518426 (2002 ON4)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4035284667 ± 8.22e-08
Semi-major axis (a)2.1773236645 AU ± 6.73e-09
Inclination (i)10.46166996° ± 6.63e-06
Long. of Asc. Node (Ω)134.81928838° ± 1.49e-05
Arg. of Perihelion (ω)160.91421100° ± 3.11e-05
Mean Anomaly (M)96.33868774° ± 2.03e-05
Mean Motion (n)0.3067805255°/day ± 1.42e-09
Perihelion dist (q)1.29871158 AU ± 1.79e-07
Aphelion dist (Q)3.05593574 AU ± 1.79e-07
Orbital Period3.21280590 yr ± 1.49e-08
Physical Parameters
H (abs. magnitude)19.15
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.391″
Uncertainty0
Orbit TypeAmor
MOID0.287158 AU
Observations Used192
Oppositions15
Arc Total2002-2024
First Observation Used2002-07-09
Last Observation Used2024-03-14
Observations (194)
Date Type RA Dec Mag Band Observatory
2002-07-22 23:02:02 C 20 23 31.98 -07 46 18.7 a 118
2002-07-22 23:08:38 C 20 23 32.25 -07 46 27.5 a 118
2002-07-23 06:51:53 C 20 23 53.70 -07 57 24.4 c 670
2002-07-23 08:07:41 C 20 23 56.51 -07 59 13.3 c 670
2002-07-23 09:41:21 C 20 24 00.09 -08 01 26.8 c 670
2002-07-24 05:55:26 C 20 24 55.44 -08 30 37.6 c 649
2002-07-24 06:00:40 C 20 24 55.62 -08 30 45.2 c 649
2002-07-24 06:05:55 C 20 24 55.77 -08 30 52.8 c 649
2002-07-25 06:14:10 C 20 26 00.99 -09 05 56.4 c 448
2002-07-25 06:26:00 C 20 26 01.47 -09 06 13.5 c 448
2002-07-25 06:36:51 C 20 26 01.81 -09 06 30.1 c 448
2002-07-27 22:47:26 C 20 28 53.91 -10 41 11.8 c 113
2002-07-27 22:49:18 C 20 28 54.05 -10 41 14.2 c 113
2002-07-27 22:51:12 C 20 28 54.10 -10 41 17.5 c 113
2002-07-28 08:54:37 C 20 29 21.78 -10 56 02.8 18.7 c 608
2002-07-28 09:09:45 C 20 29 22.34 -10 56 25.8 18.6 c 608
2002-07-28 09:24:46 C 20 29 22.87 -10 56 48.0 18.5 c 608
2002-07-29 06:52:31 C 20 30 20.30 -11 28 49.5 c 670
2002-07-29 08:12:23 C 20 30 23.31 -11 30 50.0 c 670
2002-07-30 11:20:10 C 20 31 37.29 -12 10 43.0 m 413
2002-07-30 11:23:19 C 20 31 37.38 -12 10 48.0 m 413
2002-07-31 14:56:52 C 20 32 49.79 -12 51 52.2 m 413
2002-07-31 14:58:40 C 20 32 49.87 -12 51 54.8 m 413
2002-07-31 15:00:28 C 20 32 49.93 -12 51 57.5 m 413
2002-08-07 07:35:45 C 20 40 05.29 -16 46 20.0 17.3 c 644
2002-08-07 08:12:59 C 20 40 06.72 -16 47 12.2 17.1 c 644
2002-08-07 08:53:11 C 20 40 08.28 -16 48 08.4 17.2 c 644
2002-08-09 05:57:54 C 20 42 13.29 -17 50 38.9 c 649
2002-08-09 06:07:59 C 20 42 13.69 -17 50 52.8 c 649
2002-08-09 06:18:02 C 20 42 14.08 -17 51 06.3 c 649
2002-08-11 05:38:30 C 20 44 26.88 -18 54 31.7 c 649
2002-08-11 05:47:36 C 20 44 27.17 -18 54 42.9 c 649
2002-08-11 06:02:00 C 20 44 27.77 -18 55 02.5 c 649
2002-08-11 22:22:20 C 20 45 14.51 -19 16 19.6 c 952
2002-08-11 22:31:15 C 20 45 14.80 -19 16 31.9 c 952
2002-08-11 22:34:44 C 20 45 14.98 -19 16 36.5 c 952
2002-08-11 22:43:29 C 20 45 15.31 -19 16 49.6 c 952
2002-08-12 04:58:13 C 20 45 33.02 -19 24 50.8 c 649
2002-08-12 05:21:39 C 20 45 34.00 -19 25 21.3 c 649
2002-08-12 05:31:16 C 20 45 34.36 -19 25 34.1 c 649
2002-08-14 05:28:58 C 20 47 52.27 -20 25 46.1 18.4 c 704
2002-08-14 05:51:33 C 20 47 53.19 -20 26 12.8 18.8 c 704
2002-08-14 06:14:04 C 20 47 54.18 -20 26 41.5 18.4 c 704
2002-08-14 06:36:44 C 20 47 55.02 -20 27 09.0 18.4 c 704
2002-08-14 06:59:17 C 20 47 55.98 -20 27 36.8 18.9 c 704
2002-08-14 22:29:47 C 20 48 41.22 -20 46 27.9 c 215
2002-08-14 22:30:51 C 20 48 41.32 -20 46 28.8 c 215
2002-08-14 22:31:39 C 20 48 41.34 -20 46 29.7 c 215
2002-08-15 05:11:56 C 20 49 01.39 -20 54 25.8 c 699
2002-08-15 05:37:16 C 20 49 02.45 -20 54 55.7 c 699