(88710) 2001 SL9
|
Orbit of 88710 2001 SL9 | |
| Discovery[1][2] | |
|---|---|
| Discovered by | NEAT |
| Discovery site | Palomar Observatory |
| Discovery date | 18 September 2001 |
| Designations | |
| None | |
| Orbital characteristics[1] | |
| Epoch 13 January 2016 (JD 2457400.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 22318 days (61.10 yr) |
| Aphelion | 1.3480 AU (201.66 Gm) |
| Perihelion | 0.77471 AU (115.895 Gm) |
| 1.0613 AU (158.77 Gm) | |
| Eccentricity | 0.27006 |
| 1.09 yr (399.37 d) | |
| 239.06° | |
| 0° 54m 5.112s / day | |
| Inclination | 21.900° |
| 202.86° | |
| 329.30° | |
| Known satellites | 1 |
| Earth MOID | 0.197987 AU (29.6184 Gm) |
| Jupiter MOID | 3.64009 AU (544.550 Gm) |
| Physical characteristics | |
| Dimensions | 1 km (0.62 mi)[3] |
| Mass | 109 mt |
Mean density | 1.8 g/cm3[2] |
Equatorial surface gravity | 0.02565 mm/s2[4] |
Equatorial escape velocity | 0.05116 mm/s[4] |
| 2.4004 h (0.10002 d) | |
Sidereal rotation period | 2.40035±0.00005 hours[1][5] |
| 0.16[2] | |
| Temperature | 230-303 K (-43-30°C)[4] |
| 17.6[1] | |
|
| |
(88710) 2001 SL9 is a binary Apollo asteroid[1] discovered by NEAT at Palomar Observatory.
Near-Earth Asteroid
Although 2001 SL9 is classified as a Near-Earth asteroid, it does not pose any threats. It has never, nor will it ever in the next century, come closer than 15,000,000 km (0.1 AU) from Earth or Venus.[1] However, the asteroid would make a good target for a spacecraft flyby, as a flyby to 2010 SL9 would only require a delta-v of 5.4 km/s.[6]
Moon
2001 SL9 has one moon, S/2001 (88710) 1. It was discovered from lightcurve observations[6] made by P. Pravec et al.[2] This moon is approximately 310 m (1,020 ft) in diameter. Its semi-major axis is 1.8 km (1.1 mi) and its orbital period is 16.4 hours.[2]
References
- 1 2 3 4 5 6 "88710 (2001 SL9)". JPL Small-Body Database. Jet Propulsion Laboratory. SPK-ID: 2088710. Retrieved 7 April 2016.
- 1 2 3 4 5 Johnston, Robert (September 1, 2005). "(88710) 2001 SL9". Johnston Archive. Retrieved 26 December 2013.
- ↑ "Asteroids Do Have Satellites". Asteroids III. 2002. Bibcode:2002aste.conf..289M.
- 1 2 3 "HEC: Exoplanets Calculator". Planetary Habitability Laboratory. University of Puerto Rico. Retrieved 27 December 2013.
- ↑ Green, Daniel (November 3, 2001). "IAUC 7742: 2001fd; 2001fe; 2001 SL_9". International Astronomical Union. Harvard University. Retrieved 27 December 2013.
- 1 2 Benner, Lance (December 14, 2004). "BINARY NEAR-EARTH ASTEROIDS DETECTED BY RADAR". Jet Propulsion Laboratory. Retrieved 30 December 2013.
External links
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