Asteroid General Data

2021 RH₁₂

General information

Preliminary designation	2021 RH₁₂
Group	Apollo
Absolute magnitude	28.47
Approximate diameter (m)	5
Approximate mass (kg)	2.84·10⁵
Number of observations	18
Arc length (days)	2

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	347.839871
a – orbit major semiaxis (astronomical units)	1.14216500
e – orbit eccentricity	0.20920500
ω – orbit ascending node-perihelion angle (degrees)	246.780045
Ω – longitude of orbit ascending node (degrees)	174.243420
i – orbit inclination to the ecliptic plane (degrees)	3.728661

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	296.406471	1.10948438	0.19855111	250.318001	177.877880	4.040128	0.88919503	1.168644
01/21/1858	237.114893	1.11025885	0.19838279	251.005644	176.944197	4.084973	0.89000260	1.169868
01/29/1887	166.088058	1.10983651	0.19822202	251.393239	176.755931	4.089380	0.88984248	1.169201
02/07/1916	154.325121	1.10613656	0.19718468	253.082266	176.325113	4.120720	0.88802338	1.163359
02/14/1945	72.167957	1.11961341	0.20087518	250.053600	175.648981	4.063521	0.89471086	1.184685
02/22/1974	252.375102	1.12018052	0.20100723	250.489922	175.230556	4.075481	0.89501613	1.185585
03/02/2003	73.283571	1.11972088	0.20090535	250.709102	174.721983	4.083915	0.89476297	1.184855
03/09/2032	162.562408	1.14228560	0.20932472	246.799099	174.221458	3.728906	0.90317699	1.220851
03/17/2061	85.685474	1.14228349	0.20925425	247.704512	173.529697	3.754420	0.90325581	1.220848
03/25/2090	3.304429	1.14265481	0.20954953	247.848102	173.091715	3.756472	0.90321202	1.221443
04/03/2119	269.106942	1.14402172	0.20963387	247.522805	172.616300	3.745406	0.90419602	1.223635
04/10/2148	168.075331	1.14383101	0.20942391	247.900225	171.969029	3.762506	0.90428546	1.223329
04/18/2177	62.161836	1.13750440	0.20750777	249.939039	171.452654	3.755255	0.90146340	1.213194

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