2017 TD6
| Discovery[1][2] | |
|---|---|
| Discovered by | Pan-STARRS |
| Discovery site | Haleakala Obs. |
| Discovery date | 11 October 2017 (first observed only) |
| Designations | |
| 2017 TD6 | |
| NEO·Apollo[1] | |
| Orbital characteristics[1] | |
| Epoch4 September 2017 (JD2458000.5) | |
| Uncertainty parameter6 | |
| Observation arc | (8 days) |
| Aphelion | 1.5284AU |
| Perihelion | 0.7798 AU |
| 1.1541 AU | |
| Eccentricity | 0.3243 |
| 1.24yr(453 days) | |
| 275.44° | |
| 0° 47m42s/ day | |
| Inclination | 1.7198° |
| 26.985° | |
| 82.738° | |
| EarthMOID | 0.00034 AU·0.13LD |
| Physical characteristics | |
| Dimensions | 9.9–22m[3] 11 m(generic at0.20)[4] |
| 27.162[1]·27.175 | |
2017 TD6is a micro-asteroid,classified as anear-Earth objectof theApollo group,approximately 10–20 meters in diameter. It was first observed byPan-STARRSatHaleakala Observatory,Hawaii, on 11 October 2017.[2]
On 19 October 2017, the asteroid transited Earth at a nominal distance of 191,000km;119,000mi(0.001278AU), which corresponds to 0.5lunar distances(LD). On the following day it also passed near theMoonat 113,000 km (0.00075575 AU).[1]Peaking near amagnitudeof 18, the object was too faint to be seen—except for the largest telescopes.[3]
As of 2018,2017 TD6has a poorly determined orbit with anuncertaintyof 6 and a shortobservation arcof 8 days only. Due to its small size, the asteroid is likely to remain unobserved until its next, still relatively distant approach, predicted to occur in March 2044, at a distance of 2,030,000 km (0.01358 AU) or 5.3 LD from Earth.[1]
See also
[edit]- 2012 TC4– A similar small asteroid that passed close to the earth on 12 October 2017
References
[edit]- ^abcdef"JPL Small-Body Database Browser: (2017 TD6)"(2017-10-19 last obs.).Jet Propulsion Laboratory.Retrieved25 January2018.
- ^ab"2017 TD6".Minor Planet Center.Retrieved25 January2018.
- ^abSteve Spaleta (19 October 2017)."Newfound Bus-Size Asteroid Will Zoom Safely By Earth Today".Space.com.Retrieved25 January2018.
- ^"Asteroid Size Estimator".CNEOS NASA/JPL.Retrieved25 January2018.
External links
[edit]- MPEC 2017-U33: 2017 TD6,Minor Planet Electronic Circular(MPEC)
- Near-Earth asteroid 2017 TD6 very close encounter: an image (18 Oct. 2017)
- Asteroid 2017 TD6 to flyby Earth at 0.5 LD on October 19, 2017,The Watchers,18 October 2017
- 2017 TD6atNeoDyS-2, Near Earth Objects—Dynamic Site
- 2017 TD6atESA–space situational awareness
- 2017 TD6at theJPL Small-Body Database
2017 in space | ||
|---|---|---|
Space probe launches |
|    |
| Impact events | ||
| SelectedNEOs | ||
| Exoplanets | ||
| Discoveries | ||
| Comets | ||
| Space exploration |
| |
