Knowledge (XXG)

4954 Eric

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Hanus, J.; Durech, J.; Broz, M.; Marciniak, A.; Warner, B. D.; Pilcher, F.; et al. (March 2013). "Asteroids' physical models from combined dense and sparse photometry and scaling of the YORP effect by the observed obliquity distribution".
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in 1983. On 2007 October 11 the asteroid passed 0.2865 AU (42,860,000 km; 26,630,000 mi) from Earth. It currently makes closer approaches to Mars than it does Earth. The asteroid has a rotation period of 12.05 hours.
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on 23 September 1990. The asteroid was named after its discoverer's son, Eric Roman.
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Philip A. Bland; Elaine A. Moore; Ian Wright; Mike Widdowson (2004).
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Orbit diagram of 4954 Eric with location of object on 18 June 2013
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JPL Solar System Dynamics 267:Argument of perihelion 1217: 1107: 513:Astronomy and Astrophysics 1201:Near-Earth asteroid stubs 874: 859:Small Solar System bodies 800: 383:) is an eccentric, stony 364: 198:Orbital period (sidereal) 127: 115: 23: 1191:S-type asteroids (SMASS) 352:Absolute magnitude  289:Physical characteristics 99:Alternative designations 794:Minor planets navigator 705:JPL Small-Body Database 535:2013A&A...551A..67H 456:"(4954) Eric = 1990 SQ" 319:Synodic rotation period 110:Orbital characteristics 984:Trans-Neptunian object 637:Observation prediction 411: 570:(2012-09-04 last obs) 409: 141:14681 days (40.19 yr) 129:Uncertainty parameter 957:Distant minor planet 87:MPC designation 1186:Named minor planets 756:Physical parameters 460:Minor Planet Center 416:near-Earth asteroid 401:Palomar Observatory 72:Discovery date 61:Discovery site 20: 669:Observational info 434:(17 km), and 414:It is the largest 412: 238:0° 20 52.944 / day 49:Discovered by 1133: 1132: 1102: 1101: 1014: 1013: 899:Meanings of names 825: 824: 602:978-0-521-54620-1 418:discovered since 389:near-Earth object 376:prov. designation 368: 367: 119:13 January 2016 ( 75:23 September 1990 1208: 1154: 1147: 1140: 1116: 1109: 872: 852: 845: 838: 829: 787: 780: 773: 764: 748:Orbital elements 712: 677:Close approaches 607: 606: 586: 580: 579: 577: 575: 564: 555: 554: 528: 507: 498: 497: 495: 493: 482: 471: 470: 468: 466: 452: 420:3552 Don Quixote 387:, classified as 382: 345: 28: 21: 1216: 1215: 1211: 1210: 1209: 1207: 1206: 1205: 1161: 1160: 1159: 1158: 1105: 1103: 1098: 1072: 1010: 951: 903: 861: 856: 826: 821: 805:(4953) 1990 MU 796: 791: 693:Orbit animation 661:Proper elements 616: 611: 610: 603: 588: 587: 583: 573: 571: 566: 565: 558: 509: 508: 501: 491: 489: 484: 483: 474: 464: 462: 454: 453: 449: 444: 438:(8.5 km). 380: 357: 339: 333: 321: 309: 269: 257: 235: 220: 200: 178: 176:Semi-major axis 137:Observation arc 101: 89: 38: 30:Shape model of 12: 11: 5: 1214: 1212: 1204: 1203: 1198: 1193: 1188: 1183: 1178: 1176:Amor asteroids 1173: 1163: 1162: 1157: 1156: 1149: 1142: 1134: 1131: 1130: 1117: 1100: 1099: 1097: 1096: 1091: 1086: 1080: 1078: 1074: 1073: 1071: 1070: 1065: 1060: 1058:Near-parabolic 1055: 1050: 1045: 1040: 1035: 1030: 1024: 1022: 1016: 1015: 1012: 1011: 1009: 1008: 1007: 1006: 1004:Scattered disc 1001: 996: 991: 981: 976: 975: 974: 972:Neptune trojan 969: 961: 959: 953: 952: 950: 949: 947:Spectral types 944: 939: 937:Jupiter trojan 934: 929: 924: 919: 913: 911: 905: 904: 902: 901: 896: 891: 886: 881: 875: 869: 863: 862: 857: 855: 854: 847: 840: 832: 823: 822: 820: 819: 814: 807: 801: 798: 797: 792: 790: 789: 782: 775: 767: 761: 760: 759: 758: 716:Close approach 697: 696: 695: 615: 614:External links 612: 609: 608: 601: 581: 556: 499: 472: 446: 445: 443: 440: 366: 365: 362: 361: 358: 350: 347: 346: 334: 329: 326: 325: 322: 317: 314: 313: 310: 305: 302: 301: 298: 292: 291: 285: 284: 281: 274: 273: 270: 265: 262: 261: 258: 253: 250: 249: 246: 240: 239: 236: 231: 228: 227: 221: 216: 213: 212: 201: 196: 193: 192: 189: 183: 182: 179: 174: 171: 170: 167: 161: 160: 149: 143: 142: 139: 133: 132: 125: 124: 113: 112: 106: 105: 102: 97: 94: 93: 90: 85: 82: 81: 77: 76: 73: 69: 68: 63: 57: 56: 54:Brian P. Roman 51: 45: 44: 40: 39: 29: 13: 10: 9: 6: 4: 3: 2: 1213: 1202: 1199: 1197: 1194: 1192: 1189: 1187: 1184: 1182: 1179: 1177: 1174: 1172: 1169: 1168: 1166: 1155: 1150: 1148: 1143: 1141: 1136: 1135: 1129: 1127: 1123: 1118: 1115: 1111: 1106: 1095: 1092: 1090: 1087: 1085: 1082: 1081: 1079: 1075: 1069: 1066: 1064: 1061: 1059: 1056: 1054: 1051: 1049: 1046: 1044: 1041: 1039: 1036: 1034: 1031: 1029: 1026: 1025: 1023: 1021: 1017: 1005: 1002: 1000: 997: 995: 992: 990: 987: 986: 985: 982: 980: 977: 973: 970: 968: 965: 964: 963: 962: 960: 958: 954: 948: 945: 943: 940: 938: 935: 933: 930: 928: 927:Asteroid belt 925: 923: 922:Aten asteroid 920: 918: 915: 914: 912: 910: 906: 900: 897: 895: 892: 890: 887: 885: 882: 880: 877: 876: 873: 870: 868: 867:Minor planets 864: 860: 853: 848: 846: 841: 839: 834: 833: 830: 818: 815: 813: 812: 808: 806: 803: 802: 799: 795: 788: 783: 781: 776: 774: 769: 768: 765: 757: 753: 749: 745: 741: 740:Orbit diagram 737: 733: 729: 725: 721: 717: 714: 711: 707: 706: 701: 698: 694: 690: 686: 685:Physical info 682: 678: 674: 670: 666: 662: 658: 654: 650: 646: 642: 638: 634: 630: 627: 626: 625: 621: 618: 617: 613: 604: 598: 594: 593: 585: 582: 569: 563: 561: 557: 552: 548: 544: 540: 536: 532: 527: 522: 518: 514: 506: 504: 500: 487: 481: 479: 477: 473: 461: 457: 451: 448: 441: 439: 437: 436:1866 Sisyphus 433: 429: 424: 421: 417: 408: 404: 402: 398: 394: 390: 386: 378: 377: 372: 363: 359: 356: 355: 348: 343: 338: 335: 332: 331:Spectral type 327: 323: 320: 315: 311: 308: 303: 299: 297: 293: 290: 286: 282: 280: 275: 271: 268: 263: 259: 256: 251: 247: 245: 241: 237: 234: 229: 226: 222: 219: 214: 210: 206: 202: 199: 194: 190: 188: 184: 180: 177: 172: 168: 166: 162: 158: 155:(433.73  154: 150: 148: 144: 140: 138: 134: 130: 126: 122: 118: 114: 111: 107: 103: 100: 95: 91: 88: 83: 78: 74: 70: 67: 64: 62: 58: 55: 52: 50: 46: 41: 37: 33: 27: 22: 16: 1126:expanding it 1119: 1104: 1094:Space debris 809: 751: 743: 735: 727: 719: 703: 688: 680: 672: 664: 656: 648: 645:Orbital info 640: 632: 623: 591: 584: 572:. Retrieved 516: 512: 490:. Retrieved 463:. Retrieved 450: 428:1036 Ganymed 425: 413: 375: 370: 369: 353: 324:12.052 hours 218:Mean anomaly 187:Eccentricity 151:2.8993  80:Designations 66:Palomar Obs. 31: 15: 1084:Cosmic dust 1048:Long-period 1038:Halley-type 994:Kuiper belt 879:Designation 629:Ephemerides 397:Brian Roman 307:Mean radius 277:Earth  244:Inclination 233:Mean motion 92:(4954) Eric 1165:Categories 1089:Meteoroids 1068:Sungrazing 1043:Hyperbolic 999:Oort cloud 942:Near-Earth 574:30 October 442:References 393:Amor group 296:Dimensions 165:Perihelion 123:2457400.5) 36:lightcurve 979:Damocloid 817:4955 Gold 811:4954 Eric 732:Ephemeris 724:Discovery 700:4954 Eric 620:4954 Eric 551:118627434 526:1301.6943 371:4954 Eric 43:Discovery 34:from its 19:4954 Eric 1063:Periodic 989:Detached 909:Asteroid 492:11 April 432:433 Eros 391:of the 385:asteroid 248:17.4461° 207:(1034.4 147:Aphelion 1028:Extinct 967:Centaur 702:at the 531:Bibcode 381:1990 SQ 342:SMASSII 300:10.8 km 272:52.429° 260:358.52° 191:0.44848 104:1990 SQ 1020:Comets 932:Family 917:Active 884:Groups 752:· 750:  744:· 742:  736:· 734:  728:· 726:  720:· 718:  689:· 687:  681:· 679:  673:· 671:  665:· 663:  657:· 655:  649:· 647:  641:· 639:  633:· 631:  599:  549:  519:: 16. 465:4 June 312:5.4 km 223:314.18 1077:Other 1033:Great 754: 746: 738: 730: 722: 691: 683: 675: 667: 659: 651: 643: 635: 547:S2CID 521:arXiv 203:2.83 117:Epoch 1122:stub 1053:Lost 894:Moon 889:List 653:MOID 597:ISBN 576:2013 494:2013 467:2015 360:12.6 279:MOID 32:Eric 622:at 539:doi 517:551 399:at 354:(H) 1167:: 559:^ 545:. 537:. 529:. 515:. 502:^ 475:^ 458:. 379:: 205:yr 157:Gm 153:AU 121:JD 1153:e 1146:t 1139:v 1128:. 851:e 844:t 837:v 786:e 779:t 772:v 605:. 578:. 553:. 541:: 533:: 523:: 496:. 469:. 373:( 344:) 340:( 337:S 225:° 211:) 209:d 159:) 131:0

Index


lightcurve
Discovered by
Brian P. Roman
Discovery site
Palomar Obs.
MPC designation
Alternative designations
Orbital characteristics
Epoch
JD
Uncertainty parameter
Observation arc
Aphelion
AU
Gm
Perihelion
Semi-major axis
Eccentricity
Orbital period (sidereal)
yr
d
Mean anomaly
°
Mean motion
Inclination
Longitude of ascending node
Argument of perihelion
MOID
Physical characteristics

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