Asteroid General Data

2021 RH₄

General information

Preliminary designation	2021 RH₄
Group	Apollo
Absolute magnitude	25.06
Approximate diameter (m)	26
Approximate mass (kg)	3.16·10⁷
Number of observations	17
Arc length (days)	33

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	30.272627
a – orbit major semiaxis (astronomical units)	1.77554800
e – orbit eccentricity	0.42785900
ω – orbit ascending node-perihelion angle (degrees)	237.173083
Ω – longitude of orbit ascending node (degrees)	145.351697
i – orbit inclination to the ecliptic plane (degrees)	4.027103

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	223.850501	1.77697072	0.42913481	233.677096	147.765028	4.076198	1.01441072	2.368760
01/21/1858	317.820742	1.77541882	0.42880843	234.263380	147.366475	4.063419	1.01410427	2.365657
01/29/1887	50.426047	1.77587750	0.42935888	234.701399	147.049022	4.060846	1.01338872	2.366574
02/07/1916	142.454035	1.77785884	0.42924574	235.292441	146.608018	4.052774	1.01472051	2.370536
02/14/1945	231.388454	1.77671129	0.42927544	235.649720	146.382301	4.053936	1.01401277	2.368241
02/22/1974	319.882092	1.77781004	0.42899488	236.068357	146.096251	4.051917	1.01513864	2.370438
03/02/2003	51.227925	1.77717263	0.42841513	236.681285	145.692491	4.039252	1.01580499	2.369164
03/09/2032	143.319308	1.77547115	0.42796665	237.290722	145.285758	4.026591	1.01562871	2.365762
03/17/2061	236.588170	1.77698202	0.42809416	237.738571	144.976084	4.025514	1.01626640	2.368782
03/25/2090	328.862642	1.77624358	0.42765872	238.206309	144.703355	4.023947	1.01661753	2.367306
04/03/2119	57.711701	1.77675903	0.42794144	238.770549	144.285908	4.019514	1.01641020	2.368337
04/10/2148	147.216910	1.77800167	0.42801041	239.151923	144.041585	4.018045	1.01699845	2.370822
04/18/2177	238.055121	1.77634592	0.42729275	239.797409	143.616764	4.007321	1.01732619	2.367511

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