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Asteroid General Data
General information
Preliminary designation | 2004 MN4
| Name | Apophis
| Number | 99942
| Group | Aten
| Absolute magnitude | 19.01
| Approximate diameter (m) | 420
| Approximate mass (kg) | 1.35·1011
| Number of observations | 9415
| Arc length (days) | 6276
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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 | 38 087
| 04/14/2029 02:32:38 PM | Moon | 0.000641 | 95 895
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Details...
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Orbit initial data
Date of initial data | 12/22/2023
| M – mean anomaly (degrees) | 254.055514
| a – orbit major semiaxis (astronomical units) | 0.92275345
| e – orbit eccentricity | 0.19140267
| ω – orbit ascending node-perihelion angle (degrees) | 126.601066
| Ω – longitude of orbit ascending node (degrees) | 203.956625
| i – orbit inclination to the ecliptic plane (degrees) | 3.339290
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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 | 256.441210 | 0.92327684 | 0.19159282 | 120.760443 | 210.768483 | 3.257564 | 0.74638363 | 0.887153
| 01/21/1858 | 158.849629 | 0.92338640 | 0.19159874 | 121.597153 | 209.582835 | 3.256220 | 0.74646673 | 0.887311
| 01/29/1887 | 11.184592 | 0.92602168 | 0.19035178 | 121.598283 | 208.446369 | 3.299782 | 0.74975180 | 0.891112
| 02/07/1916 | 205.457967 | 0.92773726 | 0.18973008 | 122.103979 | 207.347444 | 3.304079 | 0.75171760 | 0.893590
| 02/14/1945 | 18.527802 | 0.92728521 | 0.18957393 | 123.085191 | 206.319905 | 3.307639 | 0.75149611 | 0.892937
| 02/22/1974 | 217.493533 | 0.92578466 | 0.19016799 | 124.076671 | 205.359885 | 3.323084 | 0.74973006 | 0.890770
| 03/02/2003 | 78.030616 | 0.92198017 | 0.19119264 | 126.152723 | 204.585319 | 3.333245 | 0.74570435 | 0.885285
| 03/09/2032 | 130.444112 | 1.10283433 | 0.18899983 | 71.462759 | 203.546764 | 2.223013 | 0.89439883 | 1.158153
| 03/17/2061 | 143.757282 | 1.10471822 | 0.18959230 | 71.087340 | 203.115051 | 2.223966 | 0.89527216 | 1.161122
| 03/25/2090 | 147.159704 | 1.10292237 | 0.18900830 | 71.952663 | 202.066315 | 2.263508 | 0.89446089 | 1.158292
| 04/03/2119 | 110.322077 | 1.11769681 | 0.19349327 | 69.059756 | 201.538969 | 2.210714 | 0.90143000 | 1.181644
| 04/10/2148 | 329.442263 | 1.11595612 | 0.19288171 | 70.378175 | 200.208548 | 2.260162 | 0.90070859 | 1.178885
| 04/18/2177 | 159.912587 | 1.11952168 | 0.19408271 | 69.729612 | 199.822176 | 2.247908 | 0.90224188 | 1.184539
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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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