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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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| 09/10/1833 02:44:10 AM | Moon | 0.000808 | 120 919
| | 09/08/2021 01:48:00 PM | Earth | 0.000803 | 120 109
| | 09/09/2021 05:25:26 AM | Moon | 0.000795 | 118 884
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Details...
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Orbit initial data
| Date of initial data | 03/31/2024
| | M – mean anomaly (degrees) | 23.750077
| | a – orbit major semiaxis (astronomical units) | 1.10276013
| | e – orbit eccentricity | 0.17647848
| | ω – orbit ascending node-perihelion angle (degrees) | 73.052280
| | Ω – longitude of orbit ascending node (degrees) | 342.296640
| | i – orbit inclination to the ecliptic plane (degrees) | 0.032041
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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 | 160.408886 | 1.04401598 | 0.16569933 | 85.808235 | 350.444784 | 0.123981 | 0.87102323 | 1.066747
| | 01/21/1858 | 229.384977 | 1.01465209 | 0.16422283 | 96.763250 | 349.303986 | 0.123162 | 0.84802306 | 1.022060
| | 01/29/1887 | 7.421576 | 1.01547873 | 0.16470904 | 96.481805 | 348.122285 | 0.118207 | 0.84822021 | 1.023309
| | 02/07/1916 | 139.471569 | 1.01508840 | 0.16416361 | 96.737170 | 348.232207 | 0.112733 | 0.84844782 | 1.022719
| | 02/14/1945 | 273.198550 | 1.01608612 | 0.16414070 | 98.140228 | 347.137627 | 0.108684 | 0.84930504 | 1.024227
| | 02/22/1974 | 40.360502 | 1.01228947 | 0.16435343 | 97.786244 | 345.689570 | 0.102665 | 0.84591622 | 1.018492
| | 03/02/2003 | 215.794678 | 1.01232325 | 0.16415353 | 98.390537 | 345.276187 | 0.098496 | 0.84614681 | 1.018543
| | 03/09/2032 | 331.948021 | 1.10271673 | 0.17643702 | 73.833606 | 341.572114 | 0.031174 | 0.90815667 | 1.157968
| | 03/17/2061 | 346.941758 | 1.10111275 | 0.17617346 | 78.783978 | 337.711492 | 0.028229 | 0.90712590 | 1.155442
| | 03/25/2090 | 38.218551 | 1.09827054 | 0.17494886 | 83.529926 | 331.470127 | 0.026606 | 0.90612936 | 1.150972
| | 04/03/2119 | 197.468881 | 1.07240046 | 0.16904866 | 120.111573 | 301.736989 | 0.010147 | 0.89111260 | 1.110545
| | 04/10/2148 | 246.081791 | 1.07475890 | 0.16998824 | 142.808962 | 280.766736 | 0.009173 | 0.89206253 | 1.114210
| | 04/18/2177 | 200.184147 | 1.08380931 | 0.17161831 | 180.596080 | 239.786534 | 0.009973 | 0.89780779 | 1.128314
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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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