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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 observations4442
Arc length (days)3946

Approaches

Date
Object
r, AU
r, km
04/13/1866 07:12:00 AMEarth0.006488970 647
04/14/1866 04:48:00 AMMoon0.0072551 085 364
04/13/2029 09:36:00 PMEarth0.00025538 121
04/14/2029 02:24:00 PMMoon0.00064095 672
04/15/2111 04:48:00 PMMoon0.002602389 203
04/15/2111 07:12:00 PMEarth0.001220182 491
Details...

Orbit initial data

Date of initial data05/27/2017
M – mean anomaly (degrees)104.636718
a – orbit major semiaxis (astronomical units)0.922602
e – orbit eccentricity0.191526
ω – orbit ascending node-perihelion angle (degrees)126.686800
Ω – longitude of orbit ascending node (degrees)204.060619
i – orbit inclination to the ecliptic plane (degrees)3.336789
Details...

Orbital evolution

Date
M
a
e
ω
Ω
i
q
P
01/05/1800284.6131980.921720820.19377565212.214743119.9434573.0869600.74311377323.171666
01/13/1829202.7075820.921272080.19372467211.087757121.2073593.1043280.74279895322.935692
01/21/1858139.3305420.920313710.19358210209.626677122.4877793.1054050.74215745322.431913
01/29/188711.6419120.926112360.19028876208.452859121.6087133.3007660.74988359325.484042
02/07/1916205.4024570.927733470.18972388207.348546122.1008903.3040940.75172028326.339028
02/14/194518.5221810.927282130.18957498206.319878123.0850913.3076400.75149263326.100912
02/22/1974217.4963710.925784720.19016767205.360040124.0758143.3230850.74973040325.311334
03/02/200378.0310180.921980160.19119258204.585347126.1524433.3332460.74570440323.308068
03/09/2032130.7813391.102497020.18889773203.54696971.5428432.2261740.89423784422.766259
03/17/2061171.5789381.098226330.18774095203.07184272.5815432.2366250.89204428420.312163
03/25/2090239.9116341.102533430.18883957202.12121273.2205962.2657100.89433149422.787199
04/03/2119210.3403251.120303490.19686143199.27797472.1979361.0298070.89975894433.049670
04/10/214819.0475221.121338020.19711772198.78862172.5301801.0333360.90030243433.649654
04/18/2177163.5177701.122878800.19768102198.22618973.3879291.0414590.90090698434.543748
04/27/2206352.1486451.116775260.19573374196.00426376.1273281.0846730.89818466431.005542
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