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
2024-11-16 02:45:28 C 00 14 31.133 -34 12 42.19 V W68
2024-11-16 20:06:30 C 00 13 31.123 -34 02 31.92 V M22
2024-11-16 20:10:32 C 00 13 30.876 -34 02 29.69 V M22
2024-11-16 20:20:31 C 00 13 30.288 -34 02 23.57 V M22
2024-11-16 20:35:15 C 00 13 29.424 -34 02 14.68 V M22
2024-11-17 20:12:40 C 00 12 10.373 -33 47 59.50 V M22
2024-11-17 20:16:50 C 00 12 10.152 -33 47 57.16 V M22
2024-11-17 20:24:19 C 00 12 09.713 -33 47 52.62 V M22
2024-11-17 20:38:57 C 00 12 08.890 -33 47 43.30 V M22
2024-11-20 02:09:54 C 00 09 21.665 -33 13 50.81 V W68
2024-11-20 02:13:09 C 00 09 21.530 -33 13 48.40 V W68
2024-11-20 02:14:33 C 00 09 21.444 -33 13 47.82 V W68
2024-11-20 02:17:56 C 00 09 21.269 -33 13 45.34 V W68
2024-11-20 02:23:12 C 00 09 21.017 -33 13 41.45 V W68
2024-11-20 02:41:12 C 00 09 20.083 -33 13 30.04 V W68
2024-11-20 19:55:09 C 00 08 29.796 -33 02 08.20 V M22
2024-11-20 19:59:46 C 00 08 29.563 -33 02 05.68 V M22
2024-11-20 20:10:54 C 00 08 29.062 -33 01 57.76 V M22
2024-11-20 20:27:46 C 00 08 28.176 -33 01 46.52 V M22
2024-11-20 20:29:03 C 00 08 28.118 -33 01 45.66 V M22
2024-11-21 06:06:14 C 00 08 01.069 -32 55 25.59 X F51
2024-11-21 06:20:28 C 00 08 00.369 -32 55 16.03 X F51
2024-11-21 06:34:40 C 00 07 59.666 -32 55 06.47 X F51
2024-11-21 06:48:54 C 00 07 58.969 -32 54 56.89 X F51
2024-11-21 19:30:23 C 00 07 23.693 -32 46 15.24 V M22
2024-11-21 19:47:48 C 00 07 22.882 -32 46 03.07 V M22
2024-11-21 19:52:33 C 00 07 22.646 -32 45 59.90 V M22
2024-11-21 19:59:57 C 00 07 22.291 -32 45 54.90 V M22
2024-11-23 01:55:30 C 00 06 03.005 -32 25 13.01 V W68
2024-11-23 02:00:03 C 00 06 02.808 -32 25 09.66 V W68
2024-11-23 02:11:20 C 00 06 02.290 -32 25 01.85 V W68
2024-11-23 02:25:52 C 00 06 01.651 -32 24 51.26 V W68
2024-11-24 02:11:40 C 00 05 02.429 -32 07 59.77 V W68
2024-11-24 02:16:13 C 00 05 02.182 -32 07 56.50 V W68
2024-11-24 02:28:41 C 00 05 01.680 -32 07 47.64 V W68
2024-11-24 02:59:15 C 00 05 00.394 -32 07 25.18 V W68
2024-11-24 19:55:10 C 00 04 20.321 -31 55 10.96 V M22
2024-11-24 19:55:49 C 00 04 20.280 -31 55 10.74 V M22
2024-11-24 19:59:45 C 00 04 20.124 -31 55 07.61 V M22
2024-11-24 20:00:24 C 00 04 20.112 -31 55 07.50 V M22
2024-11-24 20:09:40 C 00 04 19.721 -31 55 00.70 V M22
2024-11-24 20:10:19 C 00 04 19.694 -31 55 00.16 V M22
2024-11-24 20:24:51 C 00 04 19.094 -31 54 49.32 V M22
2024-11-24 20:26:09 C 00 04 19.070 -31 54 48.46 V M22
2024-11-27 01:39:38 C 00 02 23.539 -31 15 13.07 V W68
2024-11-27 01:50:57 C 00 02 23.114 -31 15 04.25 V W68
2024-11-27 01:56:15 C 00 02 22.898 -31 14 59.89 V W68
2024-11-27 02:12:44 C 00 02 22.339 -31 14 47.80 V W68
2024-11-28 01:25:27 C 00 01 37.027 -30 57 00.72 V W68
2024-11-28 01:32:52 C 00 01 36.761 -30 56 55.32 V W68
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)