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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 | 9425
| | 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 | 0.000254 | 38 049
| | 04/14/2029 02:32:38 PM | Moon | 0.000642 | 95 988
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Details...
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Orbit initial data
| Date of initial data | 07/09/2024
| | M – mean anomaly (degrees) | 116.497140
| | a – orbit major semiaxis (astronomical units) | 0.92239255
| | e – orbit eccentricity | 0.19114100
| | ω – orbit ascending node-perihelion angle (degrees) | 126.677577
| | Ω – longitude of orbit ascending node (degrees) | 203.904801
| | i – orbit inclination to the ecliptic plane (degrees) | 3.340985
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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 | 221.776540 | 0.92035596 | 0.19316732 | 121.870191 | 210.290438 | 3.201372 | 0.74257327 | 0.882946
| | 01/21/1858 | 160.066063 | 0.92160219 | 0.19277437 | 122.166933 | 209.632690 | 3.213095 | 0.74394091 | 0.884740
| | 01/29/1887 | 10.920407 | 0.92596788 | 0.19038713 | 121.594553 | 208.438904 | 3.299013 | 0.74967551 | 0.891034
| | 02/07/1916 | 205.490056 | 0.92773945 | 0.18973353 | 122.105037 | 207.346820 | 3.304070 | 0.75171617 | 0.893593
| | 02/14/1945 | 18.531548 | 0.92728693 | 0.18957328 | 123.084725 | 206.319936 | 3.307637 | 0.75149810 | 0.892939
| | 02/22/1974 | 217.492293 | 0.92578461 | 0.19016813 | 124.076823 | 205.359811 | 3.323083 | 0.74972989 | 0.890770
| | 03/02/2003 | 78.030553 | 0.92198018 | 0.19119264 | 126.152730 | 204.585318 | 3.333246 | 0.74570435 | 0.885285
| | 03/09/2032 | 130.280323 | 1.10299814 | 0.18905019 | 71.424124 | 203.546655 | 2.221248 | 0.89447613 | 1.158411
| | 03/17/2061 | 147.215804 | 1.10371080 | 0.18930903 | 71.324259 | 203.091833 | 2.226244 | 0.89476838 | 1.159534
| | 03/25/2090 | 146.474312 | 1.10437237 | 0.18942766 | 71.833574 | 202.586001 | 2.234386 | 0.89517370 | 1.160577
| | 04/03/2119 | 139.772629 | 1.10570338 | 0.18959920 | 73.132637 | 201.214410 | 2.292874 | 0.89606291 | 1.162676
| | 04/10/2148 | 228.679846 | 1.09635947 | 0.18719496 | 75.818169 | 200.639835 | 2.271791 | 0.89112651 | 1.147969
| | 04/18/2177 | 325.611808 | 1.09701464 | 0.18742118 | 75.704754 | 200.283392 | 2.272233 | 0.89141086 | 1.148998
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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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