|Discovered by||20 January 2004|
|Discovery site||Cerro Paranal (309)|
|MPC designation||2004 BX159|
|Epoch 13 January 2016 (JD 2457400.5)|
|Uncertainty parameter 0|
|Observation arc||6804 days (18.63 yr)|
|Aphelion||2.9026 AU (434.22 Gm)|
|Perihelion||2.1639 AU (323.71 Gm)|
|2.5333 AU (378.98 Gm)|
|4.03 yr (1472.7 d)|
|0° 14m 40.02s /day|
|Earth MOID||1.14891 AU (171.874 Gm)|
|Jupiter MOID||2.35378 AU (352.120 Gm)|
2004 BX159, also written 2004 BX159, is an estimated 1.2-kilometer-sized body of the Solar System. It was thought to be a Mars-crossing asteroid because of its poorly known orbit after discovery, and was therefore listed on the Sentry Risk Table as a possible impactor. With an observation arc of 3 days, perihelion was determined to be ±3 1.5astronomical units (AU).
Precovery observations in archival data of the Canada-France-Hawaii Telescope on Mauna Kea were identified in early 2014, resulting in a dramatic improvement of the orbital accuracy, sufficient to recognize the object as a regular main belt asteroid, not posing any danger to Earth.
The body was subsequently linked by the Minor Planet Center with additional observations reported since 1997. It has now a well-established orbit, observed over decades, with the lowest possible uncertainty of 0.
- "JPL Small-Body Database Browser: (2004 BX159)" (2015-01-22 last obs.). Jet Propulsion Laboratory. Retrieved 30 March 2016.
- "Asteroid 2004 BX159 Impact Risk". Wayback Machine: NASA/JPL Near-Earth Object Program Office. 2014-04-01 [computed on 2011-09-14]. Archived from the original on April 1, 2014. Retrieved 2014-04-01.
- "WayBack Machine archive from 18 Feb 2007". Wayback Machine. 2007-02-18. Archived from the original on February 18, 2007. Retrieved 2013-01-15.
- JPL solution 3 archive is/3RvI
- Minor Planet Center Orbit and Observations
- National Aeronautics and Space Administration / Near Earth Object Program, Earth Impact Table for 2004 BX159
- JPL Small-Body Database Browser Orbital diagram and parameters for 2004 BX159
- 2004 BX159 – hohmanntransfer
- 2004 BX159 at the JPL Small-Body Database