Asteroid General Data

2012 DE₃₁

General information

Preliminary designation	2012 DE₃₁
Group	Apollo
Absolute magnitude	21.80
Approximate diameter (m)	120
Approximate mass (kg)	2.86·10⁹
Number of observations	42
Arc length (days)	22

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	355.650864
a – orbit major semiaxis (astronomical units)	1.15029100
e – orbit eccentricity	0.37274400
ω – orbit ascending node-perihelion angle (degrees)	262.194978
Ω – longitude of orbit ascending node (degrees)	141.624476
i – orbit inclination to the ecliptic plane (degrees)	29.691436

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	263.998049	1.14884261	0.37252880	261.681373	142.517170	29.667371	0.72086565	1.231378
01/21/1858	99.926471	1.15031372	0.37310073	261.740217	142.366040	29.676262	0.72113083	1.233744
01/29/1887	285.382791	1.15058853	0.37308098	261.830342	142.239691	29.682883	0.72132584	1.234186
02/07/1916	113.187539	1.15014702	0.37279220	261.878929	142.112381	29.687353	0.72138118	1.233476
02/14/1945	304.717261	1.14965393	0.37265414	261.975918	141.987096	29.692686	0.72123063	1.232683
02/22/1974	136.724854	1.15007129	0.37270565	262.108190	141.853219	29.691535	0.72143323	1.233354
03/02/2003	325.681870	1.15058963	0.37287640	262.156453	141.728513	29.690617	0.72156191	1.234188
03/09/2032	152.599517	1.15039066	0.37290109	262.231985	141.598844	29.695032	0.72140873	1.233868
03/17/2061	344.597496	1.14931156	0.37218888	262.337055	141.462571	29.704196	0.72155057	1.232132
03/25/2090	194.347969	1.14745970	0.37163396	262.620973	141.290299	29.699181	0.72102471	1.229155
04/03/2119	63.201299	1.14593223	0.37086994	262.757350	141.148443	29.709210	0.72094041	1.226702
04/10/2148	299.641052	1.14598305	0.37091108	262.838181	141.026757	29.710121	0.72092524	1.226783
04/18/2177	172.515246	1.14648921	0.37088821	262.954719	140.899840	29.715535	0.72126988	1.227596

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