2025 UM9

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.7011180651 ± 3.95e-04
Semi-major axis (a)2.2191111220 AU ± 2.99e-03
Inclination (i)6.74548660° ± 3.26e-03
Long. of Asc. Node (Ω)279.99664743° ± 3.28e-02
Arg. of Perihelion (ω)2.64843042° ± 4.39e-02
Mean Anomaly (M)28.16866557° ± 6.06e-02
Mean Motion (n)0.2981561014°/day ± 6.03e-04
Perihelion dist (q)0.66325223 AU ± 1.25e-03
Aphelion dist (Q)3.77497002 AU ± 5.16e-03
Orbital Period3.30573910 yr ± 6.68e-03
Physical Parameters
H (abs. magnitude)21.08
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-03
RMS Residual0.231″
Uncertainty2
Orbit TypeApollo
MOID0.114461 AU
Observations Used57
Oppositions1
Arc Total2025-2025
First Observation Used2025-10-27
Last Observation Used2025-11-11
Observations (57)
Date Type RA Dec Mag Band Observatory
2025-11-08 04:19:33 C 23 24 19.71 +14 05 45.8 V 290
2025-11-09 05:06:48 C 23 27 05.92 +13 58 15.5 V 691
2025-11-09 05:28:47 C 23 27 08.28 +13 58 08.8 V 691
2025-11-09 05:50:47 C 23 27 10.60 +13 58 02.5 V 691
2025-11-11 04:58:54 C 23 32 12.78 +13 45 02.5 V 291
2025-11-11 05:08:37 C 23 32 13.74 +13 45 00.7 V 291
2025-11-11 05:18:19 C 23 32 14.72 +13 44 57.4 V 291