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
2018-11-01 02:56:25 C 23 59 16.38 +16 16 22.2 V G96
2018-11-01 03:04:33 C 23 59 17.68 +16 16 15.9 V G96
2018-11-01 03:12:40 C 23 59 18.98 +16 16 09.9 V G96
2018-11-01 05:18:57 C 23 59 38.95 +16 14 34.2 o 691
2018-11-01 05:21:09 C 23 59 39.28 +16 14 31.6 o 691
2018-11-01 05:23:21 C 23 59 39.61 +16 14 30.3 o 691
2018-11-01 13:33:55 C 00 01 07.18 +16 08 10.6 q D29
2018-11-01 13:56:49 C 00 01 10.71 +16 07 53.0 q D29
2018-11-01 14:19:44 C 00 01 14.26 +16 07 35.2 q D29
2018-11-02 03:34:21 C 00 03 34.42 +15 57 37.5 o 691
2018-11-02 03:40:23 C 00 03 35.29 +15 57 32.3 V I52
2018-11-02 03:41:29 C 00 03 35.45 +15 57 31.7 V I52
2018-11-02 03:42:34 C 00 03 35.59 +15 57 31.2 V I52
2018-11-02 03:48:16 C 00 03 36.52 +15 57 28.4 o 691
2018-11-02 03:49:26 C 00 03 36.63 +15 57 25.6 V I52
2018-11-02 04:01:43 C 00 03 38.53 +15 57 17.9 o 691
2018-11-02 06:34:24 C 00 04 05.144 +15 55 41.24 V T12
2018-11-02 06:35:06 C 00 04 05.248 +15 55 40.74 V T12
2018-11-02 06:35:50 C 00 04 05.357 +15 55 40.23 V T12
2018-11-03 02:36:48 C 00 07 26.12 +15 40 54.0 V I52
2018-11-03 02:37:23 C 00 07 26.23 +15 40 53.3 V I52
2018-11-03 03:20:08 C 00 07 32.47 +15 40 25.9 o 691
2018-11-03 03:26:52 C 00 07 33.47 +15 40 21.1 o 691
2018-11-03 03:33:33 C 00 07 34.37 +15 40 16.8 o 691
2018-11-03 04:49:18 C 00 07 41.920 +15 40 32.35 V 309
2018-11-04 03:55:30 C 00 11 23.379 +15 24 43.93 V 309
2018-11-04 04:06:36 C 00 11 24.905 +15 24 36.05 V 309
2018-11-04 04:11:39 C 00 11 28.86 +15 23 24.5 o 691
2018-11-04 04:18:02 C 00 11 26.479 +15 24 27.90 V 309
2018-11-04 04:18:21 C 00 11 29.79 +15 23 19.9 o 691
2018-11-04 04:25:04 C 00 11 30.70 +15 23 15.6 o 691
2018-11-04 04:29:23 C 00 11 28.051 +15 24 19.78 V 309
2018-11-04 09:15:24 C 00 12 11.14 +15 19 51.1 V I52
2018-11-04 09:20:56 C 00 12 11.90 +15 19 47.6 V I52
2018-11-04 09:21:32 C 00 12 11.96 +15 19 46.9 V I52
2018-11-06 03:10:37 C 00 18 30.73 +14 53 43.8 o 291
2018-11-06 03:17:07 C 00 18 31.54 +14 53 39.8 o 291
2018-11-06 03:23:35 C 00 18 32.38 +14 53 36.1 o 291
2018-11-06 08:37:09 C 00 19 14.510 +14 50 45.39 V T12
2018-11-06 08:37:53 C 00 19 14.601 +14 50 44.92 V T12
2018-11-06 08:39:49 C 00 19 14.834 +14 50 43.79 V T12
2018-11-07 03:07:24 C 00 21 52.74 +14 39 50.1 V I52
2018-11-07 03:12:25 C 00 21 53.34 +14 39 47.2 V I52
2018-11-07 03:17:26 C 00 21 53.95 +14 39 44.6 V I52
2018-11-07 03:18:31 C 00 21 54.10 +14 39 44.3 V I52
2018-11-07 04:32:57 C 00 22 03.08 +14 39 04.5 o 691
2018-11-07 04:39:10 C 00 22 03.82 +14 39 01.0 o 691
2018-11-07 04:45:23 C 00 22 04.54 +14 38 57.5 o 691
2018-11-08 02:37:42 C 00 25 04.24 +14 26 58.9 V I52
2018-11-08 02:39:12 C 00 25 04.48 +14 26 59.1 o 691