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Asteroid General Data
General information
| Preliminary designation | 2021 SP
| | Group | Apollo
| | Absolute magnitude | 29.22
| | Approximate diameter (m) | 4
| | Approximate mass (kg) | 1.01·105
| | Number of observations | 9
| | Arc length (days) | 2
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Approaches
Date | Object | r, AU | r, km
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| 09/17/2021 11:45:36 AM | Earth | 0.000093 | 13 939
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Details...
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Orbit initial data
| Date of initial data | 02/25/2023
| | M – mean anomaly (degrees) | 266.787264
| | a – orbit major semiaxis (astronomical units) | 1.45502602
| | e – orbit eccentricity | 0.46212659
| | ω – orbit ascending node-perihelion angle (degrees) | 252.426812
| | Ω – longitude of orbit ascending node (degrees) | 174.545592
| | i – orbit inclination to the ecliptic plane (degrees) | 4.818361
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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 | 79.175108 | 1.14101782 | 0.41895686 | 94.640922 | 356.744938 | 0.286364 | 0.66298058 | 1.218819
| | 01/21/1858 | 11.781747 | 1.14100633 | 0.41902896 | 94.684957 | 356.792440 | 0.284495 | 0.66289163 | 1.218801
| | 01/29/1887 | 301.980113 | 1.14218572 | 0.41949004 | 93.366940 | 358.218130 | 0.272603 | 0.66305018 | 1.220691
| | 02/07/1916 | 235.732847 | 1.14043632 | 0.41891382 | 94.800680 | 356.773305 | 0.246675 | 0.66269178 | 1.217888
| | 02/14/1945 | 171.184589 | 1.14219961 | 0.41885856 | 94.016447 | 357.412865 | 0.246508 | 0.66377952 | 1.220713
| | 02/22/1974 | 57.947424 | 1.15009636 | 0.41955624 | 99.505836 | 352.960126 | 0.161362 | 0.66756626 | 1.233394
| | 03/02/2003 | 272.605987 | 1.14703837 | 0.41878145 | 99.969358 | 352.728413 | 0.155734 | 0.66667998 | 1.228478
| | 03/09/2032 | 319.350748 | 1.45549680 | 0.46217327 | 252.548782 | 174.449663 | 4.816717 | 0.78280509 | 1.755972
| | 03/17/2061 | 150.932783 | 1.45483293 | 0.46203385 | 252.844805 | 174.123073 | 4.824665 | 0.78265087 | 1.754770
| | 03/25/2090 | 337.679531 | 1.45610092 | 0.46270872 | 253.306397 | 173.818771 | 4.827426 | 0.78235033 | 1.757065
| | 04/03/2119 | 111.437118 | 1.46534784 | 0.46445131 | 253.172163 | 173.458096 | 4.786204 | 0.78476512 | 1.773829
| | 04/10/2148 | 239.430367 | 1.46556746 | 0.46461781 | 253.599757 | 173.140593 | 4.782056 | 0.78463871 | 1.774228
| | 04/18/2177 | 7.090202 | 1.46499420 | 0.46426735 | 254.077521 | 172.727543 | 4.793466 | 0.78484523 | 1.773187
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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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