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
2008-07-25 06:35:20 C 18 29 03.41 +08 27 21.0 r H45
2008-07-25 06:37:09 C 18 29 03.51 +08 27 20.4 r H45
2008-07-28 06:47:18 C 18 33 20.28 +08 11 59.1 r H45
2008-07-28 06:49:13 C 18 33 20.42 +08 11 58.9 r H45
2008-07-28 06:51:55 C 18 33 20.57 +08 11 58.0 r H45
2008-07-28 06:54:10 C 18 33 20.68 +08 11 57.3 r H45
2008-07-28 06:56:16 C 18 33 20.81 +08 11 56.7 r H45
2008-07-31 23:18:46 C 18 39 11.01 +07 44 32.9 c B37
2008-07-31 23:24:07 C 18 39 11.48 +07 44 31.2 c B37
2008-07-31 23:30:33 C 18 39 11.71 +07 44 29.9 c B37
2008-08-03 23:15:33 C 18 44 24.92 +07 15 45.8 c B37
2008-08-03 23:16:52 C 18 44 24.94 +07 15 45.2 c B37
2008-08-03 23:58:10 C 18 44 27.80 +07 15 27.1 c B37
2008-08-04 00:00:37 C 18 44 27.95 +07 15 26.7 c B37
2008-08-04 00:02:14 C 18 44 28.19 +07 15 25.5 c B37
2008-08-06 02:55:47 C 18 48 26.53 +06 51 45.1 r 932
2008-08-06 03:07:43 C 18 48 27.44 +06 51 39.3 r 932
2008-08-06 03:21:22 C 18 48 28.45 +06 51 32.8 r 932
2008-08-07 01:46:01 C 18 50 17.78 +06 40 19.2 r 932
2008-08-07 01:52:08 C 18 50 18.26 +06 40 15.9 r 932
2008-08-07 02:06:33 C 18 50 19.34 +06 40 08.5 r 932
2008-08-07 05:27:11 C 18 50 35.07 +06 38 27.3 r H45
2008-08-07 05:30:39 C 18 50 35.32 +06 38 25.8 r H45
2008-08-07 05:32:18 C 18 50 35.45 +06 38 25.4 r H45
2008-08-07 05:34:21 C 18 50 35.62 +06 38 24.1 r H45
2008-08-07 05:35:57 C 18 50 35.72 +06 38 23.4 r H45
2008-08-07 05:37:34 C 18 50 35.85 +06 38 22.6 r H45
2008-08-09 20:30:07 C 18 55 55.85 +06 04 12.4 v 204
2008-08-09 21:01:42 C 18 55 58.41 +06 03 53.6 v 204
2008-08-09 23:11:33 C 18 56 09.06 +06 02 39.9 r B09
2008-08-09 23:23:53 C 18 56 10.02 +06 02 31.7 r B09
2008-08-14 02:45:02 C 19 05 12.99 +05 02 04.4 o H55
2008-08-14 02:51:20 C 19 05 13.55 +05 02 00.4 o H55
2008-08-14 02:57:40 C 19 05 14.13 +05 01 56.3 o H55
2008-08-31 01:57:50 C 19 48 10.07 +00 08 39.8 o H55
2008-08-31 02:06:06 C 19 48 10.97 +00 08 33.6 o H55
2008-08-31 02:27:29 C 19 48 13.30 +00 08 17.8 o H55
2008-08-31 02:31:26 C 19 48 13.72 +00 08 14.6 o H55
2008-08-31 02:34:38 C 19 48 14.08 +00 08 12.6 o H55
2008-09-23 03:54:57 C 20 52 47.10 -05 36 29.2 o H55
2008-09-23 03:58:49 C 20 52 47.55 -05 36 31.2 o H55
2008-09-23 04:03:08 C 20 52 48.02 -05 36 32.8 o H55
2008-09-23 04:07:00 C 20 52 48.43 -05 36 34.6 o H55
2008-10-07 04:18:15 C 21 30 21.24 -07 26 47.7 r G96
2008-10-07 04:30:59 C 21 30 22.57 -07 26 50.0 r G96
2008-10-07 04:43:45 C 21 30 23.90 -07 26 52.6 r G96
2008-10-07 04:56:28 C 21 30 25.20 -07 26 55.2 r G96
2013-05-22 08:40:13 C 19 42 14.97 -03 53 37.1 u 807
2013-05-22 08:48:02 C 19 42 15.72 -03 53 30.2 u 807
2013-05-22 09:05:35 C 19 42 17.35 -03 53 14.2 u 807