Near-Earth Asteroid Rotation Periods
This list was originally compiled by Al Harris (JPL) and has been
modified by Lance Benner using observations made available by Pravec
et al. and others published by Lupishko & Di Martino (1998), Abe et al. (1997),
Hicks et al. (1998), and Whitely et al. (1999)) to include objects that Harris did
not list: 1951 Lick, 4055 Magellan, 4660 Nereus, 6037 (1988 EG), 6322 (1991 CQ),
6491 (1991 OA), 8176 (1991 WA), 10115 (1992 SK), 10302 (1989 ML), 1989 UR, 1995 EK1,
1995 FJ, 199g FG3, 1997 GL3, 1997 SE5, 1998 BY7, 1998 KY26, 1998 ML14, 1998 WB2,
1999 FN19, 1999 GU3, 1999 JM8, 1999 TY2.
As of 1999 June 4, this list contains 36 rotation periods that are not
included in the JPL/Horizons database.
N = 124
Objects included in the histogram:
No Name Orb Tax Dia H Alb. Rot. P Ampl. Rel
-- ---- --- --- --- - ---- ------ ----- ---
433 Eros A S 19.4 11.16*.160 5.270 0.04-1.49 4
887 Alinda A S 4.2 13.76 .314 73.97 0.35 2
1036 Ganymed M S 31.66 9.45 .2926 10.31 0.12-0.45 3
1566 Icarus A --- .9 16.40 .595 2.273 0.05-0.22 4
1580 Betulia A C 5.9 14.8 .06 6.130 0.21-0.65 4 3
1620 Geographos A S 1.77 15.60 .3258 5.223 1.10-2.03 4
1627 Ivar A S 8.1 13.24 .136 4.797 0.25-1.0 3
1685 Toro A S 3.4 14.23 .31 10.196 0.6 -1.25 4
1862 Apollo A Q 1.5 16.25 .246 3.065 0.15-0.60 4
1863 Antinous A SU 1.8 15.54 .329 4.02 0.12 1
1864 Daedalus A SQ 3.7 14.63*.18 8.572 0.88-1.04 3
1865 Cerberus A S 1.0 16.97 .31 6.810 1.48-2.10 3
1866 Sisyphus A 8.2 13.00 .164 2.400 0.11 3
1915 QuetzalcoatlA SMU .35 18.88 .42 4.9 0.26 2
1917 Cuyo A 3.6 14.7 *.18 2.690 0.44 3
1943*Anteros A S 1.8 16.01 .22 2.870 0.08 2
1951 Lick 4.424 Lupishko & Di Martino 1998
1980*TezcatlipocaA SU 4.3 13.96 .26 7.250 0.72 3
1981 Midas A S 2.4 15.6 *.18 5.220 0.65-0.87 3
2061 Anza A TCG: 2.8 16.56*.054 11.50 0.3 2
2062 Aten A S 1.2 17.12*.160 40.77 0.26 2
2063*Bacchus A 1.1 17.3 *.18 14.90 0.22-0.44 3
2100 Ra-Shalom A C 4. 16.05 .04 19.79 0.34 3
2102*Tantalus A 2.7 15.3 *.18 2.391 0.08 2
2201 Oljato A 1.80 15.25 .4328 24. >0.1 1
2212 Hephaistos A SG 6.5 13.41*.18 >20. 0.08-0.11 1
2368 Beltrovata M SQ 2.4 15.21 .250 5.9 0.84 2 N
2608 Seneca A S 1.0 17.52 .172 8. 0.5 2
3102 Krok A QRS 1.5 16.70*.160 147.8 >1.0 3
3103 Eger A E 2.5 15.38 .197 5.709 0.72-0.9 3
3122 Florence A 3.7 14.65*.18 2.36 0.21 2
3199*Nefertiti A S 2.2 15.13 .326 3.021 0.11-0.30 3
3200 Phaethon A F* 5.09 14.60 .0984 4.08 (3.571)0.12 2 (Pravec et al., unpublished)
3288 Seleucus A S 3.0 15.00 .194 >16. >0.4 1 T
3352*McAuliffe A 2.4 15.6 *.18 3. 0.10 1 N
3361 Orpheus A V .3 19.03 .475 3.58 0.32 2
3551 Verenia A V 1.2 16.75 .243 4.930 0.11-0.15 2
3552 Don Quixote M D 14.3 13.00*.054 7.7 >0.41 2 A
3554 Amun A M 2.48 15.82 .1353 2.530 0.19 2
3671 Dionysus A 1.8 16.30*.160 2.705 0.14-0.26 2 B
3691 1982 FT M 3.3 14.9 *.18 226.8 0.5 2 T?
3752 Camillo A 2.6 15.50*.160 37.85 1.1 3 N
3753 Cruithne A 4.1 14.4 *.184 18.14 0.4 2
3757 1982 XB A S .6 18.95 .128 9.012 0.20 3
3908 1980 PA A V 0.6 17.7 *.380 4.427 0.25-0.46 4
3988 1986 LA A 0.7 18.2 *.18 8. 0.2 1 *
4015 Wilson-Har. A CF 3.6 15.99*.054 6.1 0.2 2
4055 Magellan 7.5 Lupishko & Di Martino 1998
4179 Toutatis A 2.7 15.30*.18 130. 1.1 3 T
4197 1982 TA A S 3.4 14.8 *.18 3.540 0.29 3
4341*Poseidon A 2.4 15.6 *.18 6.262 0.08 2 N
4503 Cleobulus M S 2.0 16.02*.18 3.13 0.22 2
4660 Nereus 15.1 Abe et al. AGU abs
4769 Castalia A 1.0 17.8 .134 4.095 1.0 4
4953 1990 MU A 3.7 15.10*.20 14.218 0.68 3
4954*Eric A S 9.0 12.7 *.18 12.056 0.66 3
4957*Brucemurray M 3.1 15.0 *.18 2.892 0.14-0.38 2
5332 1990 DA A S 3.3 14.89*.18 5.803 0.35 3
5587*1990 SB A 6.0 13.6 *.18 5.054 0.8 2 N
5620 1990 OA M 1.3 17.10*.160 5. 1.2 2 *
5646 1990 TR A 4.2 14.50*.160 6.25 0.19 2
5653 1992 WD5 M 2.7 15.4 *.160 4.834 0.85 3
5751 Zao M X 3.2 14.94*.18 21.7 0.04-0.12 1
5797 Bivoj A S .7 18.50*.160 2.706 0.12-0.17 3
5836 1993 MF A 3.1 15.01*.18 4.959 0.53-0.76 3
6037 1988 EG AMBIGUOUS: see radar notebook. 4.27 or 2.76 (latter is favored)
6053*1993 BW3 A 3.3 15.23 .13 2.573 0.1 -0.5 4
6178 1986 DA A 2.0 16.11*.160 3.58 0.32 3
6322 1991 CQ 4.323 Pravec et al., unpublished
6489*Golevka A 0.3 19.07 .6 6.026 0.28-1.03 4
6491 1991 OA 2.69 Lupishko & Di Martino 1998
6569*1993 MO M 1.6 16.5 *.18 5.959 0.98 2
7025*1993 QA A 0.6 18.5 *.18 2.506 0.34 3
7336 1989 RS1 A 0.8 18.0 *.186 6. 0.3 2
7341*1991 VK A 1.3 16.9 *.18 4.210 0.27-0.58 3
7474*1992 TC A 0.9 17.67*.18 5.540 0.07 2
7480*Norwan A 1.1 17.2 *.18 35.90 >0.5 2 N
7482*1994 PC1 A 1.4 16.8 *.18 2.600 0.29 2 N
7822*1991 CS A 1.0 17.4 *.18 2.390 0.29-0.40 3
7888*1993 UC A 2.8 15.27*.18 2.340 0.10 2
7889*1994 LX A 2.7 15.3 *.18 2.741 0.32-0.39 2
8034 1992 LR A S 0.7 18.15*.18 7.283 (3.638)0.46 3 (Pravec et al., unpublished)
8176 1991 WA 8.3 Pravec et al., unpublished
8201 1994 AH2 A 1.6 16.5 *.18 23.949 >0.27 2
9856 1991 EE A 1.2 17.0 *.180 3.045 0.14 3
10115 1992 SK 17.0 7.320 Pravec et al., unpublished
10302 1989 ML 31.8 Ishibashi et al., ACM '99 (value adopted)
19 Weissman et al., DPS '99
1978 CA A S 1.9 16.60 .111 3.756 0.8 3
1989 DA A 0.5 19.08*.18 3.925 0.12 3
1989 UP A 0.23 20.7 *.18 6.98 1.16 3
1989 UQ A 0.5 19.0 *.18 7.733 0.27 2 N
1989 UR ~70
1989 VA A 0.8 18.0 *.18 2.514 0.22-0.40 3
1989 VB A 0.32 19.94*.18 16. >0.32 2
1990 HA A 1.3 16.83*.18 8.55 >0.09 1
1990 KA A 1.1 17.27*.18 6. 0.5 1
1990 UP A 0.26 20.45*.18 20. 0.8 2
*1991 VH A 1.2 17.02*.18 2.624 0.08 2 B
*1992 CC1 A 2.5 15.5 *.18 8.496 1/03 3 N
1992 NA A 2.7 16.50*.058 6.992 0.37 2
*1992 QN A 1.2 17.0 *.18 5.990 1.1 3
1993 BX3 A 0.3 20.78*.12 20.463 0.91 2
*1993 QP M 0.6 18.73*.18 22.05 0.23 1 *
*1993 WD A 1.1 17.33*.18 2.660 0.17 3 *
*1994 AW1 A 1.0 17.5 *.18 2.519 0.10 2 B
*1994 CB A 0.16 21.4 *.18 8.676 0.90 3
*1994 GY M 0.7 18.16*.18 2.555 0.06 2
*1994 LW M 1.3 16.96*.18 29.1 0.28 1 *
1995 EK1 8.444 Lupishko & Di Martino 1998
*1995 FX A 0.3 20.0 *.18 5.3 0.3 2
*1995 HM A 0.10 22.5 *.18 1.62 2.5 2
1995 FJ 9.2 Lupishko & Di Martino 1998
1996 FG3 3.5935 Pravec et al. 1998, IAUC 7074
*1997 BR A 0.8 18.0 *.18 33.64 1.2 3 T
*1997 GH3 A 1.2 17.0 *.18 6.714 0.74 3 N
1997 GL3 7.572 Pravec et al., unpublished
1997 SE5 9.058 Pravec et al., unpublished
1998 BY7 <2 Ostro et al., unpublished
1998 KY26 0.178 Ostro et al. (1999)
1998 ML14 14.98 Hicks et al. 1998 (DPS abs)
1998 WB2 0.317 Whitely et al., unpublished
1999 GU3 212.6 Pravec et al., in prep.
1999 JM8 192 ? Benner et al., in prep.
1999 TY2 0.119 Pravec et al., in prep.
RANKING OF OBJECTS WITH ROTATION PERIODS < 3 HOURS
==================================================
1 1999 TY2 0.119
2 1998 KY26 0.178
3 1998 WB2 0.317
4 1995 HM 1.62
5 1998 BY7 <2
6 1566 Icarus 2.273
7 7888 1993 UC 2.340
8 3122 Florence 2.36
9 7822 1991 CS 2.390
10 2102 Tantalus 2.391
11 1866 Sisyphus 2.48
12 7025 1993 QA 2.506
13 1989 VA 2.514
14 1994 AW1 2.519
15 3554 Amun 2.530
16 1994 GY 2.555
17 6053 1993 BW3 2.573
18 1991 VH 2.624
19 7482 1994 PC1 2.600
20 1993 WD 2.660
21 1917 Cuyo 2.690
6491 1991 OA 2.69
23 3671 Dionysus 2.705
24 5797 Bivoj 2.706
25 7889 1994 LX 2.741
26 1943 Anteros 2.870
27 4957 Brucemurray 2.892
NEAR-EARTH AND MAIN-BELT ASTEROIDS WITH ROTATION PERIODS > 100 HOURS
====================================================================
Diameter Period
Asteroid (km) (h)
-------- -------- ------
288 Glauke 32.21 1150.
1220 Crocus 19.6 737.
253 Mathilde 58.05 417.7
3691 1982 FT 3.3 226.8
1999 JM8 3.5 192 (Benner et al.) or ~336 (Pravec et al.)
1481 Tubingia 33.26 160.
3102 Krok 1.5 147.8
1689 Floris-Jan 14.3 145.
4179 Toutatis 2.7 130.
4558 Janesick 8.7 100.
Lance Benner
Last modified: Fri Oct 22 13:55:08 PDT 1999