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Table 8:

Comparison of known spin periods and pole coordinates, and results from inversion of Hipparcos data.
Object Number Ground-based observations Inversion solution
  P (h) Pole P (h) Pole $N_{{\rm obs}}$
1 9.075 (332, 70) 18.116 (337, 85) 65
2 7.8132 (193, 43) 7.63075 (198, 56) 43
      11.30525 (18, -46) 43
      7.21859 (206, 58) 60
3 7.210 (106, 34), (320, 60) 13.59130 (125, 45) 58
      7.20522 (282, -21) 58
4 5.342 (326, 53) 10.68272 (350, 70) 58
      5.34214 (345, 65) 58
5 16.800 (123, 51), (319, 49) 16.80189 (288, 49) 81
6 7.2745 (355, 41), (338, 44) 7.27290 (45, 75) 85
      7.27275 (93, 37), (295, 29) 85
      14.79105 (338, 44) 63
10 27.623 (111, -36), (298, -37) 37.54308 (12, 71) 46
      27.65959 (5, -87) 46
15 6.083 (106, -74), (353, -60) 6.08273 (347, -64) 83
20 8.098 (23, 59), (203, 60) 8.09971 (48, -55) 48
28 15.695 (83, 18), (275, 40) 15.70581 among others (86, 32) for this P 33
39 5.138 (324, 31) 5.13830 (335, 47), (126, 20) 109
40 8.910 (17, 31), (204, 33) 8.91069 (24, -31) 37
42 13.5970 (119, -18), (291, -20) 13.58563 (84, 69) 40
44 6.422 (100, 53), (296, 52) 6.42160 (298, 36) 41
129 4.9572 (200, 65) 5.11263 (218, -1) 37
192 13.622 (131, 36), (310, -40) 13.37675 (101, -41) 21
      13.62106 (95, -35) 21
216 5.385 (72, 16), (232, 37) 5.42337 (54, 4) 21
      5.38536 (226, 44) 21
230 23.9845 (83, 36), (239, 40) 21.433 (272, -43) 32
349 4.7012 (153, 34), (330, 12) 4.69120 (201, 71) 80
      4.70153 (137, -11) 80
354 4.277 (360, 18) 4.28972 (335, -15) 86
471 7.113 (21, 31), (235, 56) 7.10540 (246, 74) 94
511 5.1294 (300, 30) 56.88594 (129, -53) 47
      37.32501 (342, 63) 47

Note:
Pole coordinates are given in ecliptic coordinates (longitude, latitude). The numbers of Hipparcos observations adopted in different inversion attempts are also listed.

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