662:
471:
in 2020 were about 1400 times less than the background hazard level of Earth impacts, which is defined as the average risk posed by objects of the same size or larger over the years until the date of the potential impact.
425:
of 1.4 days during 13–15 January 2010. On 14 January 2010 the asteroid is estimated to have been 1.8 AU (270,000,000 km; 170,000,000 mi) from Earth with an uncertainty in the asteroids distance of
1683:
412:
on 14 June 2014 as a result of an update to the Sentry software. Another software update restored it to the Sentry Risk Table in 2017. It was again removed from the sentry list on 3 October 2018.
1398:
1668:
1688:
1179:
1194:
902:
1013:
452:
of 9. Virtual clones of the asteroid that fit the uncertainty region in the known trajectory, showed a 1 in 770 million chance that the asteroid could
1214:
1391:
1305:
1300:
1026:
777:
1365:
1234:
1189:
1018:
1254:
405:
316:
92:
42:
1384:
1515:
1360:
1078:
37:
895:
387:
280:
1447:
183:
636:
1606:
587:
1678:
1275:
1199:
975:
849:
609:
550:
1673:
1432:
1596:
1586:
1244:
1219:
888:
409:
404:
of only 1.4 days and thus a poorly determined orbit. It was announced on 27 May 2010 based on images taken by the
1591:
1295:
1285:
1120:
991:
911:
546:
46:
1427:
1239:
1057:
807:
1663:
1611:
1495:
1407:
996:
827:
815:
799:
500:
461:
449:
331:
165:
145:
740:
708:
700:
1532:
1355:
935:
476:
lists the nominal 20 October 2020 Earth distance as 3 AU (450,000,000 km; 280,000,000 mi).
764:
756:
748:
732:
724:
716:
691:
1437:
1159:
791:
783:
298:
127:
771:
1505:
1280:
1143:
1073:
201:
1184:
1150:
1063:
583:
394:
257:
448:
was the largest object listed on the Sentry Risk Table. It has a poorly constrained orbit with an
359:
857:
1490:
1442:
1170:
1050:
1006:
970:
950:
156:
119:
102:
1616:
945:
112:
841:
833:
1537:
1480:
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1321:
1270:
1001:
873:
542:
422:
401:
135:
822:
496:
1552:
1520:
1485:
1114:
1068:
271:
264:
218:
865:
1657:
1576:
1475:
1470:
1339:
1087:
955:
441:
WISE estimates the asteroid to be 1,900 meters (6,200 ft) in diameter. In 2018,
391:
97:
1642:
1415:
1326:
1209:
1126:
1031:
940:
453:
239:
83:
538:
1632:
1581:
1542:
640:
1601:
1547:
1290:
1249:
1229:
1224:
1132:
612:. NASA/JPL Near-Earth Object Program Office. 25 December 2016. Archived from
1637:
1527:
1376:
1331:
1106:
1100:
965:
960:
613:
639:. NASA/JPL Near-Earth Object Program Office. 31 August 2005. Archived from
1457:
1093:
925:
397:
1137:
435:
1204:
930:
666:
473:
880:
1568:
457:
431:
341:
230:
1380:
884:
408:(WISE) on 13–15 January 2010. It was removed from the
1684:
Near-Earth objects removed from the Sentry Risk Table
1625:
1567:
1504:
1456:
1414:
1348:
1314:
1263:
1169:
1042:
984:
918:
669:(Near Earth Objects – Dynamic Site)
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278:
256:
237:
216:
200:
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164:
144:
134:
111:
81:
66:
61:
53:
36:
31:
430:. The asteroid's orbit might not get closer than
539:"JPL Small-Body Database Browser: (2010 AU118)"
491:
489:
1392:
896:
586:. NASA/JPL Near-Earth Object Program Office.
8:
21:
663:"2010AU118 Ephemerides for 20 October 2020"
637:"The Palermo Technical Impact Hazard Scale"
1420:
1399:
1385:
1377:
903:
889:
881:
1669:Minor planet object articles (unnumbered)
696:NeoDyS-2, Near Earth Objects—Dynamic Site
578:
576:
574:
572:
570:
568:
533:
531:
529:
527:
525:
523:
521:
519:
421:was observed 19 times over a very short
1689:Astronomical objects discovered in 2010
584:"Earth Impact Risk Summary: 2010 AU118"
485:
20:
1306:Planetary Defense Coordination Office
1301:Space Situational Awareness Programme
553:from the original on 13 December 2012
281:Longitude of ascending node
7:
831:
464:of −3.14, the odds of an impact by
406:Wide-field Infrared Survey Explorer
14:
590:from the original on 3 April 2014
497:"MPEC 2010-K65 : 2010 AU118"
321:0.3 AU (45,000,000 km)
16:Potential Mars-crossing asteroid
541:(last observation: 2010-01-15;
1:
1276:Japan Spaceguard Association
1019:Earth-crossing minor planets
976:Potentially hazardous object
1366:Fiction about impact events
778:space situational awareness
460:on 2020 October 20. With a
299:Argument of perihelion
1705:
84:Minor planet category
1423:
1408:Small Solar System bodies
1296:The Spaceguard Foundation
1014:Asteroid close approaches
992:Asteroid impact avoidance
626:Math: 10 = 1380
547:Jet Propulsion Laboratory
372:
219:Orbital period (sidereal)
126:
118:
1361:Fiction about meteoroids
1240:Sentinel Space Telescope
360:Absolute magnitude
326:Physical characteristics
997:Asteroid laser ablation
828:JPL Small-Body Database
501:IAU Minor Planet Center
462:Palermo Technical Scale
113:Orbital characteristics
1533:Trans-Neptunian object
936:Earth-grazing fireball
709:Observation prediction
450:uncertainty parameter
128:Uncertainty parameter
1506:Distant minor planet
1281:Meteoritical Society
616:on 25 December 2016.
434:and/or reach beyond
1679:Discoveries by WISE
1185:Catalina Sky Survey
874:Physical parameters
808:Physical properties
610:"Date/Time Removed"
54:Discovery date
28:
1674:Lost minor planets
1349:Related categories
741:Observational info
38:Discovered by
1651:
1650:
1563:
1562:
1448:Meanings of names
1374:
1373:
1315:Potential threats
1007:Ion-beam shepherd
971:Near-Earth object
951:Meteor procession
912:Planetary defense
410:Sentry Risk Table
390:) is a potential
376:
375:
1696:
1421:
1401:
1394:
1387:
1378:
946:Meteor air burst
905:
898:
891:
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866:Orbital elements
749:Close approaches
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643:on 21 March 2002
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1271:B612 Foundation
1259:
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1038:
1002:Gravity tractor
980:
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765:Orbit animation
733:Proper elements
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428:±300 million km
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423:observation arc
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402:observation arc
388:2010 AU118
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184:Semi-major axis
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136:Observation arc
122:15 January 2010
107:
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26:
22:
17:
12:
11:
5:
1702:
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1664:Amor asteroids
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1640:
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1607:Near-parabolic
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1579:
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1553:Scattered disc
1550:
1545:
1540:
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1525:
1524:
1523:
1521:Neptune trojan
1518:
1510:
1508:
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1496:Spectral types
1493:
1488:
1486:Jupiter trojan
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1118:
1115:NEAR Shoemaker
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1023:Damage scales
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834:Close approach
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686:External links
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628:
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386:(also written
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1507:
1503:
1497:
1494:
1492:
1489:
1487:
1484:
1482:
1479:
1477:
1476:Asteroid belt
1474:
1472:
1471:Aten asteroid
1469:
1467:
1464:
1463:
1461:
1459:
1455:
1449:
1446:
1444:
1441:
1439:
1436:
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1426:
1425:
1422:
1419:
1417:
1416:Minor planets
1413:
1409:
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1397:
1395:
1390:
1388:
1383:
1382:
1379:
1367:
1364:
1362:
1359:
1357:
1356:Impact events
1354:
1353:
1351:
1347:
1341:
1340:99942 Apophis
1338:
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1325:
1323:
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1274:
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1264:Organizations
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1246:
1243:
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1220:OGS Telescope
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1103:
1102:
1098:
1096:
1095:
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1088:Halley Armada
1086:
1082:
1081:
1077:
1075:
1072:
1071:
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1065:
1062:
1060:
1059:
1055:
1053:
1052:
1048:
1047:
1045:
1041:
1033:
1030:
1028:
1027:Palermo scale
1025:
1024:
1022:
1020:
1017:
1015:
1012:
1008:
1005:
1003:
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998:
995:
994:
993:
990:
989:
987:
983:
977:
974:
972:
969:
967:
964:
962:
959:
957:
956:Meteor shower
954:
952:
949:
947:
944:
942:
939:
937:
934:
932:
929:
927:
924:
923:
921:
917:
913:
906:
901:
899:
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883:
875:
871:
867:
863:
859:
858:Orbit diagram
855:
851:
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843:
839:
835:
832:
830:
829:
824:
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813:
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805:
801:
797:
793:
789:
785:
782:
781:
780:
779:
773:
770:
766:
762:
758:
757:Physical info
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746:
742:
738:
734:
730:
726:
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714:
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706:
702:
699:
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615:
611:
605:
602:
589:
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579:
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552:
548:
544:
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530:
528:
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524:
522:
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516:
503:. 27 May 2010
502:
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117:
114:
110:
104:
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94:
93:Mars-crossing
91:
90:
88:
85:
80:
71:
65:
60:
56:
52:
48:
44:
41:
39:
35:
30:
19:
1643:Space debris
1327:101955 Bennu
1210:NEO Surveyor
1158:
1149:
1142:
1127:New Horizons
1125:
1113:
1099:
1092:
1079:
1056:
1049:
1043:Space probes
1032:Torino scale
941:Impact event
869:
861:
853:
845:
837:
826:
811:
803:
795:
792:Observations
787:
775:
760:
752:
744:
736:
728:
720:
717:Orbital info
712:
704:
695:
671:. Retrieved
657:
645:. Retrieved
641:the original
631:
622:
614:the original
604:
592:. Retrieved
555:. Retrieved
505:. Retrieved
466:2010 AU
443:2010 AU
440:
416:2010 AU
414:
380:2010 AU
378:
377:
361:
240:Mean anomaly
202:Eccentricity
62:Designations
18:
1633:Cosmic dust
1597:Long-period
1587:Halley-type
1543:Kuiper belt
1428:Designation
1058:Deep Impact
919:Main topics
784:Ephemerides
701:Ephemerides
545:: 2 days).
315:Earth
258:Inclination
194:3.9 AU
175:0.5 AU
68:Designation
57:27 May 2010
1658:Categories
1638:Meteoroids
1617:Sungrazing
1592:Hyperbolic
1548:Oort cloud
1491:Near-Earth
1291:Spaceguard
1250:Spacewatch
1230:Pan-STARRS
1225:Orbit@home
1133:OSIRIS-REx
823:2010 AU118
772:2010 AU118
692:2010 AU118
673:23 January
647:14 October
480:References
395:near-Earth
351:10 kg
332:Dimensions
166:Perihelion
1528:Damocloid
1286:NEOShield
1121:NEA Scout
1101:Hayabusa2
966:Meteoroid
961:Meteorite
850:Ephemeris
842:Discovery
513:(K10AB8U)
353:(assumed)
155:5.6
32:Discovery
1612:Periodic
1538:Detached
1458:Asteroid
1173:tracking
1160:Stardust
1094:Hayabusa
926:Asteroid
588:Archived
557:17 March
551:Archived
507:17 March
400:with an
398:asteroid
146:Aphelion
140:1.4 days
1577:Extinct
1516:Centaur
1332:2010 RF
1322:1950 DA
1215:NEOSSat
1144:Rosetta
1138:PROCYON
985:Defense
825:at the
816:Summary
594:27 June
436:Jupiter
336:~1.9 km
229:9
73:2010 AU
23:2010 AU
1569:Comets
1481:Family
1466:Active
1433:Groups
1245:Sentry
1205:NEODyS
1195:LONEOS
1190:LINEAR
1151:Philae
1107:MASCOT
1064:HAMMER
931:Bolide
870:·
868:
862:·
860:
854:·
852:
846:·
844:
838:·
836:
812:·
810:
804:·
802:
796:·
794:
788:·
786:
761:·
759:
753:·
751:
745:·
743:
737:·
735:
729:·
727:
721:·
719:
713:·
711:
705:·
703:
667:NEODyS
474:NEODyS
454:impact
1626:Other
1582:Great
1180:ATLAS
872:
864:
856:
848:
840:
814:
806:
800:Orbit
798:
790:
763:
755:
747:
739:
731:
723:
715:
707:
458:Earth
120:Epoch
1602:Lost
1443:Moon
1438:List
1255:WISE
1235:SCAP
1200:NEAT
1080:DART
1074:Hera
1069:AIDA
1051:Dawn
776:ESA–
725:MOID
675:2018
649:2011
596:2014
559:2012
509:2012
456:the
432:Mars
392:Amor
368:16.2
342:Mass
317:MOID
263:42.7
250:173°
98:Amor
43:WISE
1171:NEO
774:at
694:at
543:arc
468:118
445:118
418:118
382:118
362:(H)
347:9.7
309:79°
305:11°
291:33°
287:46°
270:4.8
252:(M)
246:50°
225:3.6
211:0.7
207:0.4
196:(a)
190:2.3
177:(q)
171:1.3
160:(Q)
151:3.3
103:NEO
75:118
47:C51
25:118
1660::
1334:12
665:.
567:^
549:.
518:^
499:.
488:^
438:.
231:yr
157:AU
1400:e
1393:t
1386:v
904:e
897:t
890:v
677:.
651:.
598:.
561:.
511:.
349:×
307:±
289:±
272:°
268:±
265:°
248:±
227:±
209:±
192:±
173:±
153:±
130:9
49:)
45:(
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