Asteroid General Data

2021 RP₄

General information

Preliminary designation	2021 RP₄
Group	Apollo
Absolute magnitude	23.06
Approximate diameter (m)	65
Approximate mass (kg)	5.01·10⁸
Number of observations	61
Arc length (days)	31

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	304.197306
a – orbit major semiaxis (astronomical units)	1.97838000
e – orbit eccentricity	0.50339300
ω – orbit ascending node-perihelion angle (degrees)	93.570432
Ω – longitude of orbit ascending node (degrees)	202.638573
i – orbit inclination to the ecliptic plane (degrees)	4.764967

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	319.348996	1.98052045	0.50255296	86.593074	208.052464	4.738998	0.98520402	2.787209
01/21/1858	109.164857	1.97904231	0.50330062	87.619134	207.299559	4.737280	0.98298909	2.784090
01/29/1887	258.628508	1.97962020	0.50256345	88.832432	206.346469	4.743438	0.98473543	2.785309
02/07/1916	48.989523	1.98036197	0.50349769	89.436603	205.821896	4.750339	0.98325430	2.786875
02/14/1945	198.917988	1.97947225	0.50400495	90.663961	204.898975	4.751090	0.98180844	2.784997
02/22/1974	349.647099	1.97944081	0.50260506	91.478608	204.234057	4.757004	0.98456385	2.784931
03/02/2003	140.803421	1.97848533	0.50397742	92.321875	203.543555	4.758014	0.98137340	2.782915
03/09/2032	290.662878	1.97998689	0.50392199	93.575331	202.596327	4.770975	0.98222796	2.786083
03/17/2061	83.024630	1.98047453	0.50323640	94.231758	201.969887	4.782442	0.98382765	2.787113
03/25/2090	233.077833	1.97856854	0.50415103	95.352302	201.104026	4.789345	0.98107117	2.783090
04/03/2119	24.135559	1.97971292	0.50270373	96.432251	200.253676	4.804260	0.98450384	2.785505
04/10/2148	176.836290	1.97878396	0.50315355	97.360140	199.431375	4.816729	0.98315179	2.783545
04/18/2177	328.649782	1.97920242	0.50414497	98.328093	198.716825	4.823572	0.98139747	2.784428

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