Asteroid General Data

2021 PW₄

General information

Preliminary designation	2021 PW₄
Group	Apollo
Absolute magnitude	24.88
Approximate diameter (m)	28
Approximate mass (kg)	4.05·10⁷
Number of observations	84
Arc length (days)	34

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	165.249437
a – orbit major semiaxis (astronomical units)	1.64209100
e – orbit eccentricity	0.38550900
ω – orbit ascending node-perihelion angle (degrees)	99.863182
Ω – longitude of orbit ascending node (degrees)	188.364475
i – orbit inclination to the ecliptic plane (degrees)	1.197498

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	118.714028	1.64086636	0.38466717	91.713457	195.041043	1.147767	1.00967895	2.101892
01/21/1858	46.811854	1.64125801	0.38467174	92.253012	194.659239	1.151360	1.00991244	2.102645
01/29/1887	343.247899	1.63805850	0.38372478	93.949200	193.241407	1.149160	1.00949486	2.096499
02/07/1916	286.277388	1.63806844	0.38375960	94.425694	192.915179	1.152793	1.00944394	2.096518
02/14/1945	213.051088	1.64183511	0.38521953	96.807783	190.829451	1.173403	1.00936816	2.103754
02/22/1974	144.630355	1.63976508	0.38461778	97.521457	190.285240	1.175673	1.00908227	2.099776
03/02/2003	86.675973	1.63827305	0.38450876	98.289453	189.726612	1.180885	1.00834272	2.096911
03/09/2032	22.055185	1.64190766	0.38542648	99.948422	188.297747	1.198735	1.00907297	2.103893
03/17/2061	307.351946	1.64165377	0.38574262	100.424356	187.976107	1.202991	1.00839794	2.103405
03/25/2090	247.223362	1.63761016	0.38408614	103.637059	185.019389	1.200198	1.00862680	2.095639
04/03/2119	190.333613	1.63830352	0.38458786	104.072444	184.714260	1.205201	1.00823188	2.096970
04/10/2148	132.607009	1.63699383	0.38382715	107.737816	181.121177	1.239842	1.00867116	2.094456
04/18/2177	76.285827	1.64038639	0.38494045	108.587629	180.495190	1.251157	1.00893531	2.100970

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