4953 (1990 MU)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar ⇩ Gaia
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6574752439 ± 6.44e-09
Semi-major axis (a)1.6214443779 AU ± 4.95e-10
Inclination (i)24.37896137° ± 7.77e-07
Long. of Asc. Node (Ω)77.52718564° ± 2.04e-06
Arg. of Perihelion (ω)77.92579270° ± 1.99e-06
Mean Anomaly (M)115.97675053° ± 1.07e-06
Mean Motion (n)0.4773744745°/day ± 2.19e-10
Perihelion dist (q)0.55538484 AU ± 1.04e-08
Aphelion dist (Q)2.68750392 AU ± 1.05e-08
Orbital Period2.06468158 yr ± 9.46e-10
Physical Parameters
H (abs. magnitude)14.88
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.179″
Uncertainty0
Orbit TypeApollo
MOID0.024785 AU
Observations Used2821
Radar Obs Used2
Gaia Obs Used92
Oppositions22
Arc Total1974-2025
First Observation Used1974-07-21
Last Observation Used2025-09-17
Observations (3883)
Date Type RA Dec Mag Band Observatory
2024-11-28 01:38:45 C 00 01 36.583 -30 56 50.57 V W68
2024-11-28 01:59:17 C 00 01 35.902 -30 56 34.73 V W68
2024-11-28 19:32:24 C 00 01 03.665 -30 42 55.76 V M22
2024-11-28 19:36:59 C 00 01 03.502 -30 42 52.34 V M22
2024-11-28 19:46:57 C 00 01 03.187 -30 42 44.39 V M22
2024-11-28 20:01:01 C 00 01 02.746 -30 42 33.23 V M22
2024-11-29 19:59:45 C 00 00 21.466 -30 23 39.19 V M22
2024-11-29 20:04:21 C 00 00 21.326 -30 23 35.30 V M22
2024-11-29 20:13:00 C 00 00 21.065 -30 23 28.61 V M22
2024-11-29 20:27:34 C 00 00 20.657 -30 23 16.55 V M22
2024-12-01 01:42:34 C 23 59 34.673 -29 59 49.49 V W68
2024-12-01 01:47:43 C 23 59 34.524 -29 59 45.28 V W68
2024-12-01 01:56:20 C 23 59 34.298 -29 59 38.33 V W68
2024-12-01 02:14:51 C 23 59 33.814 -29 59 23.28 V W68
2024-12-02 20:00:36 C 23 58 36.166 -29 25 09.91 V M22
2024-12-02 20:05:12 C 23 58 36.060 -29 25 05.95 V M22
2024-12-02 20:53:04 C 23 58 34.975 -29 24 25.96 V M22
2024-12-02 21:01:03 C 23 58 34.814 -29 24 19.44 V M22
2024-12-03 18:54:45 C 23 58 08.582 -29 06 04.10 V M22
2024-12-03 18:59:18 C 23 58 08.479 -29 06 00.32 V M22
2024-12-03 19:08:10 C 23 58 08.294 -29 05 53.05 V M22
2024-12-03 19:22:51 C 23 58 07.992 -29 05 40.42 V M22
2024-12-05 00:59:09 C 23 57 36.346 -28 40 38.46 V W68
2024-12-05 01:03:46 C 23 57 36.274 -28 40 34.57 V W68
2024-12-05 01:13:06 C 23 57 36.084 -28 40 26.33 V W68
2024-12-05 01:29:29 C 23 57 35.796 -28 40 12.43 V W68
2024-12-06 01:07:46 C 23 57 13.798 -28 19 56.86 V W68
2024-12-06 01:12:25 C 23 57 13.730 -28 19 52.54 V W68
2024-12-06 01:21:46 C 23 57 13.562 -28 19 44.40 V W68
2024-12-06 01:36:24 C 23 57 13.313 -28 19 32.27 V W68
2024-12-06 01:37:41 C 23 57 13.308 -28 19 30.94 V W68
2024-12-06 18:48:14 C 23 56 59.189 -28 04 38.71 V M22
2024-12-06 19:02:23 C 23 56 58.990 -28 04 26.51 V M22
2024-12-06 19:09:02 C 23 56 58.889 -28 04 20.50 V M22
2024-12-06 19:16:52 C 23 56 58.778 -28 04 13.80 V M22
2024-12-09 01:49:11 C 23 56 23.402 -27 16 15.82 V W68
2024-12-09 01:53:45 C 23 56 23.386 -27 16 11.86 V W68
2024-12-09 02:03:49 C 23 56 23.258 -27 16 02.68 V W68
2024-12-09 02:19:35 C 23 56 23.105 -27 15 48.56 V W68
2024-12-10 01:01:32 C 23 56 12.809 -26 55 31.51 V W68
2024-12-10 01:06:49 C 23 56 12.754 -26 55 26.76 V W68
2024-12-10 01:14:42 C 23 56 12.677 -26 55 19.42 V W68
2024-12-10 01:29:20 C 23 56 12.559 -26 55 06.38 V W68
2024-12-10 18:54:25 C 23 56 06.271 -26 39 24.88 V M22
2024-12-10 19:00:16 C 23 56 06.281 -26 39 19.12 V M22
2024-12-10 19:08:04 C 23 56 06.199 -26 39 11.84 V M22
2024-12-10 19:23:14 C 23 56 06.134 -26 38 57.80 V M22
2024-12-11 19:57:14 C 23 55 59.561 -26 16 39.58 V M22
2024-12-11 20:01:50 C 23 55 59.546 -26 16 34.43 V M22
2024-12-11 20:23:30 C 23 55 59.400 -26 16 14.81 V M22
Radar Observations (4)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
1994-05-27 17:00:00 217197.3 5.5 Hz 8510 -14 -14
1994-05-27.708333 21719730 200 Hz 8510 253 253
1994-05-28 14:00:00 158792.8 5.5 Hz 8510 -14 -14
1994-05-28.583333 15879280 200 Hz 8510 253 253
Station codes
-14 DSS-14 Goldstone (70-m)