612558 (2003 OB4)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5547616970 ± 3.90e-08
Semi-major axis (a)2.9071352242 AU ± 8.82e-09
Inclination (i)8.11437520° ± 3.37e-06
Long. of Asc. Node (Ω)194.87846125° ± 2.12e-05
Arg. of Perihelion (ω)112.44712692° ± 3.29e-05
Mean Anomaly (M)172.97929427° ± 6.53e-06
Mean Motion (n)0.1988448861°/day ± 9.05e-10
Perihelion dist (q)1.29436795 AU ± 1.13e-07
Aphelion dist (Q)4.51990249 AU ± 1.14e-07
Orbital Period4.95675953 yr ± 2.26e-08
Physical Parameters
H (abs. magnitude)19.52
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.338″
Uncertainty0
Orbit TypeAmor
MOID0.314683 AU
Observations Used334
Oppositions16
Arc Total2003-2023
First Observation Used2003-06-01
Last Observation Used2023-10-16
Observations (356)
Date Type RA Dec Mag Band Observatory
2018-08-14 19:09:13 C 00 18 02.25 +17 42 15.6 q D29
2018-08-14 19:10:29 C 00 18 02.22 +17 42 15.6 q D29
2018-08-14 19:29:34 C 00 18 02.97 +17 42 11.2 q D29
2018-08-14 19:30:50 C 00 18 03.01 +17 42 10.9 q D29
2018-08-14 19:49:56 C 00 18 03.78 +17 42 05.4 q D29
2018-08-14 19:51:13 C 00 18 03.80 +17 42 05.6 q D29
2018-08-23 17:40:03 C 00 25 16.14 +16 27 29.6 q D29
2018-08-23 18:00:23 C 00 25 16.47 +16 27 22.2 q D29
2018-09-04 08:24:14 C 00 28 50.55 +13 49 18.4 U I41
2018-09-04 09:53:01 C 00 28 50.35 +13 48 18.8 U I41
2018-09-06 07:15:09 C 00 28 52.89 +13 17 14.1 V 703
2018-09-06 07:22:43 C 00 28 52.96 +13 17 08.8 V 703
2018-09-06 07:30:17 C 00 28 52.92 +13 17 02.9 V 703
2018-09-06 07:37:51 C 00 28 53.01 +13 16 59.0 V 703
2018-09-09 07:30:38 C 00 28 40.68 +12 25 25.2 V 703
2018-09-09 07:38:16 C 00 28 40.61 +12 25 19.6 V 703
2018-09-09 07:45:54 C 00 28 40.46 +12 25 14.4 V 703
2018-09-09 07:53:32 C 00 28 40.39 +12 25 08.8 V 703
2018-09-10 06:20:03 C 00 28 33.44 +12 08 33.0 V G96
2018-09-10 06:27:28 C 00 28 33.37 +12 08 27.2 V G96
2018-09-10 06:34:54 C 00 28 33.30 +12 08 21.8 V G96
2018-09-10 06:42:20 C 00 28 33.22 +12 08 16.3 V G96
2018-09-12 07:16:07 C 00 28 12.19 +11 31 43.4 703
2018-09-12 07:24:20 C 00 28 12.10 +11 31 37.7 703
2018-09-12 07:32:33 C 00 28 12.07 +11 31 31.2 703
2018-09-12 07:42:39 C 00 28 11.91 +11 31 23.1 703
2018-09-12 07:52:27 C 00 28 11.89 +11 31 15.2 U I41
2018-09-12 09:25:35 C 00 28 10.73 +11 30 04.1 U I41
2018-09-14 08:34:03 C 00 27 44.79 +10 53 52.9 U I41
2018-09-14 10:11:01 C 00 27 43.40 +10 52 37.9 U I41
2018-09-15 07:35:01 C 00 27 30.50 +10 36 03.0 V 703
2018-09-15 07:43:10 C 00 27 30.29 +10 35 56.9 V 703
2018-09-15 07:51:18 C 00 27 30.21 +10 35 50.6 V 703
2018-09-15 07:59:26 C 00 27 30.03 +10 35 43.6 V 703
2018-09-17 08:22:37 C 00 26 56.38 +09 57 57.8 U I41
2018-09-17 09:15:57 C 00 26 55.52 +09 57 15.6 U I41
2018-09-18 06:25:16 C 00 26 40.24 +09 40 43.6 V 703
2018-09-18 06:32:50 C 00 26 40.04 +09 40 36.5 V 703
2018-09-18 06:40:23 C 00 26 40.00 +09 40 29.4 V 703
2018-09-18 06:47:57 C 00 26 39.86 +09 40 24.2 V 703
2018-09-18 09:21:49 C 00 26 37.35 +09 38 23.4 U I41
2018-09-18 09:23:12 C 00 26 37.33 +09 38 22.2 U I41
2018-09-21 08:26:13 C 00 25 40.19 +08 42 46.9 U I41
2018-09-21 09:24:44 C 00 25 39.16 +08 42 01.0 U I41
2018-09-30 08:15:21 C 00 22 34.79 +06 00 08.7 V G96
2018-09-30 08:23:28 C 00 22 34.65 +06 00 03.3 V G96
2018-09-30 08:31:34 C 00 22 34.52 +05 59 57.4 V G96
2018-09-30 08:39:40 C 00 22 34.36 +05 59 51.7 V G96
2018-10-02 08:47:48 C 00 21 56.247 +05 26 01.90 U F52
2018-10-02 08:48:47 C 00 21 56.235 +05 26 01.29 U F52