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Asteroid General Data
General information
| Preliminary designation | 2018 SD2
| | Group | Aten
| | Absolute magnitude | 28.39
| | Approximate diameter (m) | 6
| | Approximate mass (kg) | 3.18·105
| | Number of observations | 18
| | Arc length (days) | 17
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Approaches
Date | Object | r, AU | r, km
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| 09/25/2018 06:00:00 AM | Earth | 0.000588 | 87 937
| | 09/21/2081 08:24:00 PM | Moon | 0.000460 | 68 883
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Details...
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Orbit initial data
| Date of initial data | 06/09/2026
| | M – mean anomaly (degrees) | 81.932194
| | a – orbit major semiaxis (astronomical units) | 0.93021903
| | e – orbit eccentricity | 0.11131163
| | ω – orbit ascending node-perihelion angle (degrees) | 138.188607
| | Ω – longitude of orbit ascending node (degrees) | 1.773021
| | i – orbit inclination to the ecliptic plane (degrees) | 3.675233
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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 | 65.478819 | 0.92695786 | 0.13029363 | 210.684965 | 293.716193 | 1.168455 | 0.80618116 | 0.892464
| | 01/21/1858 | 262.788607 | 0.92624202 | 0.13075080 | 215.391523 | 288.021606 | 1.132923 | 0.80513514 | 0.891430
| | 01/29/1887 | 55.009822 | 0.92781306 | 0.12924105 | 219.903145 | 285.530147 | 1.134041 | 0.80790153 | 0.893699
| | 02/07/1916 | 255.878580 | 0.91890098 | 0.13643509 | 308.219723 | 194.600626 | 0.163113 | 0.79353064 | 0.880853
| | 02/14/1945 | 28.772469 | 0.90971004 | 0.14166638 | 315.464027 | 189.144543 | 0.198885 | 0.78083471 | 0.867671
| | 02/22/1974 | 155.001279 | 0.91127688 | 0.14107076 | 328.626787 | 175.075711 | 0.231019 | 0.78272236 | 0.869914
| | 03/02/2003 | 267.931126 | 0.91082496 | 0.14168344 | 330.724511 | 172.342208 | 0.243161 | 0.78177614 | 0.869267
| | 03/09/2032 | 229.677380 | 0.93002998 | 0.11174097 | 138.224911 | 1.710993 | 3.674565 | 0.82610753 | 0.896904
| | 03/17/2061 | 332.723621 | 0.93367379 | 0.10855794 | 138.379397 | 359.558746 | 3.731980 | 0.83231609 | 0.902180
| | 03/25/2090 | 202.488978 | 0.89971710 | 0.14447315 | 150.148109 | 356.336482 | 1.940154 | 0.76973214 | 0.853414
| | 04/03/2119 | 193.564177 | 0.90292104 | 0.14295326 | 153.444637 | 353.327559 | 1.987403 | 0.77384553 | 0.857976
| | 04/10/2148 | 102.681901 | 0.90410357 | 0.14052973 | 154.844460 | 352.077423 | 1.997807 | 0.77705014 | 0.859662
| | 04/18/2177 | 70.450568 | 0.90010070 | 0.14423326 | 156.612875 | 351.352949 | 1.964331 | 0.77027624 | 0.853959
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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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