2009 UM28

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4312298781 ± 9.35e-08
Semi-major axis (a)1.8875578427 AU ± 1.63e-09
Inclination (i)8.77169751° ± 1.64e-05
Long. of Asc. Node (Ω)32.64426789° ± 9.28e-06
Arg. of Perihelion (ω)9.95001090° ± 8.63e-05
Mean Anomaly (M)64.96503506° ± 3.04e-05
Mean Motion (n)0.3800684962°/day ± 4.91e-10
Perihelion dist (q)1.07358650 AU ± 1.76e-07
Aphelion dist (Q)2.70152918 AU ± 1.76e-07
Orbital Period2.59328593 yr ± 3.35e-09
Physical Parameters
H (abs. magnitude)23.68
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.303″
Uncertainty0
Orbit TypeAmor
MOID0.081590 AU
Observations Used54
Oppositions8
Arc Total2009-2022
First Observation Used2009-10-26
Last Observation Used2022-10-01
Observations (56)
Date Type RA Dec Mag Band Observatory
2022-10-01 07:39:22 C 03 46 24.36 -00 24 16.5 u H21
2022-10-01 07:46:27 C 03 46 25.72 -00 23 58.5 u H21
2022-10-01 11:46:47 C 03 47 12.653 -00 13 42.38 V I52
2022-10-01 11:49:31 C 03 47 13.146 -00 13 35.36 V I52
2022-10-01 11:52:15 C 03 47 13.686 -00 13 28.42 V I52
2022-10-01 11:55:00 C 03 47 14.233 -00 13 21.43 V I52