IAA RAS IAA Minor Planet Database

2020 ON4

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4850230134 ± 1.37e-04
Semi-major axis (a)2.1289559121 AU ± 6.45e-04
Inclination (i)2.62603010° ± 6.95e-04
Long. of Asc. Node (Ω)350.38533438° ± 3.37e-03
Arg. of Perihelion (ω)281.42929555° ± 3.49e-03
Mean Anomaly (M)266.76194291° ± 2.83e-01
Mean Motion (n)0.3172943029°/day ± 1.44e-04
Perihelion dist (q)1.09636330 AU ± 4.43e-04
Aphelion dist (Q)3.16154852 AU ± 1.00e-03
Orbital Period3.10634724 yr ± 1.41e-03
Physical Parameters
H (abs. magnitude)24.30
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.120″
Uncertainty3
Orbit TypeAmor
MOID0.091796 AU
Observations Used17
Oppositions1
Arc Total2020-2020
First Observation Used2020-07-23
Last Observation Used2020-08-19
Observations (18)
Date Type RA Dec Mag Band Observatory
2020-07-23 10:31:25 C 21 51 44.110 -29 10 24.03 – U F51
2020-07-23 10:47:12 C 21 51 44.588 -29 09 59.86 – U F51
2020-07-23 11:02:58 C 21 51 45.060 -29 09 35.25 – U F51
2020-07-24 12:31:09 C 21 52 51.775 -28 29 56.71 – V 568
2020-07-24 12:32:31 C 21 52 51.812 -28 29 54.50 – V 568
2020-07-24 12:33:52 C 21 52 51.847 -28 29 52.37 – V 568
2020-07-24 12:35:14 C 21 52 51.878 -28 29 50.46 – V 568
2020-07-24 15:52:32 C 21 52 59.48 -28 23 50.2 – V 474
2020-07-24 15:57:36 C 21 52 59.58 -28 23 41.8 – V 474
2020-07-24 16:02:40 C 21 52 59.77 -28 23 34.4 – V 474
2020-07-24 16:07:44 C 21 52 59.90 -28 23 26.4 – V 474
2020-07-26 14:41:02 C 21 54 44.87 -27 14 57.8 – V 474
2020-07-26 14:46:06 C 21 54 44.96 -27 14 50.7 – V 474
2020-07-26 14:51:10 C 21 54 45.05 -27 14 43.7 – V 474
2020-08-19 11:17:25 C 21 58 36.178 -18 00 14.85 – U F51
2020-08-19 11:30:29 C 21 58 36.012 -18 00 06.33 – U F51
2020-08-19 11:43:28 C 21 58 35.833 -17 59 57.84 – U F51
2020-08-19 11:56:30 C 21 58 35.675 -17 59 49.67 – U F51