2021 UD3

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3369939183 ± 3.41e-04
Semi-major axis (a)1.5308304197 AU ± 8.09e-04
Inclination (i)5.63944732° ± 4.59e-03
Long. of Asc. Node (Ω)39.04417212° ± 1.68e-04
Arg. of Perihelion (ω)324.94363599° ± 3.33e-03
Mean Anomaly (M)67.18015482° ± 6.22e-01
Mean Motion (n)0.5203812628°/day ± 4.12e-04
Perihelion dist (q)1.01494988 AU ± 7.49e-04
Aphelion dist (Q)2.04671096 AU ± 1.20e-03
Orbital Period1.89404645 yr ± 1.50e-03
Physical Parameters
H (abs. magnitude)26.52
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.315″
Uncertainty3
Orbit TypeApollo
MOID0.041124 AU
Observations Used22
Oppositions1
Arc Total2021-2021
First Observation Used2021-10-24
Last Observation Used2021-11-07
Observations (22)
Date Type RA Dec Mag Band Observatory
2021-10-24 09:31:44 C 01 43 46.070 -08 22 02.49 V F51
2021-10-24 09:51:27 C 01 43 49.566 -08 19 07.50 V F51
2021-10-28 06:07:13 C 02 01 42.78 +03 40 16.8 V G96
2021-10-28 06:14:42 C 02 01 43.75 +03 41 07.4 V G96
2021-10-28 06:22:09 C 02 01 44.73 +03 41 57.4 V G96
2021-10-28 06:29:37 C 02 01 45.67 +03 42 47.2 V G96
2021-10-28 08:26:22 C 02 02 00.70 +03 55 47.4 V V06
2021-10-28 08:27:33 C 02 02 00.88 +03 55 54.9 V V06
2021-10-28 08:29:54 C 02 02 01.16 +03 56 11.2 V V06
2021-10-28 22:57:59 C 02 04 23.27 +05 29 48.1 V L01
2021-10-28 23:01:44 C 02 04 23.71 +05 30 11.9 V L01
2021-10-28 23:05:28 C 02 04 24.21 +05 30 35.8 V L01
2021-10-29 00:32:06 C 02 04 35.84 +05 39 32.4 V 033
2021-10-29 00:34:38 C 02 04 36.17 +05 39 48.3 V 033
2021-10-29 00:37:10 C 02 04 36.51 +05 40 03.9 V 033
2021-10-29 01:18:10 C 02 04 51.72 +05 47 26.9 u 807
2021-10-29 01:27:17 C 02 04 52.85 +05 48 24.6 u 807
2021-10-29 01:36:25 C 02 04 54.05 +05 49 22.2 u 807
2021-11-07 05:45:54 C 02 29 57.18 +21 38 33.0 V I52
2021-11-07 05:54:16 C 02 29 57.63 +21 38 57.6 V I52
2021-11-07 06:02:38 C 02 29 58.12 +21 39 21.2 V I52
2021-11-07 06:11:00 C 02 29 58.61 +21 39 44.4 V I52