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
2003-06-01 08:04:35 C 15 53 00.67 -03 26 48.4 c 691
2003-06-01 08:46:35 C 15 52 59.28 -03 26 24.2 c 691
2003-06-01 09:24:08 C 15 52 58.04 -03 26 02.4 c 691
2003-06-22 05:38:51 C 15 42 02.79 +00 14 51.5 o 699
2003-06-22 06:04:10 C 15 42 02.44 +00 14 58.4 o 699
2003-06-22 06:29:27 C 15 42 02.16 +00 15 06.5 o 699
2003-06-22 06:54:46 C 15 42 01.89 +00 15 11.7 o 699
2003-07-03 03:57:45 C 15 42 25.43 +00 58 19.4 c 691
2003-07-03 04:35:17 C 15 42 25.75 +00 58 21.8 c 691
2003-07-03 05:12:52 C 15 42 26.07 +00 58 23.9 c 691
2003-07-22 09:34:42 C 15 58 06.41 +00 06 25.2 c 608
2003-07-22 09:50:07 C 15 58 07.24 +00 06 20.2 c 608
2003-07-22 10:06:04 C 15 58 08.09 +00 06 15.5 c 608
2003-07-23 04:15:43 C 15 59 10.48 +00 01 12.5 19.7 c 644
2003-07-23 04:48:14 C 15 59 12.26 +00 01 03.3 19.5 c 644
2003-07-23 05:18:44 C 15 59 13.87 +00 00 55.0 19.3 c 644
2003-07-24 02:45:52 C 16 00 29.38 -00 05 19.3 o H59
2003-07-24 03:01:03 C 16 00 30.20 -00 05 22.8 o H59
2003-07-24 03:16:14 C 16 00 31.20 -00 05 27.7 o H59
2003-07-24 03:31:26 C 16 00 32.07 -00 05 31.1 o H59
2003-07-24 07:12:10 C 16 00 44.97 -00 06 34.8 c 673
2003-07-24 07:17:10 C 16 00 45.27 -00 06 36.5 c 673
2003-07-24 07:21:59 C 16 00 45.56 -00 06 38.2 c 673
2003-07-24 20:55:41 C 16 01 35.46 -00 10 44.0 c 176
2003-07-24 21:02:26 C 16 01 35.81 -00 10 46.3 c 176
2003-07-24 21:09:12 C 16 01 36.16 -00 10 48.6 c 176
2003-07-24 21:16:22 C 16 01 36.53 -00 10 51.0 c 176
2003-08-19 12:35:18 C 16 56 35.16 -04 42 01.9 r 413
2003-08-19 12:41:55 C 16 56 35.91 -04 42 04.9 r 413
2003-09-07 11:18:33 C 17 56 14.63 -08 42 59.5 r 413
2008-06-04 07:25:25 C 17 58 04.18 -01 20 11.4 19.4 c 704
2008-06-04 07:54:51 C 17 58 04.61 -01 19 46.1 20.0 c 704
2008-06-04 08:09:35 C 17 58 04.83 -01 19 33.8 19.7 c 704
2008-06-04 08:24:18 C 17 58 05.07 -01 19 20.3 19.7 c 704
2008-06-09 00:57:11 C 17 59 59.98 +00 15 14.5 r J95
2008-06-09 01:03:04 C 18 00 00.06 +00 15 19.8 r J95
2008-06-09 01:08:55 C 18 00 00.13 +00 15 24.6 r J95
2008-06-09 22:10:07 C 18 00 20.62 +00 32 55.3 r J95
2008-06-09 22:15:50 C 18 00 20.74 +00 33 00.8 r J95
2008-06-09 22:23:26 C 18 00 20.82 +00 33 06.1 r J95
2008-06-13 05:41:07 C 18 01 32.70 +01 38 24.1 o H55
2008-06-13 05:44:45 C 18 01 32.75 +01 38 26.7 o H55
2008-06-13 05:48:12 C 18 01 32.79 +01 38 29.4 o H55
2008-06-21 00:24:51 C 18 04 14.94 +04 02 53.0 c B37
2008-06-21 00:27:16 C 18 04 14.87 +04 02 54.4 c B37
2008-06-21 00:31:31 C 18 04 14.77 +04 02 58.4 c B37
2008-06-23 04:41:15 C 18 05 02.48 +04 39 57.0 r H45
2008-06-23 04:42:58 C 18 05 02.49 +04 39 58.0 r H45
2008-06-23 04:45:41 C 18 05 02.54 +04 40 00.0 r H45
2008-06-23 04:49:26 C 18 05 02.56 +04 40 02.9 r H45