4179 Toutatis (1989 AC)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar ⇩ Gaia
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6247403187 ± 2.00e+00
Semi-major axis (a)2.5430298482 AU ± 3.00e+00
Inclination (i)0.44808312° ± 4.00e+00
Long. of Asc. Node (Ω)125.36620064° ± 5.00e+00
Arg. of Perihelion (ω)277.86046506° ± 6.00e+00
Mean Anomaly (M)76.89344252° ± 4.67e-07
Mean Motion (n)0.2430441038°/day ± 4.30e-01
Perihelion dist (q)0.95429657 AU ± 5.21e+00
Aphelion dist (Q)4.13176313 AU ± 7.04e+00
Orbital Period4.05533921 yr ± 7.18e+00
NGA Modelg(r)
A12.91030472e-04 AU/d²
A2-4.49990093e-07 AU/d²
Physical Parameters
H (abs. magnitude)15.29
G (slope)0.15
Alternative Designations

1934 CT

Orbit Solution
SourceIAA
Solution Date2026-04-26
RMS Residual0.347″
Uncertainty0
Orbit TypeApollo
MOID0.006536 AU
Observations Used6547
Radar Obs Used38
Gaia Obs Used37
Oppositions63
Arc Total1934-2017
First Observation Used1976-05-27
Last Observation Used2026-03-20
Observations (7141)
Date Type RA Dec Mag Band Observatory
2024-12-17 01:15:08 C 21 31 24.619 -15 02 48.77 V W68
2024-12-20 04:43:23 C 21 43 21.708 -14 04 17.90 V T05
2024-12-20 04:47:58 C 21 43 22.433 -14 04 14.27 V T05
2024-12-20 04:55:48 C 21 43 23.647 -14 04 07.61 V T05
2024-12-20 05:10:49 C 21 43 26.026 -14 03 55.66 V T05
2024-12-24 01:27:18 C 21 58 24.542 -12 46 37.24 V 703
2024-12-24 01:30:42 C 21 58 25.129 -12 46 34.61 V 703
2024-12-24 01:34:05 C 21 58 25.640 -12 46 31.12 V 703
2024-12-24 01:37:28 C 21 58 26.177 -12 46 28.09 V 703
2024-12-26 01:42:43 C 22 06 23.886 -12 03 41.87 V 703
2024-12-26 01:46:06 C 22 06 24.408 -12 03 39.24 V 703
2024-12-26 01:49:28 C 22 06 25.009 -12 03 36.54 V 703
2024-12-26 01:52:51 C 22 06 25.528 -12 03 33.59 V 703
2024-12-28 05:27:56 C 22 15 05.134 -11 15 46.44 V T05
2024-12-28 05:31:57 C 22 15 05.813 -11 15 42.44 V T05
2024-12-28 05:39:17 C 22 15 07.042 -11 15 35.50 V T05
2024-12-28 05:55:58 C 22 15 09.847 -11 15 19.55 V T05
2025-01-09 05:00:53 C 23 05 37.238 -06 15 25.70 V T05
2025-01-09 05:11:21 C 23 05 39.137 -06 15 13.86 V T05
2025-01-09 05:15:57 C 23 05 39.965 -06 15 08.78 V T05
2025-01-09 05:30:28 C 23 05 42.583 -06 14 52.22 V T05
2025-01-12 01:39:23 C 23 18 14.562 -04 55 55.27 V G96
2025-01-12 01:42:03 C 23 18 15.070 -04 55 51.82 V 703
2025-01-12 01:45:29 C 23 18 15.685 -04 55 48.00 V 703
2025-01-12 01:46:51 C 23 18 15.937 -04 55 46.52 V G96
2025-01-12 01:48:55 C 23 18 16.326 -04 55 44.04 V 703
2025-01-12 01:52:21 C 23 18 16.952 -04 55 40.08 V 703
2025-01-12 01:58:35 C 23 18 18.090 -04 55 32.63 V G96
2025-01-12 02:06:05 C 23 18 19.472 -04 55 23.74 V G96
2025-01-13 02:09:37 C 23 22 47.874 -04 26 53.45 V 703
2025-01-13 02:12:57 C 23 22 48.515 -04 26 49.45 V 703
2025-01-13 02:16:17 C 23 22 49.156 -04 26 45.17 V 703
2025-01-13 02:19:38 C 23 22 49.750 -04 26 40.96 V 703
2025-01-13 04:59:08 C 23 23 19.536 -04 23 29.80 V T05
2025-01-13 05:01:06 C 23 23 19.894 -04 23 27.28 V T05
2025-01-13 05:03:42 C 23 23 20.371 -04 23 24.04 V T05
2025-01-13 05:05:39 C 23 23 20.750 -04 23 21.59 V T05
2025-01-13 05:16:08 C 23 23 22.678 -04 23 09.64 V T05
2025-01-13 05:16:48 C 23 23 22.788 -04 23 08.45 V T05
2025-01-13 05:30:35 C 23 23 25.370 -04 22 52.43 V T05
2025-01-13 05:31:15 C 23 23 25.457 -04 22 50.95 V T05
2025-01-13 17:45:42 C 23 25 42.962 -04 08 16.76 Z C23
2025-01-13 18:19:09 C 23 25 49.174 -04 07 37.60 Z C23
2025-01-15 05:12:00 C 23 32 22.524 -03 25 23.38 V T08
2025-01-15 05:24:35 C 23 32 24.876 -03 25 08.04 V T08
2025-01-15 05:31:14 C 23 32 26.114 -03 25 00.16 V T08
2025-01-15 05:48:28 C 23 32 29.350 -03 24 39.24 V T08
2025-01-19 01:58:14 C 23 50 04.848 -01 30 36.43 V 703
2025-01-19 02:01:13 C 23 50 05.424 -01 30 33.44 V 703
2025-01-19 02:04:12 C 23 50 05.989 -01 30 29.02 V 703
Radar Observations (100)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
1992-11-27 22:20:00 613910.6 1 Hz 8510 -14 -14
1992-11-27 23:40:00 71249152 10 us 8510 -14 -14
1992-11-27.930556 61391060 100 Hz 8510 253 253
1992-11-27.986111 7124915200 10000 us 8510 253 253
1992-12-02 21:40:00 523514.76 0.52 Hz 8510 -14 -14
1992-12-02.902778 4218031212 650 us 8510 253 253
1992-12-03 19:30:00 37450923.337 1.44 us 8510 -14 -14
1992-12-03 19:30:00 494766.019 0.28 Hz 8510 -14 -14
1992-12-03.812500 3745092334 1440 us 8510 253 253
1992-12-04 18:10:00 32975711.079 1.64 us 8510 -14 -14
1992-12-04 18:10:00 443775.732 0.32 Hz 8510 -14 -14
1992-12-04.756944 3297571108 1640 us 8510 253 253
1992-12-05 17:30:00 29027804.001 1.2 us 8510 -14 -14
1992-12-05 17:30:00 362243.902 0.24 Hz 8510 -14 -14
1992-12-05.729167 2902780400 1200 us 8510 253 253
1992-12-06 16:40:00 26056497.203 0.92 us 8510 -13 -14
1992-12-06 16:40:00 248335.943 0.16 Hz 8510 -13 -14
1992-12-06.694444 2605649720 920 us 8510 253 252
1992-12-07 17:20:00 24307305.745 2.44 us 8510 -13 -14
1992-12-07.722222 2430730575 2440 us 8510 253 252
1992-12-08 14:40:00 24202819.27 0.48 us 8510 -14 -14
1992-12-08 14:40:00 -58768.687 0.08 Hz 8510 -14 -14
1992-12-08.611111 2420281927 480 us 8510 253 253
1992-12-09 17:30:00 25938862.116 1.36 us 8510 -14 -14
1992-12-09 17:30:00 -250054.867 0.24 Hz 8510 -14 -14
1992-12-09.729167 2593886212 1360 us 8510 253 253
1992-12-10 17:00:00 28867565.808 1.52 us 8510 -14 -14
1992-12-10 17:00:00 -364551.377 0.28 Hz 8510 -14 -14
1992-12-10.708333 2886756581 1520 us 8510 253 253
1992-12-11 09:40:00 31542082.782 1.36 us 8510 -14 -14
1992-12-11 09:40:00 -389322.673 0.24 Hz 8510 -14 -14
1992-12-11.402778 3154208278 1360 us 8510 253 253
1992-12-12 09:20:00 35939781.859 1.28 us 8510 -14 -14
1992-12-12 09:20:00 -450249.232 0.24 Hz 8510 -14 -14
1992-12-12.388889 3593978186 1280 us 8510 253 253
1992-12-13 08:10:00 40664482.454 1.64 us 8510 -14 -14
1992-12-13 08:10:00 -487485.645 0.32 Hz 8510 -14 -14
1992-12-13.340278 4066448245 1640 us 8510 253 253
1992-12-14 07:50:00 45891287.505 1.92 us 8510 -14 -14
1992-12-14 07:50:00 -515942.546 1.92 Hz 8510 -14 -14
1992-12-14.326389 4589128751 1920 us 8510 253 253
1992-12-15 07:50:00 51433656.661 2.36 us 8510 -14 -14
1992-12-15 07:50:00 -537151.849 0.44 Hz 8510 -14 -14
1992-12-15.326389 5143365666 2360 us 8510 253 253
1992-12-16 07:10:00 56997841.703 3.2 us 8510 -14 -14
1992-12-16 07:10:00 -550720.993 0.64 Hz 8510 -14 -14
1992-12-16.298611 5699784170 3200 us 8510 253 253
1992-12-17 06:50:00 62767761.168 3.36 us 8510 -14 -14
1992-12-17 06:50:00 -561924.364 0.64 Hz 8510 -14 -14
1992-12-17 08:00:00 63030108.88 4.52 us 2380 -1 -1
1992-12-17.284722 6276776117 3360 us 8510 253 253
1992-12-17.333333 6303010888 4520 us 2380 251 251
1992-12-18 07:10:00 68800974.112 1.88 us 8510 -14 -14
1992-12-18 07:10:00 -572657.338 0.36 Hz 8510 -14 -14
1992-12-18 08:00:00 68989080.84 4.52 us 2380 -1 -1
1992-12-18.298611 6880097411 1880 us 8510 253 253
1992-12-18.333333 6898908084 4520 us 2380 251 251
1992-12-19 07:40:00 74948572.01 4.52 us 2380 -1 -1
1992-12-19 07:40:00 -167522.91 0.24 Hz 2380 -1 -1
1992-12-19.319444 7494857201 4520 us 2380 251 251
1996-11-25 19:50:00 335217.755 0.07 Hz 8510 -13 -14
1996-11-25.826389 33521776 7 Hz 8510 253 252
1996-11-26.750000 4012841509 500 us 8510 253 252
1996-11-27 17:50:00 206061.474 0.07 Hz 8510 -13 -14
1996-11-27.743056 20606147 7 Hz 8510 253 252
1996-11-28 17:30:00 117850.312 0.07 Hz 8510 -13 -14
1996-11-28.729167 11785031 7 Hz 8510 253 252
1996-11-29 15:40:00 36193.593 0.07 Hz 8510 -13 -14
1996-11-29.652778 3619359 7 Hz 8510 253 252
1996-11-30 14:40:00 -54016.239 0.07 Hz 8510 -13 -14
1996-11-30.611111 -5401624 7 Hz 8510 253 252
1996-12-01 13:20:00 -135658.745 0.07 Hz 8510 -13 -14
1996-12-01.555556 -13565874 7 Hz 8510 253 252
1996-12-02 13:10:00 -216056.675 0.07 Hz 8510 -13 -14
1996-12-02.548611 -21605667 7 Hz 8510 253 252
1996-12-03 12:10:00 -276563.595 0.07 Hz 8510 -13 -14
1996-12-03.506944 -27656359 7 Hz 8510 253 252
2000-11-02 18:10:00 -114782.5 0.6 Hz 8560 -14 -14
2000-11-02.756944 -11478250 60 Hz 8560 253 253
2004-10-09 13:36:00 64484452.1 0.9 us 2380 -1 -1
2004-10-09.566667 6448445210 900 us 2380 251 251
2008-11-23.458333 8922229990 2000 us 2380 251 251
2012-12-04 03:30:00 71954861.33 4 us 8560 -14 -14
2012-12-04.145833 7195486133 4000 us 8560 253 253
2012-12-06 04:30:00 62051487.94 2.5 us 8560 -14 -14
2012-12-06.187500 6205148794 2500 us 8560 253 253
2012-12-07 04:40:00 57734632.83 3 us 8560 -14 -14
2012-12-07.194444 5773463283 3000 us 8560 253 253
2012-12-08 03:00:00 54185818.93 3 us 8560 -14 -14
2012-12-08.125000 5418581893 3000 us 8560 253 253
2012-12-09 03:50:00 50873215.22 3 us 8560 -14 -14
2012-12-10 03:10:00 48477666.13 3 us 8560 -14 -14
2012-12-14 09:10:00 48440142.08 2.5 us 8560 -14 -14
2012-12-15 03:00:00 50202493.37 2.5 us 8560 -14 -14
2016-12-27 03:50:00 251784887 8 us 8560 -14 -14
2016-12-27 22:09:00 251186454.04 2 us 2380 -1 -1
2016-12-28 22:19:00 250739924.13 2 us 2380 -1 -1
2016-12-29 22:03:00 250676054.21 2 us 2380 -1 -1
2017-01-07 22:52:00 267803347.48 2 us 2380 -1 -1
2017-01-07 23:15:00 267861144.35 2 us 2380 -1 -1
Station codes
-14 DSS-14 Goldstone (70-m) -13 DSS-13 Goldstone (34-m) -1 Arecibo (305-m, 1963–2020)