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Asteroid General Data
General information
| Preliminary designation | 2021 RP2
| | Group | Apollo
| | Absolute magnitude | 30.26
| | Approximate diameter (m) | 2
| | Approximate mass (kg) | 2.40·104
| | Number of observations | 61
| | Arc length (days) | 4
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Approaches
Date | Object | r, AU | r, km
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| 09/08/2021 01:48:00 PM | Earth | 0.000803 | 120 191
| | 09/09/2021 05:25:26 AM | Moon | 0.000794 | 118 812
| | 09/07/2110 09:54:43 PM | Moon | 0.000543 | 81 291
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Details...
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Orbit initial data
| Date of initial data | 06/09/2026
| | M – mean anomaly (degrees) | 344.627878
| | a – orbit major semiaxis (astronomical units) | 1.10273312
| | e – orbit eccentricity | 0.17639366
| | ω – orbit ascending node-perihelion angle (degrees) | 73.180361
| | Ω – longitude of orbit ascending node (degrees) | 342.182067
| | i – orbit inclination to the ecliptic plane (degrees) | 0.031979
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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 | 258.242976 | 1.01590606 | 0.16445939 | 96.564616 | 350.298626 | 0.128735 | 0.84883077 | 1.023955
| | 01/21/1858 | 21.413271 | 1.01613287 | 0.16456452 | 96.292302 | 349.650488 | 0.125617 | 0.84891344 | 1.024298
| | 01/29/1887 | 186.200238 | 1.01303181 | 0.16426877 | 95.773572 | 349.035031 | 0.118450 | 0.84662232 | 1.019613
| | 02/07/1916 | 16.693240 | 1.01119635 | 0.16436234 | 98.005874 | 347.406544 | 0.112321 | 0.84499375 | 1.016843
| | 02/14/1945 | 209.877274 | 1.01113001 | 0.16444412 | 98.525423 | 347.026145 | 0.108037 | 0.84485563 | 1.016743
| | 02/22/1974 | 41.532526 | 1.01229232 | 0.16438004 | 97.774692 | 345.671872 | 0.102576 | 0.84589167 | 1.018496
| | 03/02/2003 | 216.270484 | 1.01237109 | 0.16415624 | 98.374289 | 345.274634 | 0.098428 | 0.84618406 | 1.018615
| | 03/09/2032 | 331.947983 | 1.10271673 | 0.17643702 | 73.833612 | 341.572128 | 0.031175 | 0.90815667 | 1.157968
| | 03/17/2061 | 346.940224 | 1.10111309 | 0.17617355 | 78.783745 | 337.711626 | 0.028230 | 0.90712609 | 1.155443
| | 03/25/2090 | 38.227956 | 1.09826833 | 0.17494805 | 83.532012 | 331.467483 | 0.026609 | 0.90612842 | 1.150968
| | 04/03/2119 | 220.437751 | 1.06608598 | 0.16805354 | 240.097477 | 183.678340 | 0.019555 | 0.88692646 | 1.100751
| | 04/10/2148 | 331.517055 | 1.06824825 | 0.16837140 | 240.200762 | 182.707070 | 0.023152 | 0.88838580 | 1.104101
| | 04/18/2177 | 54.391575 | 1.07040045 | 0.16881915 | 239.800372 | 182.508060 | 0.027140 | 0.88969635 | 1.107440
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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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