2009 UM

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3709940331 ± 1.29e-07
Semi-major axis (a)1.0689670523 AU ± 2.55e-09
Inclination (i)18.24444875° ± 1.74e-05
Long. of Asc. Node (Ω)37.09655514° ± 1.12e-05
Arg. of Perihelion (ω)218.05027745° ± 1.97e-05
Mean Anomaly (M)312.31888432° ± 2.43e-05
Mean Motion (n)0.8917965682°/day ± 3.20e-09
Perihelion dist (q)0.67238665 AU ± 1.38e-07
Aphelion dist (Q)1.46554745 AU ± 1.38e-07
Orbital Period1.10521426 yr ± 3.96e-09
Physical Parameters
H (abs. magnitude)21.05
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.420″
Uncertainty0
Orbit TypeApollo
MOID0.174635 AU
Observations Used108
Oppositions1
Arc Total2009-2020
First Observation Used2009-10-16
Last Observation Used2020-11-14
Observations (116)
Date Type RA Dec Mag Band Observatory
2009-10-16 10:35:24 C 04 53 26.01 +23 32 21.8 r G96
2009-10-16 10:43:27 C 04 53 25.18 +23 32 31.5 r G96
2009-10-16 10:51:36 C 04 53 24.28 +23 32 40.9 r G96
2009-10-16 10:59:49 C 04 53 23.49 +23 32 50.4 r G96
2009-10-16 11:39:09 C 04 53 19.35 +23 33 36.7 r G96
2009-10-16 11:46:59 C 04 53 18.56 +23 33 46.1 r G96
2009-10-16 12:02:21 C 04 53 17.01 +23 34 04.4 r G96
2009-10-16 14:13:32 C 04 53 04.16 +23 36 42.8 o F65
2009-10-16 16:37:11 C 04 52 50.27 +23 39 47.4 o E10
2009-10-17 01:24:50 C 04 51 57.46 +23 49 41.0 r J95
2009-10-17 01:43:00 C 04 51 55.44 +23 50 03.8 r J95
2009-10-17 05:55:26 C 04 51 30.31 +23 55 04.2 o H01
2009-10-17 06:03:12 C 04 51 29.50 +23 55 13.5 o H01
2009-10-17 06:11:41 C 04 51 28.61 +23 55 23.6 o H01
2009-10-17 09:57:35 C 04 51 04.35 +23 59 53.7 c 926
2009-10-17 10:03:31 C 04 51 03.83 +24 00 00.3 c 926
2009-10-17 10:09:26 C 04 51 03.11 +24 00 07.6 c 926
2009-10-17 11:18:23 C 04 50 55.57 +24 01 29.4 r G96
2009-10-17 11:19:15 C 04 50 55.46 +24 01 30.7 r G96
2009-10-17 11:27:16 C 04 50 54.60 +24 01 40.0 r G96
2009-10-17 11:28:15 C 04 50 54.49 +24 01 40.8 r G96
2009-10-17 11:36:23 C 04 50 53.59 +24 01 50.5 r G96
2009-10-17 11:37:19 C 04 50 53.52 +24 01 51.8 r G96
2009-10-17 11:45:19 C 04 50 52.62 +24 02 01.1 r G96
2009-10-17 11:46:13 C 04 50 52.51 +24 02 02.0 r G96
2009-10-17 12:09:44 C 04 50 49.92 +24 02 29.5 r G96
2009-10-17 12:11:32 C 04 50 49.77 +24 02 31.7 r G96
2009-10-17 12:13:20 C 04 50 49.56 +24 02 33.6 r G96
2009-10-17 12:15:08 C 04 50 49.38 +24 02 36.1 r G96
2009-10-22 12:05:22 C 04 36 44.53 +26 24 01.7 o 291
2009-10-22 12:11:15 C 04 36 43.65 +26 24 09.1 o 291
2009-10-22 12:17:09 C 04 36 42.85 +26 24 15.5 o 291
2009-10-23 12:07:23 C 04 33 31.93 +26 52 03.8 o 291
2009-10-23 12:13:14 C 04 33 31.10 +26 52 11.0 o 291
2009-10-23 12:19:12 C 04 33 30.32 +26 52 17.0 o 291
2009-10-26 09:53:28 C 04 23 31.53 +28 11 46.4 o 691
2009-10-26 10:18:14 C 04 23 27.57 +28 12 13.7 o 691
2009-10-26 10:43:01 C 04 23 23.75 +28 12 41.4 o 691
2009-10-30 08:48:02 C 04 08 20.03 +29 53 39.7 c 926
2009-11-23 08:24:24 C 02 25 54.17 +34 41 18.5 o 291
2009-11-23 08:30:50 C 02 25 53.25 +34 41 18.6 o 291
2009-11-23 08:37:07 C 02 25 52.28 +34 41 18.0 o 291
2009-12-16 23:59:17 C 01 37 57.63 +33 18 21.3 o H21
2009-12-17 00:19:20 C 01 37 56.96 +33 18 17.9 o H21
2009-12-17 00:43:00 C 01 37 56.28 +33 18 14.0 o H21
2010-10-02 11:50:49 S 21 41 57.900 -81 43 36.44 L C51
2010-10-02 13:26:10 S 21 43 35.808 -81 34 02.89 L C51
2010-10-02 15:01:20 S 21 45 09.046 -81 24 25.63 L C51
2010-10-02 18:11:51 S 21 48 07.795 -81 05 07.66 L C51
2010-10-04 13:18:14 C 22 14 23.06 -76 35 27.2 r E12