2021 UN

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5945370000
Semi-major axis (a)2.1722517000 AU
Inclination (i)4.79644000°
Long. of Asc. Node (Ω)20.96017000°
Arg. of Perihelion (ω)311.47715000°
Mean Anomaly (M)112.35065000°
Mean Motion (n)0.3078497900°/day
Perihelion dist (q)0.88076770 AU
Aphelion dist (Q)3.46373570 AU
Orbital Period3.20158630 yr
Physical Parameters
H (abs. magnitude)28.85
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date
RMS Residual0.560″
Uncertainty8
Orbit TypeApollo
MOID0.002104 AU
Observations Used13
Oppositions1
Arc Total
First Observation Used
Last Observation Used2021-10-17
Observations (13)
Date Type RA Dec Mag Band Observatory
2021-10-16 09:33:32 C 02 07 58.39 +21 14 45.5 V G96
2021-10-16 09:41:46 C 02 07 59.96 +21 15 29.1 V G96
2021-10-16 09:49:58 C 02 08 01.49 +21 16 13.7 V G96
2021-10-16 09:58:12 C 02 08 02.97 +21 16 55.8 V G96
2021-10-16 10:13:02 C 02 08 05.78 +21 18 14.9 V G96
2021-10-16 10:15:28 C 02 08 06.22 +21 18 27.1 V G96
2021-10-16 10:17:53 C 02 08 06.67 +21 18 39.8 V G96
2021-10-16 11:23:58 C 02 08 19.61 +21 24 15.6 V G96
2021-10-16 11:26:57 C 02 08 20.22 +21 24 29.8 V G96
2021-10-16 11:29:56 C 02 08 20.83 +21 24 44.8 V G96
2021-10-17 04:58:20 C 02 12 24.71 +22 40 53.6 u H21
2021-10-17 05:13:13 C 02 12 26.28 +22 41 48.4 u H21
2021-10-17 05:19:29 C 02 12 26.93 +22 42 11.4 u H21