2021 ON

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4620089000
Semi-major axis (a)1.9571066000 AU
Inclination (i)11.13029000°
Long. of Asc. Node (Ω)116.01855000°
Arg. of Perihelion (ω)157.23694000°
Mean Anomaly (M)219.83478000°
Mean Motion (n)0.3599833000°/day
Perihelion dist (q)1.05290590 AU
Aphelion dist (Q)2.86130730 AU
Orbital Period2.73792610 yr
Physical Parameters
H (abs. magnitude)24.12
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date
RMS Residual0.420″
Uncertainty8
Orbit TypeAmor
MOID0.053371 AU
Observations Used20
Oppositions1
Arc Total
First Observation Used
Last Observation Used2021-07-20
Observations (20)
Date Type RA Dec Mag Band Observatory
2021-07-14 12:45:47 C 21 53 23.872 -06 47 39.24 V F51
2021-07-19 11:39:44 C 22 27 50.178 -18 22 02.59 U F51
2021-07-19 11:53:26 C 22 27 53.069 -18 23 07.58 U F51
2021-07-19 12:20:56 C 22 27 58.873 -18 25 17.58 U F51
2021-07-19 14:28:13 C 22 28 25.508 -18 35 11.09 V F51
2021-07-19 14:29:08 C 22 28 25.694 -18 35 15.30 V F51
2021-07-19 23:37:39 C 22 30 39.24 -19 17 32.9 V L01
2021-07-19 23:41:44 C 22 30 40.11 -19 17 51.6 V L01
2021-07-19 23:45:11 C 22 30 40.91 -19 18 06.0 V L01
2021-07-19 23:47:22 C 22 30 41.36 -19 18 16.6 V L01
2021-07-19 23:54:06 C 22 30 42.73 -19 18 46.4 V L01
2021-07-20 00:26:42 C 22 30 49.81 -19 19 37.0 V L81
2021-07-20 00:57:18 C 22 30 56.00 -19 21 55.3 V L81
2021-07-20 07:29:00 C 22 32 25.52 -19 52 21.4 u H21
2021-07-20 07:34:17 C 22 32 26.59 -19 52 44.8 u H21
2021-07-20 07:39:34 C 22 32 27.67 -19 53 08.0 u H21
2021-07-20 07:47:41 C 22 32 29.31 -19 53 44.0 u H21
2021-07-20 08:40:43 C 22 32 42.83 -19 57 27.6 V 654
2021-07-20 09:10:30 C 22 32 48.81 -19 59 38.7 V 654
2021-07-20 09:40:09 C 22 32 54.71 -20 01 48.5 V 654