2021 UN20

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5506909560 ± 6.88e-06
Semi-major axis (a)2.3114766669 AU ± 3.66e-05
Inclination (i)2.29714723° ± 2.28e-05
Long. of Asc. Node (Ω)133.31548450° ± 3.67e-05
Arg. of Perihelion (ω)316.66775034° ± 4.64e-05
Mean Anomaly (M)40.53453036° ± 9.54e-03
Mean Motion (n)0.2804645694°/day ± 6.67e-06
Perihelion dist (q)1.03856737 AU ± 2.29e-05
Aphelion dist (Q)3.58438596 AU ± 5.90e-05
Orbital Period3.51426309 yr ± 8.35e-05
Physical Parameters
H (abs. magnitude)23.62
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.239″
Uncertainty1
Orbit TypeAmor
MOID0.060805 AU
Observations Used125
Oppositions1
Arc Total2021-2022
First Observation Used2021-10-30
Last Observation Used2022-02-11
Observations (126)
Date Type RA Dec Mag Band Observatory
2022-01-13 06:50:39 C 08 24 55.57 +10 10 52.2 o 691
2022-01-13 06:59:22 C 08 24 57.60 +10 11 01.1 o 691
2022-01-13 07:08:04 C 08 24 59.65 +10 11 09.5 o 691
2022-01-13 15:12:14 C 08 27 03.21 +10 19 01.0 V D29
2022-01-13 15:32:36 C 08 27 07.89 +10 19 21.2 V D29
2022-01-13 15:52:58 C 08 27 12.54 +10 19 41.3 V D29
2022-01-26 07:51:27 C 09 17 37.78 +13 47 57.2 V G96
2022-01-26 07:59:38 C 09 17 38.48 +13 48 01.2 V G96
2022-01-26 08:07:50 C 09 17 39.20 +13 48 05.4 V G96
2022-01-26 08:16:01 C 09 17 39.89 +13 48 09.0 V G96
2022-02-01 06:49:55 C 09 29 31.32 +14 47 58.9 V G96
2022-02-01 06:58:07 C 09 29 31.76 +14 48 02.7 V G96
2022-02-01 07:06:19 C 09 29 32.16 +14 48 05.3 V G96
2022-02-01 07:14:33 C 09 29 32.62 +14 48 08.3 V G96
2022-02-02 09:12:23 C 09 31 13.875 +14 57 27.06 U F52
2022-02-02 09:29:01 C 09 31 14.697 +14 57 33.12 U F52
2022-02-02 09:45:38 C 09 31 15.515 +14 57 39.25 U F52
2022-02-02 10:02:20 C 09 31 16.309 +14 57 45.11 U F52
2022-02-09 07:58:34 C 09 39 35.179 +15 45 07.10 U F52
2022-02-09 08:15:59 C 09 39 35.713 +15 45 11.78 U F52
2022-02-09 08:33:24 C 09 39 36.263 +15 45 16.18 U F52
2022-02-09 08:50:43 C 09 39 36.791 +15 45 20.57 U F52
2022-02-11 08:08:07 C 09 41 23.23 +15 55 28.6 V G96
2022-02-11 08:16:12 C 09 41 23.43 +15 55 30.4 V G96
2022-02-11 08:24:17 C 09 41 23.65 +15 55 32.1 V G96
2022-02-11 08:32:22 C 09 41 23.85 +15 55 33.2 V G96