(16960) 1998 QS52
| Discovery | |
|---|---|
| 14.3[1][3] · 14.79±0.23[7] | |
(16960) 1998 QS52 (
Lincoln Laboratory's Experimental Test Site near Socorro, New Mexico, in the United States.[2] This asteroid is one of the largest potentially hazardous asteroid known to exist.[8]
Orbit and classification
1998 QS52 is a member of the dynamical
semi-major axis of 2.20 AU). Its orbit has an exceptionally high eccentricity of 0.86 and an inclination of 18° with respect to the ecliptic.[1]
The body's observation arc begins with a precovery taken at the Siding Spring Observatory in June 1983, more than 15 years prior to its official discovery observation at Socorro.[2]
Close approaches
With an
Mars-crossing asteroid.[1]
Physical characteristics
In the
SMASS classification, 1998 QS52 is a Sq-subtype, that transitions between the stony S- and Q-type asteroids.[1] Observers at the NASA Infrared Telescope Facility have also characterized this body as an Sr-type, which transitions to the rare R-type asteroids.[6]
Rotation period
In 2008, two rotational
U=2/2).[3][5] An alternative period solution of 2.9 hours – or half of the above period – is also possible, though considered less likely by Warner.[4][a]
Diameter and albedo
1998 QS52 has not been observed by any of the space-based surveys such as
albedo of 0.20 for its surface, and calculates a diameter of 4.10 kilometers based on an absolute magnitude of 14.3.[3]
Numbering and naming
This
Notes
- ^ a b Lightcurve plot of (16960) 1998 QS52: alternative period solution of 2.900±0.001 hours with a brightness amplitude of 0.24±0.02 mag. Quality Code of 2. Summary figures at the LCDB
References
- ^ a b c d e f g h i j "JPL Small-Body Database Browser: 16960 (1998 QS52)" (2017-10-24 last obs.). Jet Propulsion Laboratory. Retrieved 17 January 2018.
- ^ a b c d e "16960 (1998 QS52)". Minor Planet Center. Retrieved 17 January 2018.
- ^ a b c d e f "LCDB Data for (16960)". Asteroid Lightcurve Database (LCDB). Retrieved 17 January 2018.
- ^ ISSN 1052-8091. Retrieved 17 January 2018.
- ^ ISSN 1052-8091. Retrieved 17 January 2018.
- ^ . Retrieved 17 January 2018.
- S2CID 53493339. Retrieved 17 January 2018.
- ^ a b "List of the Potentially Hazardous Asteroids (PHAs)". Minor Planet Center. Retrieved 18 January 2018.
- ^ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 24 February 2018.
External links
- Asteroid Lightcurve Database (LCDB), query form (info Archived 16 December 2017 at the Wayback Machine)
- Dictionary of Minor Planet Names, Google books
- Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
- (16960) 1998 QS52 at NeoDyS-2, Near Earth Objects—Dynamic Site
- (16960) 1998 QS52 at ESA–space situational awareness
- (16960) 1998 QS52 at the JPL Small-Body Database
