2020 UM4

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.2579129790 ± 7.34e-05
Semi-major axis (a)1.3463619113 AU ± 1.37e-04
Inclination (i)30.40368237° ± 3.35e-03
Long. of Asc. Node (Ω)207.70514619° ± 2.95e-04
Arg. of Perihelion (ω)155.87203501° ± 2.66e-03
Mean Anomaly (M)104.02229862° ± 1.83e-01
Mean Motion (n)0.6309131084°/day ± 9.65e-05
Perihelion dist (q)0.99911770 AU ± 1.42e-04
Aphelion dist (Q)1.69360612 AU ± 1.99e-04
Orbital Period1.56222191 yr ± 2.39e-04
Physical Parameters
H (abs. magnitude)22.79
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.197″
Uncertainty3
Orbit TypeApollo
MOID0.019955 AU
Observations Used87
Oppositions1
Arc Total2020-2020
First Observation Used2020-10-22
Last Observation Used2020-11-26
Observations (89)
Date Type RA Dec Mag Band Observatory
2020-10-22 02:03:18 C 21 22 10.21 +01 02 46.9 V 703
2020-10-22 02:18:45 C 21 22 24.81 +00 56 09.5 V 703
2020-10-22 02:26:29 C 21 22 32.13 +00 52 50.5 V 703
2020-10-22 04:24:51 C 21 24 24.87 +00 01 46.2 V I52
2020-10-22 04:25:07 C 21 24 25.14 +00 01 39.2 V I52
2020-10-22 04:25:24 C 21 24 25.39 +00 01 32.3 V I52
2020-10-22 04:25:40 C 21 24 25.66 +00 01 25.3 V I52
2020-10-22 06:17:03 C 21 26 12.84 -00 46 39.4 V I52
2020-10-22 06:17:19 C 21 26 13.11 -00 46 46.5 V I52
2020-10-22 06:17:36 C 21 26 13.37 -00 46 53.5 V I52
2020-10-22 06:17:52 C 21 26 13.63 -00 47 00.6 V I52
2020-10-22 08:22:34 C 21 28 25.67 -01 37 09.2 V 474
2020-10-22 08:23:02 C 21 28 26.13 -01 37 21.5 V 474
2020-10-22 08:24:02 C 21 28 27.09 -01 37 47.3 V 474
2020-10-22 08:26:46 C 21 28 29.73 -01 38 58.3 V 474
2020-10-22 08:29:29 C 21 28 32.32 -01 40 08.2 V 474
2020-10-22 18:43:41 C 21 38 49.13 -06 09 17.3 V L01
2020-10-22 18:47:07 C 21 38 52.46 -06 10 45.9 V L01
2020-10-22 18:48:16 C 21 38 53.54 -06 11 14.9 V L01
2020-10-22 18:49:24 C 21 38 54.65 -06 11 44.3 V L01
2020-10-22 18:51:50 C 21 38 57.01 -06 12 47.1 V L01
2020-10-22 19:17:08 C 21 39 20.17 -06 23 40.3 V L04
2020-10-22 19:27:20 C 21 39 30.08 -06 28 02.1 V L04
2020-10-23 00:36:19 C 21 44 43.67 -08 36 06.7 u 807
2020-10-23 00:39:31 C 21 44 46.77 -08 37 28.5 u 807
2020-10-23 00:41:07 C 21 44 48.30 -08 38 08.8 u 807
2020-10-23 00:44:18 C 21 44 51.36 -08 39 29.7 u 807
2020-10-23 00:46:12 C 21 44 56.14 -08 43 39.5 u H21
2020-10-23 00:47:53 C 21 44 57.74 -08 44 22.7 u H21
2020-10-23 00:49:34 C 21 44 59.38 -08 45 05.6 u H21
2020-10-23 00:51:15 C 21 45 01.02 -08 45 48.0 u H21
2020-10-23 00:52:57 C 21 45 02.64 -08 46 31.3 u H21
2020-10-23 00:54:38 C 21 45 04.28 -08 47 14.1 u H21
2020-10-23 00:56:19 C 21 45 05.92 -08 47 57.1 u H21
2020-10-23 00:58:24 C 21 45 07.93 -08 48 49.5 u H21
2020-10-23 01:36:28 C 21 45 48.77 -09 04 38.2 V I52
2020-10-23 01:36:39 C 21 45 48.96 -09 04 43.1 V I52
2020-10-23 01:36:50 C 21 45 49.14 -09 04 48.1 V I52
2020-10-23 01:37:01 C 21 45 49.32 -09 04 52.6 V I52
2020-10-23 02:51:22 C 21 47 00.20 -09 36 21.7 q 858
2020-10-23 03:04:25 C 21 47 12.77 -09 41 51.0 q 858
2020-10-23 03:13:24 C 21 47 21.45 -09 45 37.8 q 858
2020-10-23 03:23:15 C 21 47 30.94 -09 49 46.2 q 858
2020-10-23 03:32:07 C 21 47 39.52 -09 53 29.4 q 858
2020-10-23 09:30:23 C 21 53 40.18 -12 18 42.2 V 474
2020-10-23 09:33:16 C 21 53 42.98 -12 19 54.2 V 474
2020-10-23 09:36:09 C 21 53 45.79 -12 21 05.2 V 474
2020-10-23 09:40:29 C 21 53 50.04 -12 22 52.1 V 474
2020-10-23 18:00:22 C 22 02 19.99 -15 48 44.0 V J95
2020-10-23 18:07:30 C 22 02 26.92 -15 51 33.1 V J95