Asteroid General Data

1998 OH (12538)

General information

Preliminary designation	1998 OH
Number	12538
Group	Apollo
Absolute magnitude	15.96
Approximate diameter (m)	1 700
Approximate mass (kg)	9.12·10¹²
Number of observations	10590
Arc length (days)	13981

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	317.507771
a – orbit major semiaxis (astronomical units)	1.54158400
e – orbit eccentricity	0.40597600
ω – orbit ascending node-perihelion angle (degrees)	321.783931
Ω – longitude of orbit ascending node (degrees)	220.685067
i – orbit inclination to the ecliptic plane (degrees)	24.536282

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	190.008676	1.54018851	0.40807035	320.238273	221.902706	24.354605	0.91168325	1.911443
01/21/1858	256.665014	1.53993050	0.40747260	320.462960	221.708430	24.390915	0.91245101	1.910963
01/29/1887	321.772744	1.54049380	0.40751240	320.682255	221.541772	24.407305	0.91272348	1.912012
02/07/1916	25.720849	1.54002377	0.40730171	320.895123	221.348903	24.440746	0.91276945	1.911137
02/14/1945	89.316180	1.54096350	0.40681692	321.138600	221.183426	24.460748	0.91407348	1.912886
02/22/1974	151.298743	1.54091235	0.40644007	321.365658	221.005539	24.487960	0.91462382	1.912791
03/02/2003	209.006100	1.54140535	0.40615703	321.592518	220.825671	24.512412	0.91535273	1.913709
03/09/2032	267.310661	1.54167287	0.40582804	321.814420	220.669744	24.537755	0.91601880	1.914207
03/17/2061	323.584024	1.54213286	0.40546345	322.017045	220.483078	24.560370	0.91685434	1.915064
03/25/2090	20.758608	1.54167848	0.40513506	322.252000	220.312215	24.591456	0.91709047	1.914218
04/03/2119	77.095804	1.54234769	0.40488006	322.519996	220.129851	24.620161	0.91788187	1.915464
04/10/2148	133.092956	1.54164252	0.40448237	322.657947	219.962849	24.644539	0.91807530	1.914151
04/18/2177	191.257492	1.54219220	0.40393633	322.886277	219.782949	24.670309	0.91924475	1.915175

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