Asteroid General Data

2021 PC₉

General information

Preliminary designation	2021 PC₉
Group	Apollo
Absolute magnitude	21.18
Approximate diameter (m)	150
Approximate mass (kg)	6.73·10⁹
Number of observations	62
Arc length (days)	3721

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	42.195367
a – orbit major semiaxis (astronomical units)	1.84707700
e – orbit eccentricity	0.66715600
ω – orbit ascending node-perihelion angle (degrees)	267.877393
Ω – longitude of orbit ascending node (degrees)	315.363710
i – orbit inclination to the ecliptic plane (degrees)	11.302879

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	148.704202	1.84652249	0.66837716	259.898118	322.791718	11.402252	0.61234903	2.509184
01/21/1858	349.260405	1.84667576	0.66808464	261.144839	321.642874	11.367800	0.61294004	2.509496
01/29/1887	192.736587	1.84758850	0.66753474	262.450074	320.430732	11.365207	0.61425898	2.511357
02/07/1916	32.452767	1.84786049	0.66808404	263.105182	319.737324	11.349911	0.61333439	2.511912
02/14/1945	229.224044	1.84973431	0.66778598	264.500248	318.467485	11.333769	0.61450767	2.515734
02/22/1974	62.362259	1.84993920	0.66786632	265.866513	317.270215	11.313998	0.61442711	2.516152
03/02/2003	264.390346	1.84580365	0.66833975	267.195487	316.053243	11.306469	0.61217971	2.507719
03/09/2032	107.806180	1.84601657	0.66729548	267.967711	315.279234	11.301623	0.61417805	2.508153
03/17/2061	309.863999	1.84903481	0.66719355	269.536078	313.883527	11.300684	0.61537071	2.514307
03/25/2090	149.449127	1.84660360	0.66874172	270.533659	312.960234	11.298146	0.61170273	2.509349
04/03/2119	354.636132	1.84559530	0.66832397	271.737821	311.837267	11.292215	0.61213972	2.507294
04/10/2148	200.715845	1.84642072	0.66740333	272.999989	310.659986	11.298317	0.61411338	2.508977
04/18/2177	48.434838	1.84375173	0.66791330	273.686201	309.911352	11.305643	0.61228543	2.503538

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