1137:
31:
617:
564:
574:
carried out radar observations on
January 23 and 24 January 2008. As of then, the orbit of the asteroid was known with such a high precision that scientists were able to calculate close approaches from the year 67 AD to 2141 AD. On 29 January 2008 at 08:33
1997:
1707:
981:
543:
on 11 October 2007, a total of 316 observations of it had been made by 31 January 2008, spanning 112 days. Now the asteroid has an observation arc of about 3 years and the
1977:
1987:
2007:
1982:
1488:
1503:
1211:
571:
1322:
346:
297:
2002:
1523:
1700:
914:
645:, passing Earth by 432,308 km (268,624 mi), 0.00289 AU, or just 1.1 times the Moon's average distance from Earth on 3 July 2006.
1614:
1609:
1335:
1081:
1674:
1543:
1498:
1327:
708:
1563:
287:
276:
1693:
973:
849:
1824:
1669:
963:
799:
497:
has estimated that it is 250 meters (820 ft) in diameter. The asteroid passed 554,209 kilometer (344,370 mile or 1.4-
978:
1387:
52:
1992:
1204:
252:
931:
1756:
642:
506:
173:
1915:
698:
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1284:
97:
1158:
900:
885:
1741:
1905:
1895:
1553:
1528:
1197:
883:
Near-Earth
Asteroid 2007 TU24 to Pass Close to Earth on Jan. 29 - Should be Observable with Modest Sized Telescopes
653:
548:
498:
1972:
1900:
1604:
1594:
1429:
1300:
1220:
857:
795:
703:
610:
1736:
1548:
1366:
87:
1111:
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1804:
1716:
1305:
1131:
685:
371:
304:
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202:
162:
144:
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1103:
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1044:
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1004:
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1468:
264:
126:
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1028:
1020:
995:
1814:
1589:
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184:
911:
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1372:
606:
486:
482:
241:
92:
57:
30:
661:
521:
442:
1166:
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1751:
1479:
1359:
1315:
1279:
1259:
671:
587:
150:
114:
1925:
1254:
599:
391:
107:
1150:
1142:
758:
652:(4.5 km diameter) came within 1.5 million km, 0.0104 AU (within 4
1846:
1789:
1774:
1630:
1579:
1310:
1182:
985:
967:
918:
889:
861:
739:
713:
479:
359:
134:
1126:
960:
787:
1861:
1829:
1794:
1423:
1377:
1136:
682:
616:
563:
222:
195:
1174:
1966:
1885:
1784:
1779:
1648:
1396:
1264:
678:
649:
494:
1951:
1724:
1635:
1518:
1435:
1340:
1249:
935:
215:
78:
520:
was measured to be 400 meters in diameter.) At closest approach 2007 TU24 had an
1941:
1890:
1851:
828:
407:
230:
1910:
1856:
1599:
1558:
1538:
1533:
1441:
989:
544:
118:
620:
Animation of two photos taken from Slooh Teide observatory on 31 January 2008
1946:
1836:
1685:
1640:
1415:
1409:
1274:
1269:
882:
632:
591:
525:
511:
154:
1766:
1402:
1234:
528:
can see. It required about a 3-inch (76 mm) telescope to be seen.
505:. (At the time of the passage it was believed the closest for any known
1446:
490:
333:
1513:
1239:
824:
423:
1189:
827:* maximum likely density of 3 g/cm (though it could be a loose
1877:
615:
562:
853:
791:
595:
378:
314:
1689:
1193:
576:
552:
502:
382:
567:
A series of low-resolution radar images of asteroid 2007 TU24
586:
passed by the earth at a nominal distance of 0.0037043
932:"Binary and Ternary near-Earth Asteroids detected by radar"
788:"NASA Scientists Get First Images of Earth Flyby Asteroid"
1998:
Near-Earth objects removed from the Sentry Risk Table
974:
Huge asteroid to fly by past earth.Independent Online
839:
and an improbable escape velocity of 0.58 km/h.
1934:
1876:
1813:
1765:
1723:
1657:
1623:
1572:
1478:
1351:
1293:
1227:
440:
389:
369:
356:
343:
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313:
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296:
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228:
213:
193:
183:
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161:
143:
133:
106:
76:
71:
63:
51:
46:
934:. NASA/JPL Asteroid Radar Research. Archived from
524:of 10.3 and was about 50 times fainter than the
670:will pass within 388,960 km (0.0026
1701:
1205:
681:will pass the earth within the orbits of the
8:
509:(PHA) of this size before 2027, but in 2010
18:
753:
751:
749:
747:
1729:
1708:
1694:
1686:
1212:
1198:
1190:
1135:
961:Asteroid to Make Rare Close Flyby of Earth
782:
780:
778:
776:
547:is well defined. It was removed from the
29:
1978:Minor planet object articles (unnumbered)
1000:NeoDyS-2, Near Earth Objects—Dynamic Site
740:JPL Small-Body Database Browser: 2007TU24
501:) from Earth on 29 January 2008 at 08:33
1988:Contact binary (small Solar System body)
2008:Astronomical objects discovered in 2007
930:Lance A. M. Benner (18 November 2013).
725:
536:From the date of discovery of asteroid
1983:Discoveries by the Catalina Sky Survey
979:Asteroid 2007 TU24: No Danger to Earth
761:(2010-10-08 last obs (arc=2.99 years))
759:"JPL Close-Approach Data: (2007 TU24)"
735:
733:
731:
729:
281:0.000483062 AU (72,265.0 km)
17:
1615:Planetary Defense Coordination Office
1610:Space Situational Awareness Programme
901:NEOs Removed from Impact Risks Tables
819:
817:
253:Longitude of ascending node
7:
802:from the original on 29 January 2008
656:) of the Earth on 29 September 2004.
609:were taken on 1–4 February. It is a
1140:
598:) with a relative speed of 9.248
14:
860:. 29 January 2008. Archived from
292:2.06887 AU (309.499 Gm)
167:0.95153 AU (142.347 Gm)
2003:Potentially hazardous asteroids
831:) yields an improbable mass of
179:2.0429 AU (305.61 Gm)
643:potentially hazardous asteroid
507:potentially hazardous asteroid
1:
699:List of exceptional asteroids
1585:Japan Spaceguard Association
1328:Earth-crossing minor planets
1285:Potentially hazardous object
551:on 4 December 2007 at 14:05
1675:Fiction about impact events
1082:space situational awareness
970:(Catalina Sky Survey Photo)
709:Asteroid naming conventions
485:that was discovered by the
265:Argument of perihelion
2024:
79:Minor planet category
1732:
1717:Small Solar System bodies
1605:The Spaceguard Foundation
1323:Asteroid close approaches
1301:Asteroid impact avoidance
850:"Asteroid Zooms by Earth"
823:radius of 0.125 km;
704:Asteroid impact avoidance
464:
401:
196:Orbital period (sidereal)
125:
113:
28:
1670:Fiction about meteoroids
1549:Sentinel Space Telescope
686:communication satellites
443:Absolute magnitude
298:Physical characteristics
139:1093 days (2.99 yr)
1306:Asteroid laser ablation
1132:JPL Small-Body Database
984:31 October 2011 at the
611:contact binary asteroid
372:Synodic rotation period
108:Orbital characteristics
1993:Radar-imaged asteroids
1842:Trans-Neptunian object
1245:Earth-grazing fireball
1013:Observation prediction
912:2007 TU24planning.html
625:Other close approaches
621:
568:
532:Impact risk assessment
966:16 March 2012 at the
619:
572:Goldstone Observatory
566:
127:Uncertainty parameter
1815:Distant minor planet
1590:Meteoritical Society
493:on 11 October 2007.
347:surface gravity
1494:Catalina Sky Survey
1183:Physical parameters
1112:Physical properties
798:. 25 January 2008.
607:Arecibo Observatory
487:Catalina Sky Survey
483:near-Earth asteroid
365:< 0.58 km/h
64:Discovery date
58:Catalina Sky Survey
25:
1658:Related categories
1045:Observational info
917:2008-01-20 at the
888:2008-01-24 at the
864:on 2 February 2008
825:volume of a sphere
677:On 13 April 2029,
659:On 7 August 2027,
622:
605:Observations from
569:
522:apparent magnitude
236:0° 20 15.144 / day
53:Discovered by
1960:
1959:
1872:
1871:
1757:Meanings of names
1683:
1682:
1624:Potential threats
1316:Ion-beam shepherd
1280:Near-Earth object
1260:Meteor procession
1221:Planetary defense
549:Sentry Risk Table
468:
467:
436:
435:
117:13 January 2016 (
2015:
1973:Apollo asteroids
1730:
1710:
1703:
1696:
1687:
1255:Meteor air burst
1214:
1207:
1200:
1191:
1175:Orbital elements
1139:
1053:Close approaches
992:25 January 2008)
948:
947:
945:
943:
927:
921:
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784:
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742:
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669:
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662:(137108) 1999 AN
641:was the closest
640:
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585:
542:
519:
517:
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476:
403:
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392:Geometric albedo
326:
324:
121: 2457400.5)
41:
33:
26:
24:
2023:
2022:
2018:
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2016:
2014:
2013:
2012:
1963:
1962:
1961:
1956:
1930:
1868:
1809:
1761:
1719:
1714:
1684:
1679:
1653:
1644:
1619:
1580:B612 Foundation
1568:
1474:
1347:
1311:Gravity tractor
1289:
1223:
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1069:Orbit animation
1037:Proper elements
986:Wayback Machine
968:Wayback Machine
957:
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951:
941:
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929:
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919:Wayback Machine
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890:Wayback Machine
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745:
738:
727:
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714:Radar astronomy
695:
664:
663:
660:
654:lunar distances
635:
634:
631:
627:
594:; 344,340
584:
580:
561:
541:
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394:
374:
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360:escape velocity
349:
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174:Semi-major axis
135:Observation arc
102:
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67:11 October 2007
42:
40:
36:
35:Radar image of
23:
19:
12:
11:
5:
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2019:
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1916:Near-parabolic
1913:
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1888:
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1870:
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1867:
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1865:
1864:
1862:Scattered disc
1859:
1854:
1849:
1839:
1834:
1833:
1832:
1830:Neptune trojan
1827:
1819:
1817:
1811:
1810:
1808:
1807:
1805:Spectral types
1802:
1797:
1795:Jupiter trojan
1792:
1787:
1782:
1777:
1771:
1769:
1763:
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1760:
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1754:
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1449:
1444:
1439:
1432:
1427:
1424:NEAR Shoemaker
1420:
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1418:
1406:
1399:
1394:
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1370:
1363:
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1332:Damage scales
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1225:
1224:
1219:
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1216:
1209:
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1194:
1188:
1187:
1186:
1185:
1143:Close approach
1124:
1123:
1122:
1073:
1072:
1071:
993:
976:
971:
956:
955:External links
953:
950:
949:
938:on 8 June 2004
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683:geosynchronous
675:
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590:(554,160
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557:
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533:
530:
499:lunar distance
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1816:
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1806:
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1801:
1798:
1796:
1793:
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1788:
1786:
1785:Asteroid belt
1783:
1781:
1780:Aten asteroid
1778:
1776:
1773:
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1770:
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1725:Minor planets
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1673:
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1668:
1666:
1665:Impact events
1663:
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1649:99942 Apophis
1647:
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1593:
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1586:
1583:
1581:
1578:
1577:
1575:
1573:Organizations
1571:
1565:
1562:
1560:
1557:
1555:
1552:
1550:
1547:
1545:
1542:
1540:
1537:
1535:
1532:
1530:
1529:OGS Telescope
1527:
1525:
1522:
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1517:
1515:
1512:
1510:
1507:
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1500:
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1428:
1426:
1425:
1421:
1417:
1414:
1413:
1412:
1411:
1407:
1405:
1404:
1400:
1398:
1397:Halley Armada
1395:
1391:
1390:
1386:
1384:
1381:
1380:
1379:
1376:
1374:
1371:
1369:
1368:
1364:
1362:
1361:
1357:
1356:
1354:
1350:
1342:
1339:
1337:
1336:Palermo scale
1334:
1333:
1331:
1329:
1326:
1324:
1321:
1317:
1314:
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1309:
1307:
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1299:
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1296:
1292:
1286:
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1281:
1278:
1276:
1273:
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1268:
1266:
1265:Meteor shower
1263:
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1167:Orbit diagram
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1062:
1061:Physical info
1058:
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1038:
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1026:
1022:
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1014:
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987:
983:
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977:
975:
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965:
962:
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937:
933:
926:
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676:
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650:4179 Toutatis
647:
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629:
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495:Imaging radar
492:
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318:
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286:Jupiter
284:
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205:(1066.5
204:
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153:(468.88
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59:
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45:
32:
27:
16:
1952:Space debris
1636:101955 Bennu
1519:NEO Surveyor
1467:
1458:
1451:
1436:New Horizons
1434:
1422:
1408:
1401:
1388:
1365:
1358:
1352:Space probes
1341:Torino scale
1250:Impact event
1178:
1170:
1162:
1154:
1146:
1130:
1115:
1107:
1099:
1096:Observations
1091:
1079:
1064:
1056:
1048:
1040:
1032:
1024:
1021:Orbital info
1016:
1008:
999:
940:. Retrieved
936:the original
925:
907:
896:
878:
866:. Retrieved
862:the original
844:
804:. Retrieved
763:. Retrieved
604:
570:
559:2008 passage
535:
470:
469:
444:
216:Mean anomaly
185:Eccentricity
149:3.1343
72:Designations
15:
1942:Cosmic dust
1906:Long-period
1896:Halley-type
1852:Kuiper belt
1737:Designation
1367:Deep Impact
1228:Main topics
1088:Ephemerides
1005:Ephemerides
829:rubble pile
358:Equatorial
345:Equatorial
309:~250 meters
275:Earth
242:Inclination
231:Mean motion
1967:Categories
1947:Meteoroids
1926:Sungrazing
1901:Hyperbolic
1857:Oort cloud
1800:Near-Earth
1600:Spaceguard
1559:Spacewatch
1539:Pan-STARRS
1534:Orbit@home
1442:OSIRIS-REx
990:Phil Plait
868:30 January
837:10 kg
806:26 January
720:References
674:) of Earth
545:trajectory
381:(1.1
325:10 kg
305:Dimensions
201:2.92
163:Perihelion
1837:Damocloid
1595:NEOShield
1430:NEA Scout
1410:Hayabusa2
1275:Meteoroid
1270:Meteorite
1159:Ephemeris
1151:Discovery
1127:2007 TU24
1076:2007 TU24
996:2007 TU24
648:Asteroid
630:Asteroid
526:naked eye
47:Discovery
1921:Periodic
1847:Detached
1767:Asteroid
1482:tracking
1469:Stardust
1403:Hayabusa
1235:Asteroid
982:Archived
964:Archived
915:Archived
886:Archived
800:Archived
765:30 March
693:See also
406:Surface
377:26
270:334.254°
258:127.041°
145:Aphelion
1886:Extinct
1825:Centaur
1641:2010 RF
1631:1950 DA
1524:NEOSSat
1453:Rosetta
1447:PROCYON
1294:Defense
1129:at the
1120:Summary
942:1 March
679:Apophis
633:2004 XP
581:2007 TU
538:2007 TU
512:2005 YU
491:Arizona
472:2007 TU
430:unknown
352:unknown
339:unknown
334:density
246:5.6232°
189:0.53423
37:2007 TU
20:2007 TU
1878:Comets
1790:Family
1775:Active
1742:Groups
1554:Sentry
1514:NEODyS
1504:LONEOS
1499:LINEAR
1460:Philae
1416:MASCOT
1373:HAMMER
1240:Bolide
1179:·
1177:
1171:·
1169:
1163:·
1161:
1155:·
1153:
1147:·
1145:
1116:·
1114:
1108:·
1106:
1100:·
1098:
1092:·
1090:
1065:·
1063:
1057:·
1055:
1049:·
1047:
1041:·
1039:
1033:·
1031:
1025:·
1023:
1017:·
1015:
1009:·
1007:
480:Apollo
478:is an
424:Kelvin
221:267.95
88:Apollo
1935:Other
1891:Great
1489:ATLAS
1181:
1173:
1165:
1157:
1149:
1118:
1110:
1104:Orbit
1102:
1094:
1067:
1059:
1051:
1043:
1035:
1027:
1019:
1011:
408:temp.
332:Mean
319:<
115:Epoch
1911:Lost
1752:Moon
1747:List
1564:WISE
1544:SCAP
1509:NEAT
1389:DART
1383:Hera
1378:AIDA
1360:Dawn
1080:ESA–
1029:MOID
944:2014
870:2008
854:NASA
833:2.45
808:2008
792:NASA
767:2016
600:km/s
457:20.3
454:20.2
415:mean
397:0.24
315:Mass
288:MOID
277:MOID
1480:NEO
1078:at
998:at
858:JPL
796:JPL
577:UTC
553:UTC
503:UTC
489:in
445:(H)
418:max
412:min
321:2.4
98:PHA
93:NEO
1969::
1643:12
852:.
816:^
790:.
775:^
746:^
728:^
672:AU
665:10
636:14
613:.
602:.
596:mi
592:km
588:AU
583:24
579:,
555:.
540:24
515:55
474:24
203:yr
155:Gm
151:AU
119:JD
39:24
22:24
1709:e
1702:t
1695:v
1213:e
1206:t
1199:v
988:(
946:.
872:.
856:/
835:×
810:.
794:/
769:.
688:.
385:)
383:d
379:h
323:×
223:°
209:)
207:d
157:)
129:0
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