Asteroid General Data

2021 JH₄

General information

Preliminary designation	2021 JH₄
Group	Apollo
Absolute magnitude	25.58
Approximate diameter (m)	20
Approximate mass (kg)	1.54·10⁷
Number of observations	24
Arc length (days)	27

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	85.996138
a – orbit major semiaxis (astronomical units)	2.63454100
e – orbit eccentricity	0.62981300
ω – orbit ascending node-perihelion angle (degrees)	209.554264
Ω – longitude of orbit ascending node (degrees)	41.159220
i – orbit inclination to the ecliptic plane (degrees)	2.679185

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	288.718858	2.62636758	0.62853837	195.047345	52.181034	3.989078	0.97559477	4.256316
01/21/1858	216.285975	2.62817315	0.62945944	194.977400	51.950997	3.963884	0.97384475	4.260706
01/29/1887	156.013799	2.62642686	0.63168281	199.076760	49.295565	3.546947	0.96735815	4.256460
02/07/1916	89.533568	2.62632100	0.63178538	199.119414	49.125304	3.536473	0.96704979	4.256203
02/14/1945	29.209286	2.63289073	0.63059405	204.042085	45.620286	3.089987	0.97260549	4.272183
02/22/1974	318.370556	2.62209724	0.63064966	204.243357	45.412997	3.086362	0.96847251	4.245940
03/02/2003	263.792561	2.63382821	0.62696922	209.347422	41.622147	2.725921	0.98249900	4.274465
03/09/2032	187.090070	2.63526033	0.63023850	209.590111	41.148898	2.676826	0.97441782	4.277952
03/17/2061	124.821755	2.63251967	0.63316113	215.488479	36.394424	2.380692	0.96571054	4.271280
03/25/2090	53.291150	2.61979947	0.63805562	216.048202	35.755969	2.358513	0.94822168	4.240360
04/03/2119	348.214000	2.62858444	0.63370951	226.171475	26.944690	1.967844	0.96282549	4.261706
04/10/2148	286.706651	2.60897300	0.64190132	228.422162	24.717760	1.867333	0.93426978	4.214101
04/18/2177	212.886975	2.64137227	0.63058168	240.402413	13.918392	1.603366	0.97577132	4.292843

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