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
2020-10-27 15:39:46 C 01 54 30.81 +05 19 09.4 V N31
2020-10-27 16:00:54 C 01 54 26.43 +05 19 38.9 V N31
2020-10-27 16:43:12 C 01 54 17.69 +05 20 36.3 V N31
2020-10-27 17:04:20 C 01 54 13.43 +05 21 04.0 V N31
2020-10-27 17:25:28 C 01 54 08.95 +05 21 33.2 V N31
2020-10-27 17:50:47 C 01 54 03.85 +05 22 07.7 V N31
2020-11-05 05:02:05 C 01 20 08.18 +09 18 41.4 V G96
2020-11-05 05:09:26 C 01 20 07.13 +09 18 49.0 V G96
2020-11-05 05:16:46 C 01 20 06.08 +09 18 56.2 V G96
2020-11-05 05:24:06 C 01 20 05.05 +09 19 03.3 V G96
2020-11-10 13:40:33 C 01 05 01.63 +11 13 35.2 q D29
2020-11-10 14:00:55 C 01 04 59.45 +11 13 52.3 q D29
2020-11-14 09:10:28 C 00 56 55.665 +12 22 44.88 U F51
2020-11-14 09:29:07 C 00 56 54.119 +12 22 57.97 U F51
2020-11-14 09:47:48 C 00 56 52.586 +12 23 11.06 U F51
2020-11-14 10:06:23 C 00 56 51.039 +12 23 24.05 U F51