Asteroid General Data

2021 RB₂₅₃

General information

Preliminary designation	2021 RB₂₅₃
Group	Amor
Absolute magnitude	20.69
Approximate diameter (m)	190
Approximate mass (kg)	1.32·10¹⁰
Number of observations	24
Arc length (days)	4066

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	150.908830
a – orbit major semiaxis (astronomical units)	2.37833900
e – orbit eccentricity	0.51289900
ω – orbit ascending node-perihelion angle (degrees)	90.754883
Ω – longitude of orbit ascending node (degrees)	213.519653
i – orbit inclination to the ecliptic plane (degrees)	8.693632

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	198.488941	2.38351930	0.51002982	81.293519	221.481341	8.756226	1.16785338	3.679837
01/21/1858	162.183015	2.37680151	0.51538969	82.474627	220.472463	8.736033	1.15182252	3.664291
01/29/1887	124.974789	2.38190531	0.51244021	84.781940	218.675878	8.713717	1.16132126	3.676100
02/07/1916	92.558732	2.37652539	0.51538990	85.122472	218.197074	8.714762	1.15168820	3.663653
02/14/1945	55.560257	2.37754549	0.51480394	87.705348	216.224701	8.698660	1.15357572	3.666012
02/22/1974	27.458170	2.37663704	0.51378441	87.962686	215.784304	8.707417	1.15555797	3.663911
03/02/2003	354.383120	2.37419305	0.51616336	90.325125	213.964546	8.699021	1.14872158	3.658261
03/09/2032	327.750490	2.37804054	0.51153206	91.389979	213.006997	8.714311	1.16159656	3.667157
03/17/2061	301.372267	2.37175617	0.51616270	92.771180	211.817844	8.713698	1.14754410	3.652630
03/25/2090	274.154152	2.37459182	0.51391591	95.016288	210.082489	8.731612	1.15425129	3.659182
04/03/2119	252.414036	2.37263287	0.51518789	95.282224	209.639640	8.738495	1.15028114	3.654655
04/10/2148	223.675500	2.37247281	0.51654529	97.697860	207.764830	8.762888	1.14698316	3.654286
04/18/2177	199.254842	2.37746737	0.51342265	98.246541	207.183694	8.780378	1.15682177	3.665831

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