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
2002-08-15 06:02:36 C 20 49 03.51 -20 55 26.7 c 699
2002-08-15 06:27:57 C 20 49 04.59 -20 55 56.7 c 699
2002-08-19 14:03:50 C 20 54 12.752 -22 51 14.27 e 413
2002-08-19 14:06:09 C 20 54 12.849 -22 51 16.61 e 413
2002-08-19 14:08:26 C 20 54 12.959 -22 51 18.96 e 413
2002-08-30 05:44:28 C 21 07 46.62 -26 27 11.0 18.3 c 644
2002-08-30 06:14:28 C 21 07 48.10 -26 27 30.4 18.4 c 644
2002-08-30 06:55:27 C 21 07 50.15 -26 27 56.6 18.0 c 644
2002-08-31 04:50:10 C 21 09 03.66 -26 41 40.8 19.1 c 704
2002-08-31 05:09:56 C 21 09 04.68 -26 41 52.7 19.3 c 704
2002-08-31 05:29:52 C 21 09 05.65 -26 42 05.6 19.7 c 704
2002-10-04 10:41:30 C 22 00 15.99 -28 11 12.5 c 474
2002-10-04 10:45:14 C 22 00 16.20 -28 11 11.7 c 474
2002-10-04 10:49:04 C 22 00 16.45 -28 11 09.9 c 474
2002-10-04 10:56:04 C 22 00 16.94 -28 11 08.4 c 474
2002-10-05 12:02:51 C 22 01 57.85 -28 04 18.3 c 474
2002-10-05 12:11:51 C 22 01 58.37 -28 04 15.5 c 474
2002-10-05 12:24:31 C 22 01 59.12 -28 04 11.6 c 474
2002-10-09 02:58:11 C 22 07 50.68 -27 37 59.4 o 644
2002-10-09 03:43:50 C 22 07 53.62 -27 37 46.3 o 644
2015-04-30 05:19:03 C 21 37 34.24 -06 18 09.5 t 950
2015-04-30 05:21:21 C 21 37 34.57 -06 18 08.5 t 950
2015-04-30 05:23:39 C 21 37 34.89 -06 18 07.6 t 950
2015-04-30 05:25:54 C 21 37 35.22 -06 18 06.6 t 950
2015-04-30 05:28:12 C 21 37 35.51 -06 18 05.6 t 950
2015-04-30 05:30:28 C 21 37 35.86 -06 18 04.6 t 950
2015-10-10 10:33:06 C 02 18 05.053 -08 49 17.91 L F51
2015-10-10 10:47:08 C 02 18 04.341 -08 49 23.14 L F51
2015-10-10 11:01:06 C 02 18 03.634 -08 49 28.52 L F51
2015-10-10 11:15:05 C 02 18 02.915 -08 49 33.45 L F51
2018-04-13 14:08:08 C 16 05 02.803 +02 16 14.10 U F51
2018-04-13 14:21:41 C 16 05 03.012 +02 16 21.44 U F51
2018-04-13 14:34:38 C 16 05 03.215 +02 16 28.59 U F51
2018-04-14 10:11:05 C 16 05 24.84 +02 27 14.8 U G96
2018-04-14 10:18:33 C 16 05 24.93 +02 27 19.5 U G96
2018-04-14 10:26:03 C 16 05 25.04 +02 27 23.3 U G96
2018-04-14 10:33:31 C 16 05 25.18 +02 27 27.5 U G96
2018-04-21 09:51:20 C 16 07 33.78 +04 02 17.3 U G96
2018-04-21 09:58:45 C 16 07 33.83 +04 02 21.5 U G96
2018-04-21 10:06:10 C 16 07 33.87 +04 02 25.6 U G96
2018-04-21 10:13:35 C 16 07 33.90 +04 02 30.2 U G96
2018-05-06 00:19:52 C 16 06 45.71 +07 19 49.4 q A17
2018-05-06 00:37:13 C 16 06 45.41 +07 19 58.2 q A17
2018-05-06 00:53:59 C 16 06 45.14 +07 20 07.2 q A17
2018-05-11 10:27:50 C 16 04 41.19 +08 24 33.1 U G96
2018-05-11 10:36:13 C 16 04 41.02 +08 24 37.0 U G96
2018-05-11 10:51:41 C 16 04 40.67 +08 24 44.1 U G96
2018-05-11 11:01:14 C 16 04 40.49 +08 24 48.3 U G96
2018-05-20 08:06:38 C 15 59 39.06 +09 47 29.5 U 703
2018-05-20 08:14:07 C 15 59 38.85 +09 47 31.0 U 703