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
2010-10-04 14:35:57 C 22 14 52.16 -76 27 02.4 r E12
2010-10-16 10:54:38 C 22 53 50.84 -47 05 14.1 r E12
2018-01-22 11:12:07 C 14 46 42.22 +40 20 53.1 U I52
2018-01-22 11:19:59 C 14 46 44.17 +40 20 51.0 U I52
2018-01-22 11:23:34 C 14 46 45.05 +40 20 50.4 U I52
2018-11-14 08:35:37 C 08 10 38.80 +44 30 31.6 u H21
2018-11-14 08:57:48 C 08 10 39.81 +44 30 56.8 u H21
2020-10-08 12:32:23 C 03 47 12.931 -07 05 22.07 U F52
2020-10-08 12:51:53 C 03 47 07.697 -07 04 49.81 U F52
2020-10-08 13:30:50 C 03 46 57.333 -07 03 46.41 U F52
2020-10-10 09:40:48 C 03 35 32.11 -05 50 46.3 V 703
2020-10-10 10:04:00 C 03 35 25.88 -05 50 09.0 V 703
2020-10-15 08:07:01 C 03 04 26.09 -02 28 16.4 V 703
2020-10-15 08:14:32 C 03 04 24.09 -02 28 02.6 V 703
2020-10-15 08:22:04 C 03 04 22.09 -02 27 51.2 V 703
2020-10-15 08:29:34 C 03 04 20.00 -02 27 37.3 V 703
2020-10-16 23:30:01 C 02 54 11.34 -01 20 45.4 V C95
2020-10-16 23:36:13 C 02 54 09.72 -01 20 35.6 V C95
2020-10-16 23:42:26 C 02 54 08.02 -01 20 25.7 V C95
2020-10-16 23:48:39 C 02 54 06.42 -01 20 14.5 V C95
2020-10-17 00:28:34 C 02 53 56.603 -01 18 58.15 V J04
2020-10-17 00:30:10 C 02 53 56.200 -01 18 55.70 V J04
2020-10-17 00:31:44 C 02 53 55.759 -01 18 52.69 V J04
2020-10-17 07:38:29 C 02 52 05.24 -01 06 47.0 V G96
2020-10-17 07:45:53 C 02 52 03.27 -01 06 34.4 V G96
2020-10-17 07:53:17 C 02 52 01.31 -01 06 21.7 V G96
2020-10-17 08:00:41 C 02 51 59.34 -01 06 09.1 V G96
2020-10-18 08:17:24 C 02 45 46.41 -00 24 58.4 V 703
2020-10-18 08:36:07 C 02 45 41.46 -00 24 26.0 V 703
2020-10-18 08:45:29 C 02 45 39.00 -00 24 12.1 V 703
2020-10-18 10:04:45 C 02 45 19.90 -00 21 50.4 V T08
2020-10-18 10:10:45 C 02 45 18.30 -00 21 41.0 V T08
2020-10-18 10:15:25 C 02 45 17.08 -00 21 33.1 V T08
2020-10-18 10:51:47 C 02 45 07.47 -00 20 32.0 V T08
2020-10-19 11:41:34 C 02 38 52.011 +00 21 00.15 U F51
2020-10-19 11:59:06 C 02 38 47.450 +00 21 29.44 U F51
2020-10-19 12:16:38 C 02 38 42.937 +00 21 58.35 U F51
2020-10-19 12:34:05 C 02 38 38.372 +00 22 27.83 U F51
2020-10-22 05:20:47 C 02 22 56.40 +02 07 24.8 V 703
2020-10-22 05:29:29 C 02 22 54.29 +02 07 38.0 V 703
2020-10-22 05:38:11 C 02 22 52.15 +02 07 52.4 V 703
2020-10-22 05:46:54 C 02 22 50.06 +02 08 07.0 V 703
2020-10-24 07:44:09 C 02 11 21.90 +03 25 01.5 V 703
2020-10-24 07:52:19 C 02 11 20.05 +03 25 13.8 V 703
2020-10-24 08:08:40 C 02 11 16.28 +03 25 37.6 V 703
2020-10-24 10:48:46 C 02 10 40.85 +03 29 43.8 V T05
2020-10-24 10:52:49 C 02 10 39.93 +03 29 49.1 V T05
2020-10-24 11:00:45 C 02 10 38.13 +03 30 02.2 V T05
2020-10-24 11:17:25 C 02 10 34.30 +03 30 25.5 V T05
2020-10-27 14:57:31 C 01 54 39.23 +05 18 12.9 V N31