Asteroid General Data

1999 MM (101869)

General information

Preliminary designation	1999 MM
Number	101869
Group	Apollo
Absolute magnitude	19.48
Approximate diameter (m)	340
Approximate mass (kg)	7.05·10¹⁰
Number of observations	201
Arc length (days)	7238

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	26.015547
a – orbit major semiaxis (astronomical units)	1.62432700
e – orbit eccentricity	0.61069200
ω – orbit ascending node-perihelion angle (degrees)	268.834014
Ω – longitude of orbit ascending node (degrees)	110.919601
i – orbit inclination to the ecliptic plane (degrees)	4.765468

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	134.878766	1.61709147	0.61032828	265.658893	113.748745	4.662983	0.63013481	2.056376
01/21/1858	165.305822	1.62077262	0.61053223	266.013554	113.333159	4.675032	0.63123870	2.063402
01/29/1887	188.825237	1.62260783	0.61059090	266.436245	112.869903	4.758396	0.63185826	2.066907
02/07/1916	206.975370	1.62175774	0.61049952	266.925738	112.471218	4.760939	0.63167541	2.065283
02/14/1945	225.976126	1.62201413	0.61079028	267.410654	112.061803	4.759673	0.63130366	2.065773
02/22/1974	240.799894	1.62232389	0.61053669	267.969431	111.626707	4.762260	0.63183564	2.066365
03/02/2003	250.810036	1.62353117	0.61055272	268.439537	111.255601	4.764640	0.63227979	2.068672
03/09/2032	258.131931	1.62441337	0.61074668	268.978333	110.784694	4.765495	0.63230830	2.070358
03/17/2061	263.355787	1.62479256	0.61078547	269.410979	110.414271	4.766372	0.63239287	2.071083
03/25/2090	269.705585	1.62625793	0.61086757	269.981866	109.877561	4.771835	0.63282970	2.073885
04/03/2119	312.833963	1.61674149	0.60919416	270.518407	109.598553	4.804945	0.63183201	2.055708
04/10/2148	350.730404	1.61740035	0.60966100	271.015089	109.182533	4.806115	0.63133443	2.056965
04/18/2177	40.368110	1.61144582	0.60835051	271.551166	108.822736	4.810599	0.63112193	2.045616

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