2021 UA

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.2697156520 ± 7.26e-04
Semi-major axis (a)1.3845563430 AU ± 1.67e-03
Inclination (i)28.71953869° ± 4.40e-02
Long. of Asc. Node (Ω)23.77225182° ± 2.51e-03
Arg. of Perihelion (ω)59.90288103° ± 7.75e-02
Mean Anomaly (M)150.09963719° ± 1.53e+00
Mean Motion (n)0.6049873945°/day ± 1.10e-03
Perihelion dist (q)1.01111983 AU ± 1.58e-03
Aphelion dist (Q)1.75799286 AU ± 2.35e-03
Orbital Period1.62916830 yr ± 2.95e-03
Physical Parameters
H (abs. magnitude)24.14
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.376″
Uncertainty4
Orbit TypeApollo
MOID0.122776 AU
Observations Used24
Oppositions1
Arc Total2021-2021
First Observation Used2021-10-10
Last Observation Used2021-10-24
Observations (24)
Date Type RA Dec Mag Band Observatory
2021-10-10 09:20:33 C 02 43 41.45 +00 17 38.3 V G96
2021-10-10 09:35:28 C 02 43 38.60 +00 18 58.4 V G96
2021-10-16 09:35:33 C 02 10 00.67 +16 30 36.7 V G96
2021-10-16 09:43:47 C 02 09 58.04 +16 31 42.9 V G96
2021-10-16 09:51:59 C 02 09 55.45 +16 32 48.9 V G96
2021-10-16 10:00:13 C 02 09 52.74 +16 33 55.6 V G96
2021-10-16 11:32:43 C 02 09 23.46 +16 46 19.8 V G96
2021-10-16 11:35:06 C 02 09 22.70 +16 46 38.6 V G96
2021-10-16 22:57:52 C 02 05 52.88 +18 19 50.6 V L01
2021-10-16 23:00:37 C 02 05 51.99 +18 20 13.2 V L01
2021-10-16 23:04:09 C 02 05 50.74 +18 20 43.0 V L01
2021-10-16 23:07:42 C 02 05 49.59 +18 21 11.9 V L01
2021-10-16 23:10:27 C 02 05 48.72 +18 21 34.5 V L01
2021-10-17 05:27:33 C 02 03 47.12 +19 14 02.7 u H21
2021-10-17 05:35:37 C 02 03 44.35 +19 15 10.6 u H21
2021-10-17 05:43:42 C 02 03 41.56 +19 16 18.1 u H21
2021-10-17 05:53:00 C 02 03 38.39 +19 17 36.1 u H21
2021-10-18 04:47:37 C 01 55 48.43 +22 32 49.7 u H21
2021-10-18 04:55:42 C 01 55 45.41 +22 33 59.8 u H21
2021-10-18 04:59:45 C 01 55 43.92 +22 34 35.0 u H21
2021-10-24 06:23:12 C 00 47 30.94 +43 24 27.1 V G96
2021-10-24 06:30:41 C 00 47 26.36 +43 25 24.3 V G96
2021-10-24 06:38:12 C 00 47 21.75 +43 26 21.8 V G96
2021-10-24 06:45:41 C 00 47 17.03 +43 27 20.2 V G96