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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 | 87 964
| | 09/21/2081 08:16:48 PM | Moon | 0.000461 | 68 977
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Details...
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Orbit initial data
| Date of initial data | 05/05/2025
| | M – mean anomaly (degrees) | 2.489685
| | a – orbit major semiaxis (astronomical units) | 0.93018488
| | e – orbit eccentricity | 0.11128523
| | ω – orbit ascending node-perihelion angle (degrees) | 138.177449
| | Ω – longitude of orbit ascending node (degrees) | 1.776424
| | i – orbit inclination to the ecliptic plane (degrees) | 3.675274
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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 | 0.885181 | 0.91661557 | 0.14050298 | 307.047575 | 197.441634 | 0.166504 | 0.78782835 | 0.877569
| | 01/21/1858 | 2.307577 | 0.91876780 | 0.14012138 | 308.512664 | 193.059668 | 0.180656 | 0.79002878 | 0.880662
| | 01/29/1887 | 3.158403 | 0.91770555 | 0.14049101 | 319.958799 | 180.523674 | 0.207483 | 0.78877617 | 0.879135
| | 02/07/1916 | 28.533189 | 0.91306819 | 0.14185789 | 321.769658 | 179.694619 | 0.219094 | 0.78354226 | 0.872480
| | 02/14/1945 | 123.155248 | 0.91452651 | 0.14040862 | 324.416337 | 177.585220 | 0.233905 | 0.78611911 | 0.874571
| | 02/22/1974 | 147.450166 | 0.91132987 | 0.14137428 | 330.608854 | 173.918241 | 0.234886 | 0.78249126 | 0.869990
| | 03/02/2003 | 267.609846 | 0.91082261 | 0.14167957 | 330.806928 | 172.285081 | 0.242265 | 0.78177765 | 0.869263
| | 03/09/2032 | 229.677434 | 0.93002997 | 0.11174095 | 138.224903 | 1.710993 | 3.674564 | 0.82610754 | 0.896904
| | 03/17/2061 | 332.723220 | 0.93367393 | 0.10855781 | 138.379282 | 359.558733 | 3.731982 | 0.83231634 | 0.902181
| | 03/25/2090 | 202.058370 | 0.89960758 | 0.14457257 | 150.162166 | 356.301743 | 1.927456 | 0.76954901 | 0.853258
| | 04/03/2119 | 195.990024 | 0.90227392 | 0.14316800 | 153.631530 | 352.809136 | 1.994521 | 0.77309717 | 0.857054
| | 04/10/2148 | 105.166463 | 0.90486089 | 0.14017825 | 156.986080 | 348.863919 | 2.097952 | 0.77801907 | 0.860743
| | 04/18/2177 | 358.202782 | 0.90636436 | 0.14216218 | 157.982536 | 344.993634 | 1.630032 | 0.77751363 | 0.862889
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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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