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
1996-10-14 01:27:14 C 19 01 59.38 -24 07 52.5 i 711
1996-11-02 18:19:00 C 19 01 02.13 -25 16 57.7 15.1 z 124
1996-11-02 18:23:21 C 19 01 01.85 -25 16 57.5 z 124
1996-11-02 18:27:05 C 19 01 01.71 -25 16 58.7 z 124
1996-11-30 16:41:22 C 13 08 29.04 -18 54 03.1 z 422
1996-11-30 16:42:50 C 13 08 26.80 -18 53 49.2 z 422
1996-11-30 16:48:39 C 13 08 18.07 -18 52 53.8 z 422
1996-11-30 16:50:53 C 13 08 14.72 -18 52 32.8 z 422
1996-11-30 17:23:51 C 13 07 25.07 -18 47 19.2 z 422
1996-11-30 17:26:17 C 13 07 21.40 -18 46 55.8 z 422
1996-12-04 12:10:46 C 11 20 24.38 -04 48 45.4 i 711
1996-12-04 12:14:55 C 11 20 20.58 -04 48 13.5 i 711
1996-12-04 16:23:16 C 11 16 55.33 -04 13 33.9 z 422
1996-12-04 16:24:21 C 11 16 54.36 -04 13 26.0 z 422
1996-12-04 16:25:14 C 11 16 53.60 -04 13 19.3 z 422
1996-12-04 16:26:57 C 11 16 52.11 -04 13 06.8 z 422
1996-12-04 16:29:35 C 11 16 49.86 -04 12 47.2 z 422
1996-12-04 16:32:36 C 11 16 47.24 -04 12 24.8 z 422
1996-12-05 17:15:36 C 10 57 41.80 -01 22 22.9 z 423
1996-12-05 17:25:43 C 10 57 34.27 -01 21 18.8 z 423
1996-12-05 17:33:10 C 10 57 28.76 -01 20 31.7 z 423
1996-12-05 17:35:43 C 10 57 26.88 -01 20 15.4 z 423
1996-12-06 11:43:41 C 10 45 22.26 +00 24 39.1 i 711
1996-12-06 11:47:42 C 10 45 19.58 +00 25 01.6 i 711
1996-12-06 17:45:51 C 10 41 44.72 +00 57 35.5 z 900
1996-12-06 18:26:42 C 10 41 19.03 +01 01 16.6 z 900
1996-12-08 11:25:29 C 10 19 47.35 +04 13 03.2 z 710
1996-12-08 11:28:30 C 10 19 45.84 +04 13 14.8 z 710
1996-12-08 11:31:30 C 10 19 44.37 +04 13 26.4 z 710
1996-12-08 11:34:29 C 10 19 42.96 +04 13 40.1 z 710
1996-12-08 11:37:30 C 10 19 41.44 +04 13 52.3 z 710
1996-12-08 11:40:30 C 10 19 39.93 +04 14 02.5 z 710
1996-12-08 11:43:29 C 10 19 38.48 +04 14 14.8 z 710
1996-12-08 11:46:29 C 10 19 37.07 +04 14 26.1 z 710
1996-12-08 11:49:30 C 10 19 35.52 +04 14 41.0 z 710
1996-12-08 11:52:29 C 10 19 34.09 +04 14 52.8 z 710
1996-12-11 09:24:29 C 09 53 14.97 +08 04 03.5 z 710
1996-12-11 09:33:29 C 09 53 11.89 +08 04 26.9 z 710
1996-12-11 09:37:29 C 09 53 10.54 +08 04 37.7 z 710
1996-12-11 09:42:29 C 09 53 08.83 +08 04 51.9 z 710
1996-12-11 09:48:29 C 09 53 06.84 +08 05 07.5 z 710
1996-12-11 09:53:29 C 09 53 05.19 +08 05 20.7 z 710
1996-12-14 02:16:33 C 09 35 40.75 +10 29 32.7 z 966
1996-12-14 02:21:40 C 09 35 39.44 +10 29 43.2 z 966
1996-12-14 02:25:29 C 09 35 38.46 +10 29 50.5 z 966
1996-12-15 02:24:54 C 09 30 17.32 +11 13 08.2 z 962
1996-12-15 02:34:17 C 09 30 15.13 +11 13 24.1 z 962
1996-12-15 02:44:00 C 09 30 12.88 +11 13 40.9 z 962
1996-12-15 02:53:39 C 09 30 10.61 +11 13 57.3 z 962
1996-12-15 03:03:55 C 09 30 08.19 +11 14 15.0 z 962
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)