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
2025-03-01 05:35:00 C 03 13 59.717 +17 47 36.06 V T08
2025-03-01 05:43:38 C 03 14 01.488 +17 47 43.04 V T08
2025-03-01 06:12:36 C 03 14 07.428 +17 48 06.48 V T08
2025-03-01 17:07:26 C 03 16 22.89 +17 57 00.7 X C40
2025-03-01 17:19:28 C 03 16 25.41 +17 57 10.3 X C40
2025-03-01 17:31:31 C 03 16 27.90 +17 57 20.1 X C40
2025-03-03 05:21:57 C 03 23 50.712 +18 25 50.02 V T05
2025-03-03 05:26:32 C 03 23 51.677 +18 25 53.69 V T05
2025-03-03 05:34:22 C 03 23 53.246 +18 25 59.56 V T05
2025-03-03 05:58:27 C 03 23 58.154 +18 26 17.95 V T05
2025-03-07 17:14:20 C 03 45 45.37 +19 42 56.7 X C40
2025-03-07 17:16:43 C 03 45 45.83 +19 42 58.4 X C40
2025-03-07 17:19:07 C 03 45 46.25 +19 42 59.9 X C40
2025-03-07 17:21:32 C 03 45 46.73 +19 43 01.2 X C40
2025-03-07 17:23:57 C 03 45 47.27 +19 43 02.8 X C40
2025-03-07 17:26:20 C 03 45 47.75 +19 43 04.0 X C40
2025-03-07 17:31:09 C 03 45 48.69 +19 43 08.5 X C40
2025-03-07 17:35:41 C 03 45 49.60 +19 43 10.0 X C40
2025-03-07 17:40:06 C 03 45 50.44 +19 43 13.0 X C40
2025-03-08 06:13:59 C 03 48 21.434 +19 51 26.10 V T05
2025-03-08 06:19:17 C 03 48 22.548 +19 51 29.52 V T05
2025-03-08 06:27:13 C 03 48 24.132 +19 51 34.45 V T05
2025-03-08 06:43:55 C 03 48 27.449 +19 51 45.40 V T05
2025-03-09 04:07:15 C 03 52 43.597 +20 05 12.70 V V00
2025-03-09 04:15:19 C 03 52 45.192 +20 05 17.63 V V00
2025-03-09 04:23:24 C 03 52 46.794 +20 05 22.56 V V00
2025-03-09 04:31:28 C 03 52 48.392 +20 05 27.49 V V00
2025-03-09 05:56:36 C 03 53 05.407 +20 06 22.50 V T08
2025-03-09 06:01:15 C 03 53 06.290 +20 06 25.45 V T08
2025-03-09 06:10:43 C 03 53 08.167 +20 06 31.03 V T08
2025-03-09 06:25:19 C 03 53 11.090 +20 06 40.14 V T08
2025-03-09 18:20:59 C 03 55 33.25 +20 13 53.4 X C40
2025-03-09 18:24:40 C 03 55 34.00 +20 13 55.4 X C40
2025-03-09 18:28:20 C 03 55 34.75 +20 13 57.4 X C40
2025-03-09 18:32:00 C 03 55 35.47 +20 13 59.0 X C40
2025-03-09 18:35:41 C 03 55 36.24 +20 14 01.7 X C40
2025-03-09 18:43:01 C 03 55 37.65 +20 14 06.7 X C40
2025-03-09 18:46:41 C 03 55 38.34 +20 14 07.7 X C40
2025-03-09 18:54:02 C 03 55 39.83 +20 14 13.1 X C40
2025-03-09 18:57:43 C 03 55 40.49 +20 14 14.8 X C40
2025-03-10 03:59:19 C 03 57 27.832 +20 19 40.33 V 703
2025-03-10 04:02:35 C 03 57 28.433 +20 19 42.56 V 703
2025-03-10 04:05:50 C 03 57 29.066 +20 19 44.72 V 703
2025-03-10 04:09:06 C 03 57 29.660 +20 19 46.27 V 703
2025-03-10 06:03:19 C 03 57 52.339 +20 20 56.15 V T08
2025-03-10 06:07:59 C 03 57 53.242 +20 20 58.45 V T08
2025-03-10 06:16:05 C 03 57 54.859 +20 21 03.42 V T08
2025-03-10 06:25:25 C 03 57 56.688 +20 21 08.60 V T08
2025-03-10 06:30:44 C 03 57 57.725 +20 21 11.70 V T08
2025-03-10 06:48:38 C 03 58 01.255 +20 21 22.10 V T08
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)