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Asteroid General Data

2004 MN4 (99942 Apophis)

General information

Preliminary designation2004 MN4
NameApophis
Number99942
GroupAten
Absolute magnitude19.20
Approximate diameter (m)380
Approximate mass (kg)1.04·1011
Number of observations4142
Arc length (days)3946

Approaches

Date
Object
r, AU
r, km
04/13/1866 09:36:00 AMEarth0.004401658 386
04/14/1866 04:48:00 AMMoon0.004628692 365
04/13/2029 09:36:00 PMEarth0.00025538 155
04/14/2029 02:24:00 PMMoon0.00063995 592
Details...

Orbit initial data

Date of initial data06/27/2015
M – mean anomaly (degrees)45.932746
a – orbit major semiaxis (astronomical units)0.922117
e – orbit eccentricity0.191215
ω – orbit ascending node-perihelion angle (degrees)126.456907
Ω – longitude of orbit ascending node (degrees)204.203501
i – orbit inclination to the ecliptic plane (degrees)3.330617
Details...

Orbital evolution

Date
M
a
e
ω
Ω
i
q
P
01/05/1800201.5058230.918104570.19452390212.640485119.7515862.8845030.73951129321.271652
01/13/1829190.0411960.918789050.19485112211.316178120.6938622.9076010.73976197321.630996
01/21/1858146.5205510.921334340.19364393209.962613121.7202842.9133520.74292354322.968426
01/29/188711.7148430.926126550.19027858208.453172121.6111953.3008860.74990450325.491521
02/07/1916205.3931460.927732840.18972287207.348726122.1005893.3040970.75172071326.338698
02/14/194518.5210950.927281630.18957516206.319875123.0852253.3076410.75149206326.100650
02/22/1974217.4967220.925784740.19016762205.360068124.0757703.3230850.74973045325.311341
03/02/200378.0310260.921980160.19119257204.585353126.1524403.3332460.74570440323.308068
03/09/2032130.9234491.102355020.18885418203.54706971.5764072.2277090.89417067422.684582
03/17/2061162.8156241.102147940.18861257202.27861773.4639872.2857900.89426899422.565485
03/25/2090190.5194411.104850310.18937523201.59773872.7492872.2876840.89561903424.120577
04/03/2119190.7975821.104200610.18925651201.00270172.9658782.3046210.89522346423.746531
04/10/2148202.6762021.104190840.18926451200.57882173.0812282.3075440.89520670423.740904
04/18/2177206.6598181.104512950.18938134200.16994773.2518672.3121590.89533881423.926334
04/27/2206213.0268591.103789790.18921470199.63340373.4863942.3247040.89493654423.510066
Detailed table... Graphs... 3D animation... Calculation on the date...

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This project was supported by the Federal Agency of Education (project codes RNP 2.1.1.1689, RNP 2.1.1.745).
Samara State Technical University
Applied Mathematics and Information Science Department
Яндекс.Метрика