2018 SC - Asteroid approaching Earth and Venus. It belongs to the Apollo group.
| 2018 SC | |
|---|---|
| Asteroid | |
| Opening | |
| Discovery date | 09/17/2018 |
| Category | NEA ( Apollo ) |
| Orbital characteristics | |
| Age of March 23, 2018 JD 2458200.5 | |
| Eccentricity ( e ) | 0.4520581098682081 |
| Semimajor axis ( a ) | 188.29 million km (1,258642257607615 AU ) |
| Perihelion ( q ) | 103.172 million km (0.68966281763326 A.E.) |
| Aphelion ( Q ) | 273.408 million km (1.827621697582 a.u.) |
| Circulation Period ( P ) | 515.765 days (1.412 g ) |
| Average orbital speed | 25.131 km / s |
| Inclination ( i ) | 9.76985024430523 ° |
| Longitude node (Ω) | 174.8443603898718 ° |
| Perihelion Argument (ω) | 271.0773125489544 ° |
| Median Anomaly ( M ) | 194.2369008727326 ° |
| physical characteristics | |
| Diameter | 0.007 - 0.016 km |
| Apparent magnitude | 31.89 m (current) |
| Absolute magnitude | 27,915 m |
| Current distance from the sun | 1,733 a. e. |
| Current distance from earth | 1.961 a. e. |
The approach to the Earth took place on September 18, 2018 at 14:46 UTC, the distance was 268 thousand km (0.7 distances to the Moon), the relative speed was 14.028 km / s ( 50 504 km / h ).
The asteroid was discovered on September 17, 2018, that is, just one day before the approach.
Content
- 1 Rapprochement
- 2 notes
- 3 References
- 4 See also
Convergence
| date of | but. e. | distances to the moon | heavenly body |
|---|---|---|---|
| 03/15/2016 8:42 | 0,002725 | 1.06 | Moon |
| 03/15/2016 9:30 a.m. | 0,000514 | 0,200 | Earth |
| 09/18/2018 12:57 | 0.003159 | 1.23 | Moon |
| 09/18/2018 14:46 | 0,001795 | 0.699 | Earth |
| 09/20/2087 22:14 | 0,027337 | 10.6 | Earth |
The distance data during the 2016 approach (during which the asteroid was not detected) is inaccurate, the possible approach distance lies in the range from 72 thousand km to 2.7 million km.
Notes
Links
See also
- List of asteroids crossing the Earth’s orbit