1447:
742:, causing a magnitude drop from 8.4 to 14.1 during 2.8 seconds. The occultation was visible over Southern Japan, Eastern China, as well as from Southern California to North Florida. The asteroid's 23-kilometer-wide shadow had a speed of approximately
1200:
Veres, Peter; Jedicke, Robert; Fitzsimmons, Alan; Denneau, Larry; Granvik, Mikael; Bolin, Bryce; et al. (November 2015). "Absolute magnitudes and slope parameters for 250,000 asteroids observed by Pan-STARRS PS1 - Preliminary results".
1094:
Masiero, Joseph R.; Mainzer, A. K.; Grav, T.; Bauer, J. M.; Cutri, R. M.; Nugent, C.; et al. (November 2012). "Preliminary
Analysis of WISE/NEOWISE 3-Band Cryogenic and Post-cryogenic Observations of Main Belt Asteroids".
1155:
Usui, Fumihiko; Kuroda, Daisuke; Müller, Thomas G.; Hasegawa, Sunao; Ishiguro, Masateru; Ootsubo, Takafumi; et al. (October 2011). "Asteroid
Catalog Using Akari: AKARI/IRC Mid-Infrared Asteroid Survey".
1034:
Nugent, C. R.; Mainzer, A.; Masiero, J.; Bauer, J.; Cutri, R. M.; Grav, T.; et al. (December 2015). "NEOWISE Reactivation
Mission Year One: Preliminary Asteroid Diameters and Albedos".
1586:
1521:
1876:
1851:
334:
1579:
1866:
1514:
1547:
104:
701:
1861:
1572:
1703:
1257:
Hess, Kylie; Ditteon, Richard (April 2016). "Asteroid
Lightcurve Analysis at the Oakley Southern Sky Observatory: 2014 November".
1507:
1360:
32:
655:
311:
1635:
1183:
240:
1856:
1794:
1871:
1468:
677:
1620:
962:
1784:
1774:
990:
522:, approximately 17 kilometers (11 miles) in diameter. It was discovered on 4 January 1989, by Japanese astronomers
1779:
845:
48:
1615:
708:
measures between 15.68 and 19.49 kilometers in diameter and its surface has an albedo between 0.05 and 0.0849.
609:
74:
1799:
1683:
1595:
1441:
898:
Nugent, C. R.; Mainzer, A.; Bauer, J.; Cutri, R. M.; Kramer, E. A.; Grav, T.; et al. (September 2016).
457:
342:
229:
216:
208:
1326:
1720:
775:
647:
809:
1625:
1530:
663:
535:
323:
194:
1693:
1429:
1405:
1397:
1382:
1313:
1266:
1220:
1165:
1114:
1053:
1002:
921:
731:
582:
539:
251:
1421:
1413:
1388:
869:
770:
766:
762:
739:
628:
586:
566:
547:
531:
300:
166:
91:
53:
1236:
1210:
1130:
1104:
1069:
1043:
911:
716:
474:
1476:
1678:
1630:
1274:
693:
668:
574:
222:
182:
1296:
1804:
1460:
1452:
1228:
1173:
1122:
1061:
929:
745:
400:
174:
1492:
1725:
1668:
1653:
1436:
1364:
673:
632:
624:
601:
578:
562:
463:
202:
1370:
1270:
1224:
1169:
1118:
1057:
1006:
925:
1740:
1708:
1673:
1484:
1446:
1353:
590:
527:
281:
262:
41:
1357:
1065:
612:
in
December 1935, or 53 years prior to its official discovery observation at Kushiro.
1845:
1764:
1663:
1658:
1553:
1126:
934:
899:
534:
on
Hokkaido, Japan. The likely elongated asteroid has a brightness variation of 0.45
519:
1240:
1134:
1830:
1603:
1073:
758:
570:
274:
160:
144:
1232:
841:
1820:
1769:
1730:
1376:
289:
1187:
1789:
1735:
1541:
659:
523:
186:
37:
1278:
1177:
1825:
1715:
1564:
688:
According to the surveys carried out by the
Infrared Astronomical Satellite
354:
150:
715:
derives an albedo of 0.0777 and a diameter of 16.54 kilometers based on an
1499:
1645:
749:. An approximate diameter of 20 kilometers was assumed for the asteroid.
594:
515:
900:"NEOWISE Reactivation Mission Year Two: Asteroid Diameters and Albedos"
697:
989:
Tedesco, E. F.; Noah, P. V.; Noah, M.; Price, S. D. (October 2004).
1215:
1048:
916:
662:
could be constructed. The asteroid's brightness amplitude was 0.42
1756:
1109:
543:
689:
1568:
1503:
1383:
769:
is located. The official naming citation was published by the
672:), indicative for an elongated shape. As of 2018, the body's
1297:"(5176) Yoichi / HIP 14421 event on 2014 Nov 02, 10:58 UT"
842:"JPL Small-Body Database Browser: 5176 Yoichi (1989 AU)"
546:
in
November 2014. It was named for the Japanese town of
1813:
1755:
1692:
1644:
1602:
472:
455:
398:
340:
333:
321:
309:
299:
287:
272:
260:
250:
238:
228:
215:
201:
173:
142:
102:
84:
72:
67:
59:
47:
31:
26:
1158:Publications of the Astronomical Society of Japan
864:
862:
1290:
1288:
1089:
1087:
1085:
1083:
1580:
1515:
1029:
1027:
1025:
1023:
893:
891:
889:
887:
577:once every 4 years and 5 months (1,609 days;
8:
1252:
1250:
804:
802:
800:
798:
796:
794:
792:
21:
1608:
1587:
1573:
1565:
1522:
1508:
1500:
1445:
1377:Asteroids and comets rotation curves, CdR
1214:
1108:
1047:
933:
915:
836:
834:
832:
830:
870:"Asteroid 5176 Yoichi – Proper Elements"
573:main-belt at a distance of 1.9–3.5
1877:Astronomical objects discovered in 1989
1852:Minor planet object articles (numbered)
1379:– Observatoire de Genève, Raoul Behrend
1150:
1148:
1146:
1144:
984:
982:
980:
788:
631:is rather indicative of a carbonaceous
957:
955:
953:
951:
949:
947:
945:
713:Collaborative Asteroid Lightcurve Link
604:begins with its first observations as
20:
965:. Asteroid Lightcurve Database (LCDB)
761:was named after the Japanese town of
312:Longitude of ascending node
7:
872:. AstDyS-2, Asteroids – Dynamic Site
658:in Australia. However no rotational
1450:
1354:Asteroid Lightcurve Database (LCDB)
765:on Hokkaido, where the discovering
702:Wide-field Infrared Survey Explorer
581:of 2.69 AU). Its orbit has an
14:
1097:The Astrophysical Journal Letters
1393:AstDyS-2, Asteroids—Dynamic Site
1371:Dictionary of Minor Planet Names
654:was taken by astronomers at the
518:from the central regions of the
991:"IRAS Minor Planet Survey V6.0"
656:Oakley Southern Sky Observatory
1001:: IRAS-A-FPA-3-RDR-IMPS-V6.0.
565:asteroid from the main belt's
1:
1867:Discoveries by Hiroshi Kaneda
963:"LCDB Data for (5176) Yoichi"
1233:10.1016/j.icarus.2015.08.007
542:a star in the constellation
1066:10.1088/0004-637X/814/2/117
569:. It orbits the Sun in the
324:Argument of perihelion
1893:
1127:10.1088/2041-8205/759/1/L8
995:NASA Planetary Data System
935:10.3847/0004-6256/152/3/63
680:and shape remain unknown.
510:, provisional designation
145:Minor planet category
1862:Discoveries by Seiji Ueda
1611:
1596:Small Solar System bodies
1537:
1259:The Minor Planet Bulletin
1036:The Astrophysical Journal
846:Jet Propulsion Laboratory
501:
263:Orbital period (sidereal)
193:
181:
1363:16 December 2017 at the
904:The Astronomical Journal
844:(2017-07-05 last obs.).
616:Physical characteristics
610:Johannesburg Observatory
554:Orbit and classification
475:Absolute magnitude
335:Physical characteristics
105:Alternative designations
1531:Minor planets navigator
1442:JPL Small-Body Database
1301:asteroidoccultation.com
810:"5176 Yoichi (1989 AU)"
175:Orbital characteristics
1721:Trans-Neptunian object
1406:Observation prediction
1178:10.1093/pasj/63.5.1117
1385:– Minor Planet Center
1327:"MPC/MPO/MPS Archive"
567:background population
195:Uncertainty parameter
1857:Background asteroids
1694:Distant minor planet
727:On 2 November 2014,
593:with respect to the
75:MPC designation
1872:Named minor planets
1493:Physical parameters
1331:Minor Planet Center
1271:2016MPBu...43..120H
1225:2015Icar..261...34V
1188:AcuA catalog p. 153
1170:2011PASJ...63.1117U
1119:2012ApJ...759L...8M
1058:2015ApJ...814..117N
1007:2004PDSS...12.....T
926:2016AJ....152...63N
814:Minor Planet Center
771:Minor Planet Center
767:Kushiro Observatory
740:constellation Cetus
734:8.4 magnitude star
684:Diameter and albedo
627:, while the body's
532:Kushiro Observatory
60:Discovery date
49:Discovery site
23:
1430:Observational info
773:on 4 August 2001 (
717:absolute magnitude
700:mission of NASA's
646:In November 2015,
514:, is a background
33:Discovered by
1839:
1838:
1751:
1750:
1636:Meanings of names
1562:
1561:
505:
504:
295:0° 13 25.32 / day
268:4.41 yr (1,609 d)
1884:
1609:
1589:
1582:
1575:
1566:
1524:
1517:
1510:
1501:
1485:Orbital elements
1449:
1342:
1341:
1339:
1337:
1323:
1317:
1311:
1309:
1307:
1295:Preston, Steve.
1292:
1283:
1282:
1254:
1245:
1244:
1218:
1197:
1191:
1181:
1164:(5): 1117–1138.
1152:
1139:
1138:
1112:
1091:
1078:
1077:
1051:
1031:
1018:
1017:
1015:
1013:
986:
975:
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972:
970:
959:
940:
939:
937:
919:
895:
882:
881:
879:
877:
866:
857:
856:
854:
852:
838:
825:
824:
822:
820:
806:
779:
748:
737:
671:
607:
513:
493:
491:
468:
451:
449:
443:
440:
436:
434:
428:
426:
420:
418:
412:
410:
401:Geometric albedo
394:
392:
386:
384:
378:
376:
370:
368:
362:
357:
352:
164:
138:
127:
98:
97:
27:Discovery
24:
1892:
1891:
1887:
1886:
1885:
1883:
1882:
1881:
1842:
1841:
1840:
1835:
1809:
1747:
1688:
1640:
1598:
1593:
1563:
1558:
1533:
1528:
1422:Proper elements
1365:Wayback Machine
1350:
1345:
1335:
1333:
1325:
1324:
1320:
1305:
1303:
1294:
1293:
1286:
1256:
1255:
1248:
1199:
1198:
1194:
1154:
1153:
1142:
1093:
1092:
1081:
1033:
1032:
1021:
1011:
1009:
988:
987:
978:
968:
966:
961:
960:
943:
897:
896:
885:
875:
873:
868:
867:
860:
850:
848:
840:
839:
828:
818:
816:
808:
807:
790:
786:
774:
755:
743:
735:
725:
694:Akari satellite
692:, the Japanese
686:
674:rotation period
667:
644:
642:Rotation period
633:C-type asteroid
625:S-type asteroid
618:
605:
602:observation arc
585:of 0.31 and an
579:semi-major axis
556:
511:
496:
494:
489:
487:
486:
484:
480:
466:
460:
447:
445:
444:
441:
438:
437:
432:
430:
429:
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421:
416:
414:
413:
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406:
403:
390:
388:
387:
382:
380:
379:
374:
372:
371:
366:
364:
363:
360:
358:
350:
348:
345:
326:
314:
292:
277:
265:
243:
241:Semi-major axis
203:Observation arc
185:23 March 2018 (
165:
158:
147:
137:
133:
126:
122:
121:
115:
107:
96:(Japanese town)
95:
90:
87:
77:
40:
17:
12:
11:
5:
1890:
1888:
1880:
1879:
1874:
1869:
1864:
1859:
1854:
1844:
1843:
1837:
1836:
1834:
1833:
1828:
1823:
1817:
1815:
1811:
1810:
1808:
1807:
1802:
1797:
1795:Near-parabolic
1792:
1787:
1782:
1777:
1772:
1767:
1761:
1759:
1753:
1752:
1749:
1748:
1746:
1745:
1744:
1743:
1741:Scattered disc
1738:
1733:
1728:
1718:
1713:
1712:
1711:
1709:Neptune trojan
1706:
1698:
1696:
1690:
1689:
1687:
1686:
1684:Spectral types
1681:
1676:
1674:Jupiter trojan
1671:
1666:
1661:
1656:
1650:
1648:
1642:
1641:
1639:
1638:
1633:
1628:
1623:
1618:
1612:
1606:
1600:
1599:
1594:
1592:
1591:
1584:
1577:
1569:
1560:
1559:
1557:
1556:
1551:
1544:
1538:
1535:
1534:
1529:
1527:
1526:
1519:
1512:
1504:
1498:
1497:
1496:
1495:
1453:Close approach
1434:
1433:
1432:
1386:
1380:
1374:
1373:, Google books
1368:
1356:, query form (
1349:
1348:External links
1346:
1344:
1343:
1318:
1284:
1246:
1192:
1140:
1079:
1019:
976:
941:
883:
858:
826:
787:
785:
782:
754:
751:
724:
721:
685:
682:
643:
640:
623:is an assumed
617:
614:
555:
552:
528:Hiroshi Kaneda
503:
502:
499:
498:
481:
473:
470:
469:
461:
456:
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452:
404:
399:
396:
395:
346:
341:
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63:4 January 1989
61:
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1695:
1691:
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1680:
1677:
1675:
1672:
1670:
1667:
1665:
1664:Asteroid belt
1662:
1660:
1659:Aten asteroid
1657:
1655:
1652:
1651:
1649:
1647:
1643:
1637:
1634:
1632:
1629:
1627:
1624:
1622:
1619:
1617:
1614:
1613:
1610:
1607:
1605:
1604:Minor planets
1601:
1597:
1590:
1585:
1583:
1578:
1576:
1571:
1570:
1567:
1555:
1554:5177 Hugowolf
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1478:
1477:Orbit diagram
1474:
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1234:
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1226:
1222:
1217:
1212:
1208:
1204:
1196:
1193:
1189:
1185:
1179:
1175:
1171:
1167:
1163:
1159:
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1149:
1147:
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1141:
1136:
1132:
1128:
1124:
1120:
1116:
1111:
1106:
1102:
1098:
1090:
1088:
1086:
1084:
1080:
1075:
1071:
1067:
1063:
1059:
1055:
1050:
1045:
1041:
1037:
1030:
1028:
1026:
1024:
1020:
1008:
1004:
1000:
996:
992:
985:
983:
981:
977:
964:
958:
956:
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950:
948:
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942:
936:
931:
927:
923:
918:
913:
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905:
901:
894:
892:
890:
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884:
871:
865:
863:
859:
847:
843:
837:
835:
833:
831:
827:
815:
811:
805:
803:
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799:
797:
795:
793:
789:
783:
781:
777:
772:
768:
764:
760:
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747:
741:
733:
730:
722:
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613:
611:
603:
598:
596:
592:
588:
584:
580:
576:
572:
568:
564:
560:
553:
551:
549:
545:
541:
537:
533:
529:
525:
521:
520:asteroid belt
517:
509:
500:
482:
479:
478:
471:
465:
462:
459:
458:Spectral type
454:
405:
402:
397:
356:
347:
344:
343:Mean diameter
339:
336:
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328:
325:
320:
316:
313:
308:
304:
302:
298:
294:
291:
286:
283:
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233:
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196:
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188:
184:
180:
176:
172:
168:
162:
156:
153:
152:
149:
146:
141:
131:
119:
116:1948 VS
113:
110:1989 AU
109:
106:
101:
93:
89:
83:
80:(5176) Yoichi
79:
76:
71:
66:
62:
58:
55:
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50:
46:
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25:
19:
1831:Space debris
1546:
1488:
1480:
1472:
1464:
1456:
1440:
1425:
1417:
1414:Orbital info
1409:
1401:
1392:
1334:. Retrieved
1330:
1321:
1304:. Retrieved
1300:
1262:
1258:
1206:
1202:
1195:
1161:
1157:
1100:
1096:
1039:
1035:
1010:. Retrieved
998:
994:
967:. Retrieved
907:
903:
874:. Retrieved
849:. Retrieved
817:. Retrieved
813:
759:minor planet
756:
728:
726:
712:
710:
705:
687:
651:
645:
635:
620:
619:
599:
583:eccentricity
558:
557:
507:
506:
476:
393:1.15 km
385:5.20 km
377:4.79 km
275:Mean anomaly
252:Eccentricity
154:
129:
120: 1948 WS
117:
114: 1935 YH
111:
68:Designations
54:Kushiro Obs.
18:
1821:Cosmic dust
1785:Long-period
1775:Halley-type
1731:Kuiper belt
1616:Designation
1548:5176 Yoichi
1542:5175 Ables
1437:5176 Yoichi
1389:5176 Yoichi
723:Occultation
648:photometric
636:(see below)
600:The body's
587:inclination
508:5176 Yoichi
369:0.7 km
301:Inclination
290:Mean motion
86:Named after
22:5176 Yoichi
1846:Categories
1826:Meteoroids
1805:Sungrazing
1780:Hyperbolic
1736:Oort cloud
1679:Near-Earth
1265:(2): 120.
1216:1506.00762
1049:1509.02522
1012:22 October
917:1606.08923
876:29 October
784:References
660:lightcurve
524:Seiji Ueda
353:1.57
230:Perihelion
211:(29,777 d)
189:2458200.5)
167:background
1716:Damocloid
1469:Ephemeris
1461:Discovery
1398:Ephemeris
1279:1052-8091
1209:: 34–47.
1110:1209.5794
1042:(2): 13.
910:(3): 12.
744:6.8
736:HIP 14421
719:of 12.3.
664:magnitude
561:is a non-
536:magnitude
467:(assumed)
442:(derived)
361:(derived)
359:16.54 km
246:2.6872 AU
234:1.8546 AU
151:main-belt
42:H. Kaneda
1800:Periodic
1726:Detached
1646:Asteroid
1361:Archived
1336:25 April
1306:25 April
1241:53493339
1135:46350317
1103:(1): 5.
969:25 April
851:25 April
819:25 April
732:occulted
696:and the
650:data of
595:ecliptic
540:occulted
516:asteroid
217:Aphelion
94:
16:Asteroid
1765:Extinct
1704:Centaur
1439:at the
1314:Summary
1267:Bibcode
1221:Bibcode
1166:Bibcode
1115:Bibcode
1074:9341381
1054:Bibcode
1003:Bibcode
922:Bibcode
738:in the
698:NEOWISE
606:1935 YH
571:central
530:at the
512:1989 AU
329:269.81°
317:93.615°
305:7.7043°
221:3.5198
177:
169:
134:1961 TK
123:1952 OH
38:S. Ueda
1757:Comets
1669:Family
1654:Active
1621:Groups
1489:·
1487:
1481:·
1479:
1473:·
1471:
1465:·
1463:
1457:·
1455:
1426:·
1424:
1418:·
1416:
1410:·
1408:
1402:·
1400:
1277:
1239:
1203:Icarus
1184:online
1133:
1072:
776:M.P.C.
763:Yoichi
753:Naming
729:Yoichi
706:Yoichi
669:U=n.a.
652:Yoichi
629:albedo
621:Yoichi
563:family
559:Yoichi
548:Yoichi
538:, and
446:0.0849
439:0.0777
280:295.85
256:0.3098
207:81.52
161:middle
155:·
130:·
128:
118:·
112:·
92:Yoichi
1814:Other
1770:Great
1491:
1483:
1475:
1467:
1459:
1428:
1420:
1412:
1404:
1237:S2CID
1211:arXiv
1131:S2CID
1105:arXiv
1070:S2CID
1044:arXiv
912:arXiv
778:43189
757:This
544:Cetus
497:12.57
495:12.40
488:12.36
483:12.20
450:0.007
435:0.008
431:0.061
419:0.048
415:0.054
389:19.49
381:18.92
373:16.74
365:16.56
349:15.68
183:Epoch
157:
132:
1790:Lost
1631:Moon
1626:List
1358:info
1338:2018
1308:2018
1275:ISSN
1014:2019
971:2018
878:2019
853:2018
821:2018
746:km/s
711:The
690:IRAS
678:pole
589:of 8
526:and
492:0.26
485:12.3
427:0.03
423:0.06
411:0.03
407:0.05
1391:at
1229:doi
1207:261
1174:doi
1123:doi
1101:759
1062:doi
1040:814
930:doi
908:152
780:).
608:at
477:(H)
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902:.
886:^
861:^
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791:^
704:,
676:,
638:.
597:.
575:AU
550:.
355:km
223:AU
209:yr
187:JD
1588:e
1581:t
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591:°
490:±
464:S
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417:±
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391:±
383:±
375:±
367:±
351:±
282:°
197:0
163:)
159:(
136:1
125:1
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