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Asteroid General Data
General information
| Preliminary designation | 2021 BK1
| | Group | Apollo
| | Absolute magnitude | 26.35
| | Approximate diameter (m) | 14
| | Approximate mass (kg) | 5.32·106
| | Number of observations | 37
| | Arc length (days) | 3
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Approaches
Date | Object | r, AU | r, km
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| 01/20/2021 02:49:55 PM | Moon | 0.000879 | 131 423
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Details...
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Orbit initial data
| Date of initial data | 06/09/2026
| | M – mean anomaly (degrees) | 179.142453
| | a – orbit major semiaxis (astronomical units) | 1.10867613
| | e – orbit eccentricity | 0.72074787
| | ω – orbit ascending node-perihelion angle (degrees) | 309.533383
| | Ω – longitude of orbit ascending node (degrees) | 300.262069
| | i – orbit inclination to the ecliptic plane (degrees) | 25.568732
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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 | 163.858534 | 1.10478888 | 0.72373975 | 308.283280 | 301.897657 | 25.131711 | 0.30520925 | 1.161233
| | 01/21/1858 | 161.318069 | 1.10477457 | 0.72343547 | 308.506669 | 301.656783 | 25.182697 | 0.30554146 | 1.161211
| | 01/29/1887 | 153.970046 | 1.10516137 | 0.72279817 | 308.688536 | 301.410713 | 25.277639 | 0.30635275 | 1.161821
| | 02/07/1916 | 146.723132 | 1.10496036 | 0.72243346 | 308.902686 | 301.187765 | 25.332326 | 0.30670002 | 1.161504
| | 02/14/1945 | 143.296124 | 1.10363833 | 0.72198437 | 309.199435 | 300.930350 | 25.435415 | 0.30682870 | 1.159420
| | 02/22/1974 | 154.368198 | 1.10347325 | 0.72169778 | 309.416869 | 300.707808 | 25.490369 | 0.30709905 | 1.159160
| | 03/02/2003 | 165.391260 | 1.10363953 | 0.72133028 | 309.646319 | 300.451452 | 25.551761 | 0.30755092 | 1.159422
| | 03/09/2032 | 151.141519 | 1.10923621 | 0.72072149 | 309.535015 | 300.228107 | 25.571883 | 0.30978583 | 1.168252
| | 03/17/2061 | 90.827026 | 1.10954047 | 0.72042617 | 309.749058 | 299.975581 | 25.628467 | 0.31019848 | 1.168733
| | 03/25/2090 | 28.895544 | 1.10955940 | 0.72007457 | 309.945845 | 299.758061 | 25.679856 | 0.31059389 | 1.168763
| | 04/03/2119 | 329.139171 | 1.10878716 | 0.71985250 | 310.204005 | 299.522293 | 25.740001 | 0.31062396 | 1.167543
| | 04/10/2148 | 272.311712 | 1.10955857 | 0.71978538 | 310.424890 | 299.288947 | 25.713414 | 0.31091453 | 1.168762
| | 04/18/2177 | 210.912481 | 1.10957834 | 0.71940747 | 310.611587 | 299.075079 | 25.764828 | 0.31133939 | 1.168793
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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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