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Asteroid General Data
General information
| Preliminary designation | 2004 MN4
| | Name | Apophis
| | Number | 99942
| | Group | Aten
| | Absolute magnitude | 19.00
| | Approximate diameter (m) | 420
| | Approximate mass (kg) | 1.37·1011
| | Number of observations | 9419
| | Arc length (days) | 6599
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Approaches
Date | Object | r, AU | r, km
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| 04/13/2029 09:50:24 PM | Earth | 0.000255 | 38 082
| | 04/14/2029 02:32:38 PM | Moon | 0.000641 | 95 900
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Details...
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Orbit initial data
| Date of initial data | 06/09/2026
| | M – mean anomaly (degrees) | 175.330380
| | a – orbit major semiaxis (astronomical units) | 0.92235922
| | e – orbit eccentricity | 0.19114923
| | ω – orbit ascending node-perihelion angle (degrees) | 126.679604
| | Ω – longitude of orbit ascending node (degrees) | 203.893629
| | i – orbit inclination to the ecliptic plane (degrees) | 3.340993
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Details...
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Orbital evolution
Date | M | a | e | ω | Ω | i | q | P
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| 01/13/1829 | 256.277175 | 0.92327972 | 0.19154153 | 120.726416 | 210.769807 | 3.258686 | 0.74643331 | 0.887157
| | 01/21/1858 | 158.365107 | 0.92338854 | 0.19154487 | 121.576700 | 209.585759 | 3.255836 | 0.74651820 | 0.887314
| | 01/29/1887 | 11.218422 | 0.92602853 | 0.19034717 | 121.598973 | 208.447125 | 3.299870 | 0.74976162 | 0.891122
| | 02/07/1916 | 205.453794 | 0.92773698 | 0.18972962 | 122.103870 | 207.347525 | 3.304080 | 0.75171779 | 0.893589
| | 02/14/1945 | 18.527288 | 0.92728499 | 0.18957400 | 123.085278 | 206.319901 | 3.307638 | 0.75149586 | 0.892936
| | 02/22/1974 | 217.493658 | 0.92578467 | 0.19016796 | 124.076679 | 205.359895 | 3.323083 | 0.74973009 | 0.890770
| | 03/02/2003 | 78.030589 | 0.92198017 | 0.19119263 | 126.152749 | 204.585319 | 3.333245 | 0.74570436 | 0.885285
| | 03/09/2032 | 130.427930 | 1.10285038 | 0.18900589 | 71.459296 | 203.546722 | 2.222477 | 0.89440516 | 1.158179
| | 03/17/2061 | 144.397718 | 1.10455479 | 0.18954735 | 71.128544 | 203.114639 | 2.223927 | 0.89518936 | 1.160864
| | 03/25/2090 | 147.589335 | 1.10335517 | 0.18919272 | 71.525338 | 202.489943 | 2.239704 | 0.89460840 | 1.158974
| | 04/03/2119 | 158.631806 | 1.10402568 | 0.18942618 | 71.509398 | 202.081870 | 2.242712 | 0.89489431 | 1.160030
| | 04/10/2148 | 161.685070 | 1.10406107 | 0.18946560 | 71.740657 | 201.664984 | 2.247669 | 0.89487947 | 1.160086
| | 04/18/2177 | 170.876746 | 1.10339890 | 0.18937412 | 71.934631 | 201.101095 | 2.261508 | 0.89444371 | 1.159043
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Detailed table...
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Graphs...
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3D animation...
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Calculation on the date...
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