2018 UM1

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.1737615782 ± 7.77e-08
Semi-major axis (a)1.1434794810 AU ± 5.05e-09
Inclination (i)1.99517201° ± 2.87e-06
Long. of Asc. Node (Ω)260.56422851° ± 8.28e-05
Arg. of Perihelion (ω)54.34621973° ± 8.45e-05
Mean Anomaly (M)338.30037866° ± 1.61e-05
Mean Motion (n)0.8060643471°/day ± 5.34e-09
Perihelion dist (q)0.94478668 AU ± 8.90e-08
Aphelion dist (Q)1.34217228 AU ± 8.91e-08
Orbital Period1.22276377 yr ± 8.10e-09
Physical Parameters
H (abs. magnitude)23.64
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.282″
Uncertainty0
Orbit TypeApollo
MOID0.002337 AU
Observations Used201
Oppositions2
Arc Total2013-2024
First Observation Used2013-01-17
Last Observation Used2024-01-10
Observations (201)
Date Type RA Dec Mag Band Observatory
2018-10-22 02:06:16 C 23 00 45.02 +20 12 57.6 u H21
2018-10-22 02:11:34 C 23 00 46.63 +20 12 51.7 u H21
2018-10-22 02:30:24 C 23 00 52.25 +20 12 30.2 u H21
2018-10-23 01:46:08 C 23 08 16.58 +19 45 39.0 u H21
2018-10-23 01:50:49 C 23 08 17.92 +19 45 33.9 u H21
2018-10-23 01:58:42 C 23 08 20.11 +19 45 24.9 u H21
2018-10-24 02:16:59 C 23 15 32.68 +19 18 09.9 u H21
2018-10-24 02:20:38 C 23 15 33.66 +19 18 06.3 u H21
2018-10-24 02:26:58 C 23 15 35.29 +19 17 59.0 u H21
2018-10-26 21:12:36 C 23 33 07.48 +18 07 31.9 V J95
2018-10-26 21:31:00 C 23 33 11.54 +18 07 13.8 V J95
2018-10-26 21:39:51 C 23 33 13.48 +18 07 04.7 V J95
2018-10-27 02:29:10 C 23 34 26.21 +18 02 45.1 V I52
2018-10-27 02:33:04 C 23 34 27.04 +18 02 41.6 V I52
2018-10-27 02:33:25 C 23 34 27.14 +18 02 41.2 V I52
2018-10-27 02:40:06 C 23 34 28.57 +18 02 34.9 V I52
2018-10-27 05:39:38 C 23 35 06.53 +17 59 41.9 o 291
2018-10-27 05:44:38 C 23 35 07.58 +17 59 36.6 o 291
2018-10-27 05:49:38 C 23 35 08.63 +17 59 32.0 o 291
2018-10-27 08:16:37 C 23 35 40.05 +17 56 58.3 o 691
2018-10-27 08:40:24 C 23 35 45.29 +17 56 32.6 o 691
2018-10-27 09:04:00 C 23 35 50.54 +17 56 07.4 o 691
2018-10-28 02:45:43 C 23 40 01.35 +17 39 20.1 V I52
2018-10-28 02:51:42 C 23 40 02.58 +17 39 14.8 V I52
2018-10-28 02:52:03 C 23 40 02.63 +17 39 13.9 V I52
2018-10-28 03:20:48 C 23 40 06.15 +17 38 38.5 u H21
2018-10-28 03:32:16 C 23 40 08.44 +17 38 27.6 u H21
2018-10-28 03:44:28 C 23 40 10.88 +17 38 15.9 u H21
2018-10-28 05:55:38 C 23 40 38.97 +17 36 22.5 V 703
2018-10-28 06:03:23 C 23 40 40.51 +17 36 15.8 V 703
2018-10-28 06:18:56 C 23 40 43.63 +17 36 00.8 V 703
2018-10-28 06:44:35 C 23 40 48.79 +17 35 35.4 o 691
2018-10-28 06:59:35 C 23 40 51.79 +17 35 21.0 o 691
2018-10-28 07:14:21 C 23 40 54.73 +17 35 05.7 o 691
2018-10-28 21:48:10 C 23 44 07.78 +17 21 13.5 V J95
2018-10-28 21:55:15 C 23 44 09.18 +17 21 07.1 V J95
2018-10-28 22:01:05 C 23 44 10.27 +17 21 01.7 V J95
2018-10-29 01:41:04 C 23 45 01.71 +17 18 03.8 V I52
2018-10-29 01:41:40 C 23 45 01.79 +17 18 03.3 V I52
2018-10-29 02:01:29 C 23 45 05.58 +17 17 46.3 V I52
2018-10-29 02:03:40 C 23 45 06.12 +17 17 45.7 o 691
2018-10-29 02:05:30 C 23 45 06.47 +17 17 44.0 o 691
2018-10-29 02:07:21 C 23 45 06.79 +17 17 42.9 o 691
2018-10-30 03:12:42 C 23 50 14.37 +16 55 36.7 o 691
2018-10-30 03:23:16 C 23 50 16.29 +16 55 28.2 o 691
2018-10-30 03:33:44 C 23 50 18.13 +16 55 19.2 o 691
2018-10-30 21:21:47 C 23 53 45.14 +16 39 49.3 V J95
2018-10-30 21:30:09 C 23 53 46.62 +16 39 42.1 V J95
2018-10-30 21:40:23 C 23 53 48.38 +16 39 33.6 V J95
2018-11-01 02:48:19 C 23 59 15.09 +16 16 27.9 V G96