2021 UD

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3609193000 ± 8.46e-04
Semi-major axis (a)1.7557969000 AU ± 2.56e-03
Inclination (i)29.46564000° ± 3.10e-02
Long. of Asc. Node (Ω)205.89608000° ± 2.26e-03
Arg. of Perihelion (ω)165.36866000° ± 8.13e-03
Mean Anomaly (M)279.96760000° ± 1.41e+00
Mean Motion (n)0.4236358000°/day ± 9.25e-04
Perihelion dist (q)1.12209590 AU ± 2.21e-03
Aphelion dist (Q)2.38949790 AU ± 3.78e-03
Orbital Period2.32654480 yr ± 5.08e-03
Physical Parameters
H (abs. magnitude)24.64
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date
RMS Residual0.570″
Uncertainty8
Orbit TypeAmor
MOID0.132532 AU
Observations Used18
Oppositions1
Arc Total
First Observation Used
Last Observation Used2021-10-25
Observations (18)
Date Type RA Dec Mag Band Observatory
2021-10-16 09:38:15 C 02 22 05.83 +18 51 46.1 V G96
2021-10-16 09:46:29 C 02 22 06.90 +18 50 28.5 V G96
2021-10-16 09:54:42 C 02 22 07.96 +18 49 11.2 V G96
2021-10-16 10:02:54 C 02 22 09.03 +18 47 53.3 V G96
2021-10-16 11:41:57 C 02 22 22.07 +18 32 14.4 V G96
2021-10-16 11:44:56 C 02 22 22.49 +18 31 46.0 V G96
2021-10-16 11:47:54 C 02 22 22.88 +18 31 17.7 V G96
2021-10-17 06:32:30 C 02 25 05.62 +15 34 43.8 V G96
2021-10-17 06:36:05 C 02 25 06.08 +15 34 10.5 V G96
2021-10-18 06:42:36 C 02 28 17.99 +11 48 21.1 u H21
2021-10-18 06:54:44 C 02 28 19.37 +11 46 28.4 u H21
2021-10-18 07:00:17 C 02 28 21.41 +11 45 43.6 V G96
2021-10-18 07:05:28 C 02 28 21.99 +11 44 55.4 V G96
2021-10-18 07:07:15 C 02 28 20.83 +11 44 31.3 u H21
2021-10-18 07:16:28 C 02 28 23.24 +11 43 13.1 V G96
2021-10-25 08:04:20 C 02 46 17.45 -11 11 01.8 V 807
2021-10-25 08:13:17 C 02 46 18.14 -11 12 01.1 V 807
2021-10-25 08:22:15 C 02 46 18.79 -11 13 00.4 V 807