2021 UK20

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3851437895 ± 2.00e+00
Semi-major axis (a)1.6093673917 AU ± 3.00e+00
Inclination (i)1.01146081° ± 4.00e+00
Long. of Asc. Node (Ω)27.81538972° ± 5.00e+00
Arg. of Perihelion (ω)342.56226864° ± 6.00e+00
Mean Anomaly (M)7.45995191° ± 1.13e+00
Mean Motion (n)0.4827485200°/day ± 1.35e+00
Perihelion dist (q)0.98941950 AU ± 3.71e+00
Aphelion dist (Q)2.22931690 AU ± 5.26e+00
Orbital Period2.04165860 yr ± 5.71e+00
Physical Parameters
H (abs. magnitude)28.50
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-04-18
RMS Residual0.569″
Uncertainty4
Orbit TypeApollo
MOID0.000991 AU
Observations Used9
Oppositions1
Arc Total2021-2021
First Observation Used
Last Observation Used2021-10-30
Observations (9)
Date Type RA Dec Mag Band Observatory
2021-10-29 10:38:39 C 04 35 32.00 +27 18 54.6 V V00
2021-10-29 10:45:42 C 04 35 32.94 +27 18 56.8 V V00
2021-10-29 10:52:42 C 04 35 33.85 +27 18 59.7 V V00
2021-10-29 10:59:43 C 04 35 34.77 +27 19 02.4 V V00
2021-10-29 11:58:27 C 04 35 42.80 +27 19 21.6 V 291
2021-10-29 12:15:57 C 04 35 45.29 +27 19 25.8 V 291
2021-10-29 12:33:28 C 04 35 47.81 +27 19 29.6 V 291
2021-10-30 08:23:33 C 04 39 41.81 +27 29 50.1 V I52
2021-10-30 08:32:23 C 04 39 42.66 +27 29 53.8 V I52