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
2025-02-08 02:53:38 C 01 27 19.674 +08 48 23.33 V 703
2025-02-08 16:43:19 B 01 30 13.84 +09 05 35.1 X L76
2025-02-08 16:59:24 B 01 30 17.19 +09 05 54.1 X L76
2025-02-08 17:15:29 B 01 30 20.57 +09 06 14.4 X L76
2025-02-10 05:46:26 C 01 38 01.116 +09 51 20.52 V T05
2025-02-10 05:51:02 C 01 38 02.078 +09 51 26.24 V T05
2025-02-10 05:58:57 C 01 38 03.730 +09 51 35.86 V T05
2025-02-10 06:14:45 C 01 38 07.034 +09 51 55.01 V T05
2025-02-10 06:28:55 C 01 38 10.001 +09 52 12.11 V T08
2025-02-10 06:33:35 C 01 38 10.963 +09 52 17.90 V T08
2025-02-10 06:41:35 C 01 38 12.636 +09 52 27.80 V T08
2025-02-12 05:56:24 C 01 48 10.550 +10 49 36.08 V T05
2025-02-12 06:20:43 C 01 48 15.634 +10 50 04.88 V T05
2025-02-12 06:25:18 C 01 48 16.586 +10 50 10.64 V T05
2025-02-12 06:33:10 C 01 48 18.235 +10 50 19.93 V T05
2025-02-12 06:40:23 C 01 48 19.742 +10 50 28.46 V T05
2025-02-12 07:08:46 C 01 48 25.723 +10 51 02.12 V T05
2025-02-12 07:21:16 C 01 48 28.354 +10 51 16.85 V T05
2025-02-14 05:35:36 C 01 58 15.002 +11 45 47.41 V T05
2025-02-14 05:43:28 C 01 58 16.637 +11 45 56.66 V T05
2025-02-14 05:48:05 C 01 58 17.604 +11 46 02.03 V T05
2025-02-14 06:05:14 C 01 58 21.242 +11 46 21.94 V T05
2025-02-16 03:57:05 C 02 08 03.635 +12 38 51.83 V 703
2025-02-16 04:03:46 C 02 08 05.075 +12 38 58.70 V 703
2025-02-16 04:07:07 C 02 08 05.852 +12 39 02.74 V 703
2025-02-17 02:58:21 C 02 12 56.203 +13 04 36.23 V 703
2025-02-17 03:01:19 C 02 12 56.873 +13 04 39.54 V 703
2025-02-17 03:04:17 C 02 12 57.467 +13 04 42.92 V 703
2025-02-17 03:07:14 C 02 12 58.108 +13 04 45.59 V 703
2025-02-18 03:46:32 C 02 18 11.300 +13 31 51.24 V 703
2025-02-18 03:49:53 C 02 18 12.010 +13 31 54.30 V 703
2025-02-18 03:53:13 C 02 18 12.704 +13 31 58.01 V 703
2025-02-18 03:56:34 C 02 18 13.417 +13 32 01.50 V 703
2025-02-18 06:04:14 C 02 18 40.450 +13 34 22.44 V T05
2025-02-18 06:28:41 C 02 18 45.600 +13 34 49.08 V T05
2025-02-18 06:33:24 C 02 18 46.598 +13 34 53.98 V T05
2025-02-18 06:50:34 C 02 18 50.218 +13 35 12.41 V T05
2025-02-22 03:34:15 C 02 38 26.066 +15 12 02.09 V 703
2025-02-22 03:37:36 C 02 38 26.855 +15 12 03.20 V 703
2025-02-22 03:40:57 C 02 38 27.517 +15 12 06.41 V 703
2025-02-22 03:44:18 C 02 38 28.241 +15 12 09.90 V 703
2025-02-22 18:00:06 B 02 41 28.761 +15 26 21.59 W L92
2025-02-22 18:10:19 B 02 41 30.948 +15 26 30.02 W L92
2025-02-22 18:20:31 B 02 41 33.107 +15 26 38.54 W L92
2025-02-23 05:48:23 C 02 43 57.775 +15 37 57.22 V T05
2025-02-23 05:52:24 C 02 43 58.601 +15 38 00.92 V T05
2025-02-23 06:16:25 C 02 44 03.629 +15 38 24.18 V T05
2025-02-24 03:23:06 C 02 48 30.017 +15 58 44.26 V 703
2025-02-24 03:26:25 C 02 48 30.629 +15 58 47.24 V 703
2025-02-24 03:29:43 C 02 48 31.360 +15 58 50.41 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)