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
2020-10-25 07:44:11 S 02 47 45.353 -32 45 27.72 V C57
2020-10-25 07:44:11 s 1 +125113.93 5 +323218.04 1080.0 C57
2020-10-25 07:54:11 S 02 47 44.105 -32 45 34.16 V C57
2020-10-25 07:54:11 s 1 +124804.50 2 +323615.94 2400.0 C57
2020-10-25 08:04:11 S 02 47 42.912 -32 45 44.14 V C57
2020-10-25 08:04:11 s 1 +124494.64 0 +324012.73 3550.0 C57
2020-10-25 08:14:11 S 02 47 41.719 -32 45 49.72 V C57
2020-10-25 08:14:11 s 1 +124184.35 1 +324408.42 4530.0 C57
2020-10-25 08:24:11 S 02 47 40.567 -32 45 59.00 V C57
2020-10-25 08:24:11 s 1 +123873.63 8 +324802.99 5330.0 C57
2020-10-25 08:34:11 S 02 47 39.430 -32 46 07.90 V C57
2020-10-25 08:34:11 s 1 +123562.50 3 +325196.46 5970.0 C57
2020-10-25 08:44:11 S 02 47 38.158 -32 46 13.87 V C57
2020-10-25 08:44:11 s 1 +123250.94 7 +325588.82 6440.0 C57
2020-10-25 08:54:11 S 02 47 37.097 -32 46 23.02 V C57
2020-10-25 08:54:11 s 1 +122938.97 3 +325980.07 6730.0 C57
2020-10-25 09:04:11 S 02 47 35.846 -32 46 31.37 V C57
2020-10-25 09:04:11 s 1 +122626.58 2 +326370.22 6860.0 C57
2020-10-25 09:14:11 S 02 47 34.644 -32 46 39.22 V C57
2020-10-25 09:14:11 s 1 +122313.77 7 +326759.27 6830.0 C57
2020-10-25 09:24:11 S 02 47 33.492 -32 46 47.10 V C57
2020-10-25 09:24:11 s 1 +122000.55 9 +327147.22 6630.0 C57
2020-10-25 09:34:11 S 02 47 32.292 -32 46 54.30 V C57
2020-10-25 09:34:11 s 1 +121686.93 0 +327534.06 6260.0 C57
2020-10-25 09:44:11 S 02 47 31.392 -32 47 02.47 V C57
2020-10-25 09:44:11 s 1 +121372.89 3 +327919.81 5740.0 C57
2020-10-25 09:52:50 C 02 47 56.52 -32 41 47.2 V T08
2020-10-25 09:54:11 S 02 47 29.947 -32 47 10.39 V C57
2020-10-25 09:54:11 s 1 +121058.44 9 +328304.45 5050.0 C57
2020-10-25 09:55:29 C 02 47 56.22 -32 41 49.3 V T08
2020-10-25 09:59:28 C 02 47 55.77 -32 41 52.3 V T08
2020-10-25 10:04:11 S 02 47 28.853 -32 47 20.18 V C57
2020-10-25 10:04:11 s 1 +120743.60 1 +328688.00 4210.0 C57
2020-10-25 10:08:44 C 02 47 54.72 -32 42 00.0 V T08
2020-10-25 10:14:11 S 02 47 27.593 -32 47 27.38 V C57
2020-10-25 10:14:11 s 1 +120428.35 0 +329070.45 3200.0 C57
2020-10-25 10:24:11 S 02 47 26.474 -32 47 34.19 V C57
2020-10-25 10:24:11 s 1 +120112.69 7 +329451.81 2040.0 C57
2020-10-25 10:34:11 S 02 47 25.303 -32 47 42.36 V C57
2020-10-25 10:34:11 s 1 +119796.64 6 +329832.07 720.0 C57
2020-10-25 10:44:11 S 02 47 24.050 -32 47 51.36 V C57
2020-10-25 10:44:11 s 1 +119480.19 7 +330211.24 9250.0 C57
2020-10-25 10:54:11 S 02 47 22.973 -32 47 58.92 V C57
2020-10-25 10:54:11 s 1 +119163.35 3 +330589.31 7620.0 C57
2020-10-25 11:04:11 S 02 47 21.696 -32 48 06.44 V C57
2020-10-25 11:04:11 s 1 +118846.11 6 +330966.30 5840.0 C57
2020-10-25 11:14:11 S 02 47 20.666 -32 48 14.51 V C57
2020-10-25 11:14:11 s 1 +118528.48 8 +331342.19 3910.0 C57
2020-10-25 11:24:11 S 02 47 19.469 -32 48 22.64 V C57
2020-10-25 11:24:11 s 1 +118210.46 9 +331716.99 1820.0 C57
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)