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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 | 87 900
| 09/21/2081 08:31:12 PM | Moon | 0.000460 | 68 825
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Details...
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Orbit initial data
Date of initial data | 12/22/2023
| M – mean anomaly (degrees) | 173.173140
| a – orbit major semiaxis (astronomical units) | 0.93021641
| e – orbit eccentricity | 0.11133830
| ω – orbit ascending node-perihelion angle (degrees) | 138.200271
| Ω – longitude of orbit ascending node (degrees) | 1.783323
| i – orbit inclination to the ecliptic plane (degrees) | 3.675449
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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 | 223.424767 | 0.94178606 | 0.11757579 | 218.194354 | 300.128126 | 1.268136 | 0.83105482 | 0.913964
| 01/21/1858 | 166.060000 | 0.93899681 | 0.11950822 | 218.464692 | 298.420821 | 1.253789 | 0.82677897 | 0.909907
| 01/29/1887 | 158.280125 | 0.93739712 | 0.12022609 | 226.827762 | 290.663396 | 1.266588 | 0.82469753 | 0.907582
| 02/07/1916 | 57.956176 | 0.92215669 | 0.13301112 | 234.677663 | 273.764633 | 0.512085 | 0.79949959 | 0.885539
| 02/14/1945 | 37.388254 | 0.91097473 | 0.14178085 | 320.053062 | 183.365299 | 0.203828 | 0.78181596 | 0.869481
| 02/22/1974 | 151.195637 | 0.91048814 | 0.14176186 | 324.707480 | 178.630363 | 0.223944 | 0.78141565 | 0.868784
| 03/02/2003 | 268.409434 | 0.91082474 | 0.14169265 | 330.599786 | 172.425386 | 0.244337 | 0.78176757 | 0.869266
| 03/09/2032 | 229.677375 | 0.93002999 | 0.11174098 | 138.224889 | 1.710993 | 3.674564 | 0.82610753 | 0.896904
| 03/17/2061 | 332.724078 | 0.93367364 | 0.10855806 | 138.379490 | 359.558758 | 3.731977 | 0.83231584 | 0.902180
| 03/25/2090 | 203.017139 | 0.89977606 | 0.14441577 | 150.158156 | 356.367098 | 1.953249 | 0.76983421 | 0.853498
| 04/03/2119 | 192.378610 | 0.90316671 | 0.14294290 | 153.059920 | 353.874310 | 1.985695 | 0.77406544 | 0.858326
| 04/10/2148 | 106.500182 | 0.90399890 | 0.14087254 | 153.871580 | 353.141180 | 1.984682 | 0.77665028 | 0.859513
| 04/18/2177 | 54.422044 | 0.90058708 | 0.14433126 | 155.240746 | 352.606915 | 1.963819 | 0.77060421 | 0.854652
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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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