2018 SM - Asteroid approaching the Earth. It belongs to the Apollo group.
2018 SM | |
---|---|
Asteroid | |
Opening | |
Category | NEA ( Apollo ) |
Orbital characteristics | |
Age of March 23, 2018 JD 2458200.5 | |
Eccentricity ( e ) | 0.5304419681759639 |
Semi-axis ( a ) | 304.643 million km (2.036411405055905 a.u.) |
Perihelion ( q ) | 143.047 million km (0.95621333134207 a.u.) |
Afhelia ( Q ) | 466.238 million km (3.1166094787697 A.E.) |
Circulation Period ( P ) | 1,061,443 days (2,906 g ) |
Average orbital speed | 19.309 km / s |
Inclination ( i ) | 6.62353499870779 ° |
Ascending node longitude (Ω) | 172.9395332352925 ° |
Perihelion Argument (ω) | 149.0377985740289 ° |
Median Anomaly ( M ) | 308.2790506908273 ° |
physical characteristics | |
Diameter | 0.004 - 0.008 km |
Apparent magnitude | 34.94 m (current) |
Absolute magnitude | 29,392 m |
Current distance from the sun | 2,841 a. e. |
Current distance from Earth | 3,829 a. e. |
The approach to the Earth took place on September 15, 2018 at 22:29 UTC, the distance is 42 thousand km (0.11 distances to the Moon), the relative speed is 11.083 km / s (39 899 km / h).
The asteroid was discovered on September 16, 2018, that is, the day after the rapprochement.
Content
Convergence
date | but. e. | distances to the moon | heavenly body |
---|---|---|---|
09/15/2018 13:44 | 0,001876 | 0.731 | Moon |
09/15/2018 10:29 PM | 0,000285 | 0,111 | Land |
Notes
Links
See also
- List of asteroids crossing the Earth's orbit