2015 DR215

Near-Earth asteroid April 2022 yes 2015 DR 215 #FFC2E0 Pan-STARRS 1 Haleakalā Obs. 18 February 2015 2015 DR 215 NEOAtiraPHA 21 January 2022 (JD 2459600.5) 0 7.12 yr (2,602 days) 0.9809 AU 0.3522 AU 0.6665 AU 0.4716 0.54 yr (199 days) 74.459° 1.8112013 ms / day 4.085° 314.961° 42.298° 0.044412 AU km 205 m 0.266 Sr 20.51 2015 DR 215 is a stony near-Earth asteroid of the Atira class residing within Earth's orbit. It was discovered on 18 February 2015 by the Pan-STARRS 1 survey at Haleakalā Observatory at Maui, Hawaiʻi. The asteroid has a diameter of about 200 m ft and makes close approaches within 0.05 AU e6km e6mi unit in of Earth, making it a potentially hazardous object. On 11 March 2022, it made a close approach 0.045 AU e6km e6mi unit from Earth, reaching a peak apparent magnitude of 17 as it streaked across the southern sky. Discovery 2015 DR 215 was discovered on 18 February 2015 by the Pan-STARRS 1 survey at Haleakalā Observatory at Maui, Hawaiʻi. It was first observed at apparent magnitude 20.7, located in the southern sky 28 degrees below the ecliptic with an angular separation (solar elongation) of 76 degrees from the Sun. Follow-up observations from the Mauna Kea Observatory and Cerro Tololo Inter-American Observatory commenced, establishing an observation arc of 12 days until its discovery announcement by the Minor Planet Center on 2 March 2015. On 5 March 2016, 2015 DR 215 was recovered by the ESA Optical Ground Station at apparent magnitude 19, at solar elongations below 56 degrees. It was observed to be about 0.5 degrees away from its predicted positions in March 2016. The recovery observations significantly reduced the asteroid's orbital uncertainty, bringing its uncertainty parameter down from 9 to 3. 2022, 2015 DR 215 has been observed for over 7 years, with a well-determined orbit at an uncertainty parameter of 0. Classification 2015 DR 215 is one of a small number of Atira class asteroids that are orbiting entirely within the Earth's orbit. The taxonomic class of 2015 DR 215 in the Bus–DeMeo scheme is Sr, indicating a stony composition. Numbering and naming As of 2023, this minor planet has neither been numbered nor named by the Minor Planet Center. References 2022-04-04 last obs. JPL Small-Body Database Browser: (2015 DR215) https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=3712675;cad=1 Jet Propulsion Laboratory 17 April 2021 2015 DR215 http://www.minorplanetcenter.net/db_search/show_object?object_id=2015+DR215 Minor Planet Center 17 April 2021 MPEC 2015-E12 : 2015 DR215 https://minorplanetcenter.net/mpec/K15/K15E12.html Minor Planet Electronic Circulars Minor Planet Center 2 March 2015 17 April 2021 MPEC 2016-E72 : 2015 DR215 https://minorplanetcenter.net/mpec/K16/K16E72.html Minor Planet Electronic Circulars Minor Planet Center 7 March 2016 17 April 2021 A spectroscopic survey of the small near-Earth asteroid population: Peculiar taxonomic distribution and phase reddening 6 Perna D. Barucci M. A. Fulchignoni M. Popescu M. Belskaya I. Fornasier S. Doressoundiram A. Lantz C. Merlin F. Planetary and Space Science 157 82–95 August 2018 10.1016/j.pss.2018.03.008 1803.08953 2018P&SS..157...82P Understanding the evolution of Atira-class asteroid 2019 AQ3, a major step towards the future discovery of the Vatira population de la Fuente Marcos C. de la Fuente Marcos R. Monthly Notices of the Royal Astronomical Society 487 2 2742–2752 August 2019 10.1093/mnras/stz1437 free 1905.08695 2019MNRAS.487.2742D External links 2015dr215 2015DR215 3712675 collapsed Astronomy Outer Space # Category:Minor planet object articles (unnumbered) # 20220311 20150218