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
2024-10-11 03:51:29 C 01 27 47.474 -35 50 12.52 V W68
2024-10-11 03:58:48 C 01 27 46.817 -35 50 15.58 V W68
2024-10-11 04:06:11 C 01 27 46.133 -35 50 18.53 V W68
2024-10-11 19:45:44 C 01 26 22.332 -35 56 18.96 V M22
2024-10-11 19:49:46 C 01 26 21.994 -35 56 20.44 V M22
2024-10-11 19:57:20 C 01 26 21.307 -35 56 23.75 V M22
2024-10-11 20:11:59 C 01 26 19.963 -35 56 29.40 V M22
2024-10-11 20:57:49 C 01 26 15.746 -35 56 46.90 V M22
2024-10-11 21:00:25 C 01 26 15.509 -35 56 47.83 V M22
2024-10-11 21:05:41 C 01 26 15.034 -35 56 49.88 V M22
2024-10-11 21:48:54 C 01 26 11.045 -35 57 06.12 V M22
2024-10-12 21:18:19 C 01 24 03.682 -36 05 36.42 V M22
2024-10-12 21:20:55 C 01 24 03.413 -36 05 37.79 V M22
2024-10-12 21:26:09 C 01 24 02.926 -36 05 39.26 V M22
2024-10-12 21:34:06 C 01 24 02.150 -36 05 42.04 V M22
2024-10-18 04:12:27 C 01 12 15.420 -36 40 52.32 V W68
2024-10-18 04:20:14 C 01 12 14.650 -36 40 54.16 V W68
2024-10-18 04:35:32 C 01 12 13.128 -36 40 57.14 V W68
2024-10-18 04:39:35 C 01 12 12.773 -36 40 57.86 V W68
2024-10-19 04:05:18 C 01 09 59.741 -36 45 23.22 V W68
2024-10-19 04:52:45 C 01 09 55.133 -36 45 31.50 V W68
2024-10-19 04:57:18 C 01 09 54.674 -36 45 32.62 V W68
2024-10-19 05:07:55 C 01 09 53.657 -36 45 34.13 V W68
2024-10-22 04:49:35 C 01 03 05.011 -36 54 51.01 V W68
2024-10-22 04:54:27 C 01 03 04.505 -36 54 51.52 V W68
2024-10-22 05:01:50 C 01 03 03.799 -36 54 51.91 V W68
2024-10-22 05:16:16 C 01 03 02.402 -36 54 53.06 V W68
2024-10-23 04:17:46 C 01 00 51.415 -36 56 30.08 V W68
2024-10-23 04:22:20 C 01 00 51.010 -36 56 30.30 V W68
2024-10-23 04:30:30 C 01 00 50.213 -36 56 30.70 V W68
2024-10-23 04:45:53 C 01 00 48.715 -36 56 31.60 V W68
2024-10-23 19:20:41 C 00 59 26.340 -36 57 10.76 V M22
2024-10-23 19:23:58 C 00 59 26.040 -36 57 10.62 V M22
2024-10-23 19:28:31 C 00 59 25.594 -36 57 10.98 V M22
2024-10-23 19:36:22 C 00 59 24.842 -36 57 11.41 V M22
2024-10-24 21:54:01 C 00 56 55.682 -36 57 42.66 V M22
2024-10-24 22:45:12 C 00 56 50.748 -36 57 42.41 V M22
2024-10-24 22:49:45 C 00 56 50.316 -36 57 42.23 V M22
2024-10-24 22:59:53 C 00 56 49.330 -36 57 42.48 V M22
2024-10-26 21:40:37 C 00 52 27.595 -36 56 24.43 V M22
2024-10-26 21:46:00 C 00 52 27.130 -36 56 23.93 V M22
2024-10-26 21:54:34 C 00 52 26.258 -36 56 23.60 V M22
2024-10-29 10:57:01 B 00 46 50.58 -36 50 32.0 q Q73
2024-10-29 11:04:50 B 00 46 49.85 -36 50 31.0 q Q73
2024-10-29 11:12:40 B 00 46 49.12 -36 50 30.0 q Q73
2024-10-30 04:26:28 C 00 45 15.634 -36 48 00.25 V W68
2024-10-30 04:30:31 C 00 45 15.262 -36 47 59.32 V W68
2024-10-30 04:41:09 C 00 45 14.292 -36 47 57.84 V W68
2024-10-30 04:56:41 C 00 45 12.876 -36 47 55.32 V W68
2024-10-30 21:38:27 C 00 43 43.594 -36 45 08.78 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)