2013 UH9

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5962745135 ± 8.12e-09
Semi-major axis (a)2.5834576126 AU ± 3.87e-08
Inclination (i)13.05510710° ± 2.42e-06
Long. of Asc. Node (Ω)222.08749253° ± 3.72e-06
Arg. of Perihelion (ω)186.97625830° ± 6.30e-06
Mean Anomaly (M)321.57643244° ± 2.33e-05
Mean Motion (n)0.2373614933°/day ± 5.34e-09
Perihelion dist (q)1.04300768 AU ± 2.62e-08
Aphelion dist (Q)4.12390754 AU ± 6.53e-08
Orbital Period4.15242704 yr ± 9.34e-08
Physical Parameters
H (abs. magnitude)18.61
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.231″
Uncertainty0
Orbit TypeAmor
MOID0.052524 AU
Observations Used468
Oppositions31
Arc Total1977-2018
First Observation Used2009-11-17
Last Observation Used2018-02-05
Observations (514)
Date Type RA Dec Mag Band Observatory
2014-02-08 04:26:25 C 06 03 19.63 -08 01 04.5 o 291
2014-02-09 05:55:34 C 06 05 28.19 -07 39 00.6 o 291
2014-02-09 05:58:50 C 06 05 28.45 -07 38 57.7 o 291
2014-02-09 06:02:04 C 06 05 28.72 -07 38 55.0 o 291
2017-06-28 06:47:44 C 19 50 10.83 -00 12 59.2 u H21
2017-06-28 07:01:45 C 19 50 10.27 -00 12 55.7 u H21
2017-06-28 07:26:45 C 19 50 09.28 -00 12 49.4 u H21
2017-12-10 05:01:01 C 21 25 18.575 -08 27 23.31 U F51
2017-12-10 05:08:26 C 21 25 19.632 -08 27 22.19 U F51
2017-12-10 05:15:53 C 21 25 20.699 -08 27 20.77 U F51
2017-12-10 05:23:20 C 21 25 21.750 -08 27 19.81 U F51
2018-02-05 02:05:13 C 01 25 17.40 +00 49 54.9 U G96
2018-02-05 02:20:07 C 01 25 20.35 +00 50 04.0 U G96
2018-02-05 02:27:36 C 01 25 21.73 +00 50 07.8 U G96