Asteroid General Data

2021 RP₉

General information

Preliminary designation	2021 RP₉
Group	Apollo
Absolute magnitude	24.40
Approximate diameter (m)	35
Approximate mass (kg)	7.87·10⁷
Number of observations	28
Arc length (days)	12

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	132.333123
a – orbit major semiaxis (astronomical units)	2.33300800
e – orbit eccentricity	0.64450700
ω – orbit ascending node-perihelion angle (degrees)	241.741672
Ω – longitude of orbit ascending node (degrees)	177.130138
i – orbit inclination to the ecliptic plane (degrees)	17.566060

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	343.493678	2.33276570	0.63978180	234.527703	183.830862	18.569319	0.84030466	3.562930
01/21/1858	31.059831	2.33386636	0.64001699	235.736163	182.741723	18.378423	0.84015225	3.565452
01/29/1887	80.290253	2.33763112	0.63918062	236.205748	182.218119	18.300163	0.84346262	3.574083
02/07/1916	128.650148	2.33515410	0.64078948	237.401732	181.086852	18.125014	0.83881191	3.568403
02/14/1945	178.397004	2.33113576	0.64364740	238.594082	180.063592	17.971210	0.83070629	3.559196
02/22/1974	227.506236	2.33157303	0.64469271	239.994079	178.787392	17.784994	0.82842489	3.560198
03/02/2003	275.721550	2.33685561	0.64334677	241.372469	177.547736	17.607607	0.83344709	3.572304
03/09/2032	324.153356	2.33610740	0.64336347	242.788048	176.239958	17.440826	0.83314123	3.570589
03/17/2061	14.774250	2.33362704	0.64553809	243.237465	175.749140	17.398111	0.82718190	3.564904
03/25/2090	63.609604	2.33209454	0.64704853	244.588419	174.517148	17.253589	0.82311619	3.561393
04/03/2119	111.121557	2.33373708	0.64725958	246.077202	173.148736	17.101263	0.82320340	3.565156
04/10/2148	158.971406	2.33665663	0.64567531	247.321009	171.952461	16.962813	0.82793514	3.571848
04/18/2177	210.290376	2.33581622	0.64500478	248.619704	170.721488	16.864465	0.82920360	3.569921

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