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
2013-12-23 00:56:59 C 03 29 29.52 -26 59 42.8 u 807
2013-12-23 01:00:37 C 03 29 30.41 -26 59 40.1 u 807
2013-12-27 04:26:29 C 03 52 56.71 -25 35 23.2 17.8 u I36
2013-12-27 04:34:39 C 03 52 58.46 -25 35 15.0 17.9 u I36
2013-12-27 04:44:03 C 03 53 00.44 -25 35 06.1 17.9 u I36
2013-12-30 02:48:46 C 04 07 32.64 -24 27 46.9 17.2 u I36
2013-12-30 02:55:49 C 04 07 33.96 -24 27 40.2 17.2 u I36
2013-12-30 03:03:01 C 04 07 35.32 -24 27 32.7 17.4 u I36
2013-12-30 04:34:30 C 04 07 54.21 -24 26 33.4 q 703
2013-12-30 04:51:55 C 04 07 57.44 -24 26 16.0 q 703
2013-12-30 05:00:36 C 04 07 59.10 -24 26 07.4 q 703
2014-01-03 03:17:09 C 04 25 13.91 -22 48 17.1 17.1 u I36
2014-01-03 03:20:36 C 04 25 14.50 -22 48 13.4 17.2 u I36
2014-01-03 03:25:39 C 04 25 15.35 -22 48 07.8 17.3 u I36
2014-01-04 05:05:00 C 04 29 33.62 -22 20 45.9 17.1 u I36
2014-01-04 05:09:01 C 04 29 34.26 -22 20 41.7 17.1 u I36
2014-01-04 05:13:02 C 04 29 34.89 -22 20 37.0 17.1 u I36
2014-01-04 05:17:03 C 04 29 35.55 -22 20 32.6 17.3 u I36
2014-01-06 02:48:53 C 04 36 54.15 -21 31 31.9 17.4 u I36
2014-01-06 02:52:22 C 04 36 54.66 -21 31 27.7 17.5 u I36
2014-01-06 02:56:38 C 04 36 55.33 -21 31 23.3 17.4 u I36
2014-01-06 03:50:39 C 04 37 04.79 -21 30 52.4 o 291
2014-01-06 03:54:10 C 04 37 05.31 -21 30 48.5 o 291
2014-01-06 03:57:41 C 04 37 05.85 -21 30 44.6 o 291
2014-01-07 03:22:44 C 04 40 39.64 -21 04 49.4 17.2 u I36
2014-01-07 03:26:53 C 04 40 40.15 -21 04 44.9 17.4 u I36
2014-01-07 03:31:19 C 04 40 40.82 -21 04 40.3 17.6 u I36
2014-01-09 02:18:09 C 04 47 32.16 -20 13 35.8 17.5 u I36
2014-01-09 03:03:44 C 04 47 38.40 -20 12 45.8 17.3 u I36
2014-01-09 03:41:46 C 04 47 43.60 -20 12 03.7 17.6 u I36
2014-01-11 04:25:10 C 04 54 27.92 -19 19 08.7 q 448
2014-01-11 04:31:36 C 04 54 28.78 -19 19 02.2 q 703
2014-01-11 04:34:32 C 04 54 29.13 -19 18 58.6 q 448
2014-01-11 04:42:35 C 04 54 30.17 -19 18 49.4 q 703
2014-01-11 04:43:15 C 04 54 30.22 -19 18 48.9 q 448
2014-01-11 04:53:35 C 04 54 31.65 -19 18 37.6 q 703
2014-01-11 05:04:36 C 04 54 33.08 -19 18 25.9 q 703
2014-01-11 06:59:54 C 04 54 48.946 -19 16 15.62 L F51
2014-01-11 07:16:46 C 04 54 51.088 -19 15 57.27 L F51
2014-01-12 02:15:20 C 04 57 21.82 -18 55 15.7 u H21
2014-01-12 02:22:22 C 04 57 22.71 -18 55 08.2 u H21
2014-01-12 02:29:11 C 04 57 23.56 -18 55 00.7 u H21
2014-01-12 02:35:18 C 04 57 24.33 -18 54 54.1 u H21
2014-01-12 02:40:36 C 04 57 24.99 -18 54 48.4 u H21
2014-01-12 14:00:20 C 04 58 52.51 -18 41 58.0 q D90
2014-01-12 14:10:15 C 04 58 53.74 -18 41 46.9 q D90
2014-01-12 14:20:10 C 04 58 54.97 -18 41 35.9 q D90
2014-01-14 02:24:12 C 05 03 30.24 -18 02 40.8 u H21
2014-01-14 02:28:36 C 05 03 30.78 -18 02 36.1 u H21
2014-01-14 02:33:00 C 05 03 31.31 -18 02 31.4 u H21