2021 UO4

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.1040935416 ± 1.13e-04
Semi-major axis (a)1.0656691243 AU ± 1.29e-04
Inclination (i)14.76171256° ± 1.26e-02
Long. of Asc. Node (Ω)37.01572729° ± 6.49e-04
Arg. of Perihelion (ω)280.64636781° ± 2.45e-02
Mean Anomaly (M)316.64863701° ± 2.77e-01
Mean Motion (n)0.8959395358°/day ± 1.62e-04
Perihelion dist (q)0.95473985 AU ± 1.67e-04
Aphelion dist (Q)1.17659840 AU ± 1.87e-04
Orbital Period1.10010357 yr ± 1.99e-04
Physical Parameters
H (abs. magnitude)26.32
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.407″
Uncertainty3
Orbit TypeApollo
MOID0.036248 AU
Observations Used31
Oppositions1
Arc Total2021-2021
First Observation Used2021-10-30
Last Observation Used2021-11-04
Observations (34)
Date Type RA Dec Mag Band Observatory
2021-10-30 01:40:29 C 03 25 17.98 +20 18 51.7 o K88
2021-10-30 01:43:20 C 03 25 16.40 +20 19 26.3 o K88
2021-10-30 02:09:46 C 03 25 01.15 +20 24 57.8 o K88
2021-10-30 02:14:16 C 03 24 58.54 +20 25 55.7 o K88
2021-10-30 02:23:40 C 03 24 53.17 +20 27 51.6 o K88
2021-10-30 02:24:50 C 03 24 52.41 +20 28 07.4 o K88
2021-10-30 02:30:44 C 03 24 49.01 +20 29 21.9 o K88
2021-10-30 02:39:58 C 03 24 43.74 +20 31 17.3 o K88
2021-10-30 02:47:46 C 03 24 39.21 +20 32 54.2 o K88
2021-10-30 03:05:08 C 03 24 29.36 +20 36 32.2 o K88
2021-10-30 03:24:29 C 03 24 19.64 +20 40 30.6 V 033
2021-10-30 03:25:38 C 03 24 19.00 +20 40 45.3 V 033
2021-10-30 03:26:48 C 03 24 18.33 +20 40 59.3 V 033
2021-10-30 03:45:12 C 03 24 06.82 +20 45 02.4 V L01
2021-10-30 03:48:11 C 03 24 05.09 +20 45 39.6 V L01
2021-10-30 03:51:09 C 03 24 03.41 +20 46 17.2 V L01
2021-10-30 03:54:42 C 03 24 01.42 +20 47 00.8 V L01
2021-10-30 04:52:02 C 03 23 47.70 +20 59 47.1 V H01
2021-10-30 04:56:06 C 03 23 45.34 +21 00 38.8 V H01
2021-10-30 05:10:37 C 03 23 36.91 +21 03 43.8 V H01
2021-10-30 05:21:46 C 03 23 30.40 +21 06 05.8 V H01
2021-10-30 20:06:58 C 03 15 30.81 +24 04 45.3 V J95
2021-10-30 20:31:11 C 03 15 17.34 +24 09 36.9 V J95
2021-10-30 20:51:13 C 03 15 04.30 +24 13 56.0 X G02
2021-10-30 21:06:51 C 03 14 55.22 +24 17 03.5 X G02
2021-10-30 21:22:30 C 03 14 46.26 +24 20 08.1 X G02
2021-10-30 22:20:51 C 03 14 12.35 +24 31 44.6 o K88
2021-10-31 00:42:10 C 03 12 49.95 +24 59 10.1 o K88
2021-11-01 00:25:13 C 03 00 04.92 +29 19 37.2 o K88
2021-11-01 00:32:12 C 03 00 00.83 +29 20 49.4 o K88
2021-11-04 06:18:14 C 02 20 18.16 +40 12 33.8 V G96
2021-11-04 06:25:48 C 02 20 14.14 +40 13 23.8 V G96
2021-11-04 06:33:22 C 02 20 10.09 +40 14 12.6 V G96
2021-11-04 06:40:58 C 02 20 06.05 +40 15 02.8 V G96