-40 2074-10-05 1510938 1301501 1735335 no entry no entry
(308635) 2005 YU55 70-220 2075-11-08 718069 643270 1166785 no entry no entry
2012 MY2 9-30 2076-07-04 647758 581935 1192295 no entry no entry
2002 LV 1000-3000 2076-08-04 1570777 1451099 1705416 no entry no entry
(162173) 1999 JU3 316-710 2076-12-06 1561816 1557463 1565990 no entry no entry
2011 WL2 160-350 2077-10-25 987345 628311 1361340 0 -4.91
(163132) 2002 CU11 508-940 2080-08-31 635790 628311 643271 no entry no entry
2003 SR84 25-60 2081-09-28 911051 703109 4241698 no entry no entry
2010 MU112 130-400 2082-12-13 1030729 978370 1086080 no entry no entry
2006 JF42 420-940 2083-05-03 1389465 1339349 1440328 no entry no entry
2005 ED318 194-430 2083-06-02 1320968 1313488 1329944 no entry no entry
2001 BF10 81-182 2085-04-28 1458579 1316461 1585737 no entry no entry
(2340) Hathor 384-860 2086-10-21 861696 837760 911064 no entry no entry
(171576) 1999 VP11 530-1200 2086-10-22 1107024 1062144 1166863 no entry no entry
2004 XL35 330-740 2086-12-06 1107010 1032212 9783578 no entry no entry
2009 QK130 210-470 2089-03-15 1376300 1189303 1561802 no entry no entry
2002 AW 210-470 2093-10-05 1421179 1092064 1765254 no entry no entry
(153201) 2000 WO107 330-740 2093-11-30 1288037 1213238 1361134 no entry no entry
1998 SC15 348-780 2095-04-09 1268590 1262606 1274574 no entry no entry
1996 RG3 370-1200 2096-02-29 930499 924514 937978 no entry no entry
2005 UO 100-230 2096-10-12 489185 465249 513121 no entry no entry
2004 XM29 65-150 2099-01-02 894894 825481 965504 no entry no entry
2001 GQ2 250-566 2100-04-27 508632 506837 511625 no entry no entry
2007 YV56 170-370 2101-01-02 246836 228884 291715 no entry no entry
2002 GR 59-138 2102-03-22 1481040 ** ** no entry no entry
(54509) 2000 PH5 77-174 2104-01-02 787362 787335 787389 no entry no entry
(162416) 2000 EH26 138-314 2106-04-21 1388269 1380789 1394253 no entry no entry
1999 MN 130-300 2110-06-04 1018313 1017715 1018911 no entry no entry
(152685) 1998 MZ 366-820 2116-11-26 429645 390450 803340 no entry no entry
2001 AV43 27-63 2117-11-23 1300005 ** ** 0 -5.03
2005 GC120 300-720 2122-11-30 821292 736021 908059 no entry no entry
(163348) 2002 NN4 260-590 2130-06-07 1062144 917034 1234182 no entry no entry
2012 DA14 40 2130-02-16 942466 463753 1451099 no entry no entry
2001 AD2 288-650 2133-04-05 1304493 1124975 1539362 no entry no entry
2002 VX91 38-87 2133-11-02 1331421 ** ** no entry no entry
1999 MN 130-300 2137-06-04 823387 822639 824135 no entry no entry
(153201) 2000 WO107 330-740 2140-12-01 273764 255812 291715 no entry no entry
2003 RM10 230-518 2141-09-04 1219222 1214585 1223860 no entry no entry
1999 FA 210-470 2143-03-07 1136960 807840 1899920 no entry no entry
(163132) 2002 CU11 508-940 2143-09-02 1077120 ** ** no entry no entry
2002 PN 29-66 2146-01-29 296203 ** ** no entry no entry
2009 DO111 65-15 2146-03-23 287228 285732 300692 no entry no entry
(85604) 1998 OX4 170-370 2148-01-22 296196 295937 296455 no entry no entry
1998 KM3 302-680 2149-12-07 1346380 1344884 1361340 no entry no entry
1997 GL3 360-880 2153-09-21 782397 777909 785389 no entry no entry
2000 UK11 22-54 2153-11-04 792880 ** ** no entry no entry
2011 LT17 85-280 2155-06-16 671694 647758 697126 no entry no entry
2011 LT17 85-280 2156-12-16 382970 366514 649254 no entry no entry
2006 JF42 420-940 2159-05-04 1075309 1069026 1081742 no entry no entry
2002 FD6 95-210 2161-04-08 1320949 1332917 1311973 no entry no entry
1998 SD9 40-95 2163-09-01 1328579 1324091 1333067 no entry no entry
(162474) 2000 LB16 420-940 2163-12-14 1585760 1470568 1736856 no entry no entry
(4660) Nereus 614-1380 2166-02-11 942480 807840 7076080 no entry no entry
2002 AJ129 530-1200 2172-02-08 686654 679174 697126 no entry no entry
1998 SD9 40-95 2173-09-01 1315713 1300753 1330823 no entry no entry
2002 AJ129 530-1200 2180-02-08 1346380 ** ** no entry no entry
2001 FR85 29-51 2185-03-19 1196800 ** ** no entry no entry
1998 KY26 27-33 2185-06-09 1496000 ** ** no entry no entry
2005 UO 100-230 2188-10-13 1247646 819796 1720375 no entry no entry
2001 BA16 17-37 2191-01-16 1196800 ** ** 0 -5.80
2004 SC56 65-150 2192-10-09 1282203 1241213 1324390 no entry no entry
2002 DU3 130-400 2193-03-21 628311 508632 852707 no entry no entry
2006 VQ13 190-590 2194-11-16 887414 885619 887863 no entry no entry
(164121) 2003 YT1 1000-3000 2195-04-30 575952 575952 11118871 no entry no entry
1997 XR2 200-450 2202-06-04 1395748 1341893 1448107 no entry no entry
(2135) Aristaeus 670-1500 2240-04-02 1196782 224396 7046059 no entry no entry
(7753) 1998 XB 508-1148 2311-12-04 404301 401242 407504 no entry no entry

Interesting Past Close Encounter with the Earth ( geocentric distance )
2008 TC3
For this small object the atmospheric impact has been confirmed with fragments found in Sudan
For more details see JPL News
2011 MD
An animation is available by Pasquale Tricarico Planetary Science Inst.
2012 DA14
Soon after the discovery we alerted the international community about a possible very
close approach of this asteroid on February 15, 2013 (see the message at Minor Planet Mailing List ).
Our last computations on the basis of the last observations available, indicate that 2012 DA14
(an estimated rock of about 50 meters) has passed closest to our planet on February 15, 2013 at 19.40 GMT
at 27675 Km. above Earth's surface, a distance closest then the orbit of geostationary satellites at 36000 Km.
The next close approach will be on February 16, 2130 at the nominal geocentric distance of about 942466 Km,
see above the current list for the uncertainty error.

Object
_ 		Range
of size (mt) 		Date
yyyy-mm-dd 		Nominal
Distance (km) 		Min possible
distance (Km) 		Max possible
distance (Km) 		Torino
Scale 		Palermo
Scale
2008 TC3
2-5 2008-10-07.1 5852 5847 5856 no entry no entry
2011 MD 7-15 2011-06-27 18644 18612 18676 0 -4.78
(308635)2005 YU55 70-220 2011-11-08 324755 325076 325054 no entry no entry
2012 BX34 8-19 2012-01-27 65374 64775 65823 no entry no entry
2012 TC4 8-12 2012-10-12 94946 94871 95009 no entry no entry
2012 XE54 12-50 2012-12-11 226042 225593 227687 no entry no entry
2012 DA14 28-80 2013-02-15 34052 34049 34054 0 -7.50
2013 EC20 4-12 2013-03-09 150045 149637 150345 no entry no entry

Astronomical Unit (average distance between Earth and Sun)= 149597871 km

The average distance between Earth and Moon = 384400 km

Equatorial Earth Radius= 6378.14 Km

Table Headings:

Object:
definitive number and name or provisional designation.
Range of size:
Probable size of the object from its absolute magnitude (H). For more information on this matter see the related page at the Minor Planet Center. A small range reported in italic suggests that the size has been deduced directly from radar observations.
Date:
Year, month, day of the close approach to the Earth.
Nominal distance:
Miss (geocentric) distance as resulting from nominal orbital elements.
Min and Max distance:
minimum and maximum miss possible distance based on the 3-sigma uncertainty confidence level. A simbol '**' means not computed, usually owing to a very high uncertainty.
The Palermo technical Scale:
Palermo Scale values between -2 and 0 indicate situations that merit careful monitoring. For more explanation see the related web page The Palermo technical Impact Hazard Scale
Torino Scale:
The Torino Impact Hazard Scale is designed to communicate to the public the risk associated with a future Earth approach by an asteroid or comet (see image below)

Torino Scale

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Web Curators: M. Carpino, F. Manca
Last modified: May 20, 2013