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
2025-10-27 02:45:03 C 22 42 07.466 +16 14 51.61 V G96
2025-10-27 02:53:12 C 22 42 09.007 +16 14 47.04 V G96
2025-10-27 03:01:20 C 22 42 10.501 +16 14 41.78 V G96
2025-10-27 03:09:28 C 22 42 11.966 +16 14 37.82 V G96
2025-10-27 03:35:32 C 22 42 16.740 +16 14 21.06 W H01
2025-10-27 03:42:17 C 22 42 17.988 +16 14 17.08 W H01
2025-10-27 03:57:10 C 22 42 20.736 +16 14 08.12 W H01
2025-10-27 04:06:23 C 22 42 22.436 +16 14 02.62 W H01
2025-10-27 04:35:55 C 22 42 27.983 +16 13 45.30 V I52
2025-10-27 04:40:51 C 22 42 28.865 +16 13 42.49 V I52
2025-10-27 04:50:47 C 22 42 30.697 +16 13 36.66 V I52
2025-10-28 01:32:27 C 22 46 22.295 +16 01 29.29 W H01
2025-10-28 01:39:01 C 22 46 23.451 +16 01 25.58 W H01
2025-10-28 01:58:28 C 22 46 26.877 +16 01 14.61 W H01
2025-10-28 02:03:27 C 22 46 27.758 +16 01 11.83 W H01
2025-10-28 06:12:15 C 22 47 11.396 +15 58 49.69 V I52
2025-10-28 06:13:57 C 22 47 11.713 +15 58 48.83 V I52
2025-10-28 06:15:38 C 22 47 11.987 +15 58 47.93 V I52
2025-10-28 06:17:19 C 22 47 12.278 +15 58 46.96 V I52
2025-10-28 18:47:30 C 22 49 26.195 +15 51 41.50 X 033
2025-10-28 18:50:12 C 22 49 26.695 +15 51 40.20 X 033
2025-10-28 18:52:56 C 22 49 27.156 +15 51 38.50 X 033
2025-10-28 18:55:39 C 22 49 27.595 +15 51 37.00 X 033
2025-10-28 19:21:52 B 22 49 32.148 +15 51 24.34 W 204
2025-10-28 19:49:15 B 22 49 36.780 +15 51 09.32 W 204
2025-10-28 20:16:39 B 22 49 41.436 +15 50 53.77 W 204
2025-10-28 20:58:30 C 22 49 48.44 +15 50 30.3 V L01
2025-10-28 21:02:09 C 22 49 49.05 +15 50 28.5 V L01
2025-10-28 21:05:49 C 22 49 49.72 +15 50 26.9 V L01
2025-10-28 21:21:16 C 22 49 52.490 +15 50 20.31 V B37
2025-10-28 21:30:27 C 22 49 54.062 +15 50 14.98 V B37
2025-10-28 21:32:38 C 22 49 54.425 +15 50 13.46 V B37
2025-10-28 21:33:22 C 22 49 54.43 +15 50 12.0 V 587
2025-10-28 21:39:26 C 22 49 55.51 +15 50 08.5 V 587
2025-10-28 21:44:28 C 22 49 56.436 +15 50 06.36 V B37
2025-10-28 22:12:01 C 22 50 01.108 +15 49 51.51 V B37
2025-10-29 00:04:24 C 22 50 21.450 +15 49 15.30 V 807
2025-10-29 00:12:21 C 22 50 22.800 +15 49 10.90 V 807
2025-10-29 00:20:19 C 22 50 24.120 +15 49 06.50 V 807
2025-10-30 00:11:32 C 22 54 25.440 +15 36 22.60 V 807
2025-10-30 00:16:50 C 22 54 26.270 +15 36 20.10 V 807
2025-10-30 00:22:07 C 22 54 27.120 +15 36 17.30 V 807
2025-10-31 00:08:43 C 22 58 16.270 +15 24 14.10 V 807
2025-10-31 00:19:19 C 22 58 17.870 +15 24 08.70 V 807
2025-10-31 00:29:55 C 22 58 19.480 +15 24 03.60 V 807
2025-11-06 04:29:44 C 23 18 42.09 +14 21 37.8 V 290
2025-11-06 04:41:10 C 23 18 43.46 +14 21 33.9 V 290
2025-11-06 04:53:17 C 23 18 44.91 +14 21 29.5 V 290
2025-11-08 03:52:49 C 23 24 16.78 +14 05 54.0 V 290
2025-11-08 04:12:52 C 23 24 18.98 +14 05 47.8 V 290