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
2024-10-30 21:43:05 C 00 43 43.159 -36 45 08.10 V M22
2024-10-30 21:50:59 C 00 43 42.442 -36 45 06.48 V M22
2024-10-30 22:40:02 C 00 43 37.990 -36 44 57.59 V M22
2024-10-31 21:15:50 C 00 41 38.590 -36 40 38.28 V M22
2024-10-31 21:20:23 C 00 41 38.167 -36 40 36.95 V M22
2024-10-31 21:30:54 C 00 41 37.234 -36 40 34.90 V M22
2024-10-31 21:47:02 C 00 41 35.777 -36 40 31.44 V M22
2024-11-03 02:40:32 C 00 37 03.000 -36 27 58.18 V W68
2024-11-03 02:45:11 C 00 37 02.590 -36 27 57.20 V W68
2024-11-03 02:57:30 C 00 37 01.526 -36 27 53.89 V W68
2024-11-03 03:11:33 C 00 37 00.319 -36 27 50.08 V W68
2024-11-04 02:31:51 C 00 35 03.391 -36 21 13.86 V W68
2024-11-04 02:42:33 C 00 35 02.467 -36 21 11.05 V W68
2024-11-04 02:47:14 C 00 35 02.074 -36 21 09.61 V W68
2024-11-04 03:32:57 C 00 34 58.174 -36 20 55.90 V W68
2024-11-07 02:33:49 C 00 29 16.841 -35 56 59.96 V W68
2024-11-07 02:37:59 C 00 29 16.500 -35 56 58.60 V W68
2024-11-07 02:47:22 C 00 29 15.761 -35 56 55.25 V W68
2024-11-07 03:34:29 C 00 29 12.010 -35 56 37.36 V W68
2024-11-08 02:14:55 C 00 27 28.126 -35 47 48.23 V W68
2024-11-08 02:21:05 C 00 27 27.662 -35 47 45.74 V W68
2024-11-08 03:11:29 C 00 27 23.722 -35 47 25.37 V W68
2024-11-08 03:19:58 C 00 27 23.071 -35 47 22.13 V W68
2024-11-09 20:26:18 C 00 24 21.146 -35 29 58.31 V M22
2024-11-09 20:31:50 C 00 24 20.765 -35 29 55.82 V M22
2024-11-09 20:39:53 C 00 24 20.155 -35 29 52.12 V M22
2024-11-09 20:55:12 C 00 24 19.037 -35 29 45.38 V M22
2024-11-11 02:22:24 C 00 22 14.062 -35 16 15.13 V W68
2024-11-11 02:27:02 C 00 22 13.733 -35 16 12.86 V W68
2024-11-11 02:36:16 C 00 22 13.080 -35 16 08.65 V W68
2024-11-11 02:55:23 C 00 22 11.683 -35 15 59.98 V W68
2024-11-12 02:21:58 C 00 20 35.551 -35 04 38.21 V W68
2024-11-12 02:26:26 C 00 20 35.242 -35 04 35.54 V W68
2024-11-12 02:37:37 C 00 20 34.488 -35 04 29.89 V W68
2024-11-12 02:53:38 C 00 20 33.406 -35 04 20.24 V W68
2024-11-12 21:17:41 C 00 19 19.884 -34 55 04.19 V M22
2024-11-12 21:59:04 C 00 19 16.994 -34 54 43.99 V M22
2024-11-12 22:03:38 C 00 19 16.783 -34 54 40.61 V M22
2024-11-12 22:11:37 C 00 19 16.231 -34 54 35.82 V M22
2024-11-13 20:12:32 C 00 17 51.175 -34 43 05.30 V M22
2024-11-13 20:17:09 C 00 17 50.810 -34 43 02.86 V M22
2024-11-13 20:25:57 C 00 17 50.254 -34 42 57.89 V M22
2024-11-13 20:40:30 C 00 17 49.294 -34 42 50.44 V M22
2024-11-15 02:12:40 C 00 15 59.153 -34 26 42.07 V W68
2024-11-15 02:20:03 C 00 15 58.706 -34 26 37.72 V W68
2024-11-15 02:24:38 C 00 15 58.392 -34 26 35.16 V W68
2024-11-15 02:38:41 C 00 15 57.528 -34 26 26.99 V W68
2024-11-16 02:17:15 C 00 14 32.882 -34 12 59.51 V W68
2024-11-16 02:21:57 C 00 14 32.606 -34 12 56.20 V W68
2024-11-16 02:31:21 C 00 14 31.978 -34 12 50.44 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)