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
2018-11-08 02:41:33 C 00 25 04.68 +14 26 57.0 V I52
2018-11-08 02:43:09 C 00 25 04.91 +14 26 57.1 o 691
2018-11-08 02:45:24 C 00 25 05.13 +14 26 55.5 V I52
2018-11-08 02:47:06 C 00 25 05.37 +14 26 55.0 o 691
2018-11-08 03:16:41 C 00 25 08.37 +14 26 42.8 o 711
2018-11-08 03:21:56 C 00 25 08.99 +14 26 40.0 o 711
2018-11-08 03:26:17 C 00 25 09.48 +14 26 37.8 o 711
2018-11-08 03:34:55 C 00 25 10.93 +14 26 30.8 V I52
2018-11-08 09:32:09 C 00 25 55.083 +14 23 35.42 U F52
2018-11-08 09:50:59 C 00 25 57.259 +14 23 24.97 U F52
2018-11-08 10:09:53 C 00 25 59.454 +14 23 14.39 U F52
2018-11-08 10:29:27 C 00 26 01.745 +14 23 03.36 U F52
2018-11-09 04:31:15 C 00 28 25.37 +14 13 46.3 o 691
2018-11-09 04:43:15 C 00 28 26.70 +14 13 40.5 o 691
2018-11-09 04:55:16 C 00 28 28.05 +14 13 34.1 o 691
2018-11-09 06:44:11 C 00 28 43.188 +14 12 53.70 V T12
2018-11-09 06:45:58 C 00 28 43.383 +14 12 52.89 V T12
2018-11-10 02:33:11 C 00 31 14.17 +14 03 09.0 o 291
2018-11-10 02:37:30 C 00 31 14.62 +14 03 07.0 o 291
2018-11-10 02:41:48 C 00 31 15.11 +14 03 05.3 o 291
2018-11-10 05:11:41 C 00 31 31.35 +14 01 56.6 V G96
2018-11-10 05:21:12 C 00 31 32.34 +14 01 52.1 V G96
2018-11-10 05:28:38 C 00 31 33.15 +14 01 48.6 V G96
2018-11-10 05:36:03 C 00 31 33.96 +14 01 45.3 V G96
2018-11-11 02:21:22 C 00 34 09.26 +13 52 24.6 o 691
2018-11-11 02:28:39 C 00 34 10.07 +13 52 21.7 o 691
2018-11-11 02:35:54 C 00 34 10.84 +13 52 19.2 o 691
2018-11-12 01:49:25 C 00 36 57.11 +13 42 30.0 o 691
2018-11-12 01:56:20 C 00 36 57.87 +13 42 27.5 o 691
2018-11-12 02:03:15 C 00 36 58.58 +13 42 25.6 o 691
2018-11-12 07:15:29 C 00 37 30.58 +13 40 18.2 V I52
2018-11-12 07:18:31 C 00 37 30.94 +13 40 16.5 V I52
2018-11-12 07:21:33 C 00 37 31.29 +13 40 15.1 V I52
2018-11-12 07:23:21 C 00 37 31.48 +13 40 14.6 V I52
2018-11-14 05:22:50 C 00 42 46.54 +13 23 06.4 o 691
2018-11-14 05:31:19 C 00 42 47.36 +13 23 02.9 o 691
2018-11-14 05:39:47 C 00 42 48.20 +13 23 00.5 o 691
2018-11-14 07:34:45 C 00 43 01.763 +13 22 32.64 V T12
2018-11-14 07:36:41 C 00 43 01.946 +13 22 32.02 V T12
2018-11-15 06:45:54 C 00 45 34.471 +13 14 49.66 V T12
2018-11-17 06:13:26 C 00 50 33.13 +13 00 37.6 o 291
2018-11-17 06:26:46 C 00 50 34.38 +13 00 33.9 o 291
2018-11-17 06:40:06 C 00 50 35.59 +13 00 29.9 o 291
2018-11-27 07:08:47 C 01 13 26.44 +12 20 47.2 o 291
2018-11-27 07:33:47 C 01 13 28.51 +12 20 44.9 o 291
2018-11-27 07:58:43 C 01 13 30.58 +12 20 42.2 o 291
2018-12-14 03:31:32 C 01 47 44.61 +12 37 58.6 o 291
2018-12-14 03:53:04 C 01 47 46.23 +12 38 01.6 o 291
2018-12-14 04:14:38 C 01 47 47.89 +12 38 04.8 o 291
2024-01-10 09:39:52 C 08 19 56.93 +15 22 13.2 V 291