Asteroid General Data

2021 HW₁

General information

Preliminary designation	2021 HW₁
Group	Apollo
Absolute magnitude	25.03
Approximate diameter (m)	26
Approximate mass (kg)	3.30·10⁷
Number of observations	60
Arc length (days)	7

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	304.206846
a – orbit major semiaxis (astronomical units)	2.01855900
e – orbit eccentricity	0.57480100
ω – orbit ascending node-perihelion angle (degrees)	76.001792
Ω – longitude of orbit ascending node (degrees)	193.544479
i – orbit inclination to the ecliptic plane (degrees)	7.308766

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	332.521145	2.01942993	0.57778231	68.442040	199.778152	7.481222	0.85263905	2.869748
01/21/1858	9.477732	2.02163355	0.57470251	69.274746	199.026791	7.460814	0.85979567	2.874447
01/29/1887	42.692825	2.01966324	0.57631799	71.197655	197.616071	7.408536	0.85569499	2.870246
02/07/1916	87.266467	2.01578284	0.57779040	71.690783	197.149376	7.401447	0.85108287	2.861978
02/14/1945	133.659949	2.01910560	0.57441788	72.907391	196.100967	7.375365	0.85929524	2.869057
02/22/1974	175.148025	2.01747967	0.57621054	74.340514	195.068033	7.340188	0.85498662	2.865592
03/02/2003	224.828072	2.01607508	0.57793772	74.872863	194.482608	7.334882	0.85090923	2.862600
03/09/2032	271.715848	2.01821720	0.57519692	76.045073	193.511676	7.308836	0.85734488	2.867164
03/17/2061	316.081817	2.01505149	0.57835765	77.661595	192.273675	7.279328	0.84963105	2.860420
03/25/2090	9.916927	2.01517930	0.57832983	78.074954	191.781925	7.265199	0.84974099	2.860692
04/03/2119	57.414384	2.01816578	0.57520507	79.190590	190.862791	7.252750	0.85730660	2.867054
04/10/2148	102.862179	2.01599554	0.57865087	80.829389	189.570413	7.230854	0.84943797	2.862431
04/18/2177	153.705712	2.01504775	0.57876994	81.252613	189.102961	7.231861	0.84879869	2.860412

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