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 03:34:11 S 02 48 14.669 -32 42 05.15 V C57
2020-10-25 03:34:11 s 1 +132704.43 3 +312906.11 7570.0 C57
2020-10-25 03:44:11 S 02 48 13.334 -32 42 13.14 V C57
2020-10-25 03:44:11 s 1 +132406.39 4 +313332.15 3670.0 C57
2020-10-25 03:54:11 S 02 48 12.221 -32 42 21.53 V C57
2020-10-25 03:54:11 s 1 +132107.87 3 +313757.06 9570.0 C57
2020-10-25 04:04:11 S 02 48 11.014 -32 42 29.56 V C57
2020-10-25 04:04:11 s 1 +131808.87 2 +314180.83 5260.0 C57
2020-10-25 04:14:11 S 02 48 09.835 -32 42 36.97 V C57
2020-10-25 04:14:11 s 1 +131509.39 4 +314603.46 740.0 C57
2020-10-25 04:24:11 S 02 48 08.736 -32 42 46.22 V C57
2020-10-25 04:24:11 s 1 +131209.44 0 +315024.95 6020.0 C57
2020-10-25 04:34:11 S 02 48 07.558 -32 42 54.76 V C57
2020-10-25 04:34:11 s 1 +130909.01 4 +315445.31 1100.0 C57
2020-10-25 04:44:11 S 02 48 06.370 -32 43 02.14 V C57
2020-10-25 04:44:11 s 1 +130608.11 7 +315864.53 5980.0 C57
2020-10-25 04:54:11 S 02 48 05.170 -32 43 10.42 V C57
2020-10-25 04:54:11 s 1 +130306.75 1 +316282.63 660.0 C57
2020-10-25 05:04:11 S 02 48 03.962 -32 43 18.44 V C57
2020-10-25 05:04:11 s 1 +130004.91 9 +316699.59 5140.0 C57
2020-10-25 05:14:11 S 02 48 02.878 -32 43 25.86 V C57
2020-10-25 05:14:11 s 1 +129702.62 3 +317115.42 9430.0 C57
2020-10-25 05:24:11 S 02 48 01.711 -32 43 33.96 V C57
2020-10-25 05:24:11 s 1 +129399.86 5 +317530.12 3520.0 C57
2020-10-25 05:34:11 S 02 48 00.566 -32 43 42.46 V C57
2020-10-25 05:34:11 s 1 +129096.64 7 +317943.69 7420.0 C57
2020-10-25 05:44:11 S 02 47 59.352 -32 43 50.70 V C57
2020-10-25 05:44:11 s 1 +128792.97 1 +318356.14 1120.0 C57
2020-10-25 05:54:11 S 02 47 58.130 -32 43 58.58 V C57
2020-10-25 05:54:11 s 1 +128488.84 0 +318767.46 4640.0 C57
2020-10-25 06:04:11 S 02 47 56.938 -32 44 06.25 V C57
2020-10-25 06:04:11 s 1 +128184.25 5 +319177.66 7960.0 C57
2020-10-25 06:14:11 S 02 47 55.848 -32 44 13.49 V C57
2020-10-25 06:14:11 s 1 +127879.21 9 +319586.73 1100.0 C57
2020-10-25 06:24:11 S 02 47 54.622 -32 44 23.21 V C57
2020-10-25 06:24:11 s 1 +127573.73 4 +319994.68 4050.0 C57
2020-10-25 06:34:11 S 02 47 53.474 -32 44 31.06 V C57
2020-10-25 06:34:11 s 1 +127267.80 2 +320401.52 6810.0 C57
2020-10-25 06:44:11 S 02 47 52.260 -32 44 39.73 V C57
2020-10-25 06:44:11 s 1 +126961.42 5 +320807.23 9400.0 C57
2020-10-25 06:54:11 S 02 47 51.144 -32 44 46.54 V C57
2020-10-25 06:54:11 s 1 +126654.60 5 +321211.82 1790.0 C57
2020-10-25 07:04:11 S 02 47 49.934 -32 44 53.56 V C57
2020-10-25 07:04:11 s 1 +126347.34 4 +321615.29 4010.0 C57
2020-10-25 07:14:11 S 02 47 48.761 -32 45 02.38 V C57
2020-10-25 07:14:11 s 1 +126039.64 5 +322017.65 6040.0 C57
2020-10-25 07:24:11 S 02 47 47.640 -32 45 10.51 V C57
2020-10-25 07:24:11 s 1 +125731.50 9 +322418.89 7900.0 C57
2020-10-25 07:34:11 S 02 47 46.447 -32 45 18.83 V C57
2020-10-25 07:34:11 s 1 +125422.93 8 +322819.02 9580.0 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)