2016 DV1

Apollo near-Earth asteroid September 2020 yes 2016 DV 1 #FFC2E0 2016DV1 anim.gif Bistatic Solar System Radar image of 2016 DV 1 on 3 March 2016. MLS Mount Lemmon Obs. 28 February 2016(first observation) 2016 DV 1 NEO–Apollo 17 December 2020 (JD 2459200.5) 0 5 years 3.0020 AU 0.68115 AU 18 April 2021 1.8417 AU 0.63015 2.50 yr (913 d) 311.68° 0.3944 ms / day 3.3747° 161.69° 80.068° 0.00099 AU LD km on 29 - 65 m (est. 0.25–0.05)cneos40 m (assumed 0.14) 0.084148 0.000005 hlightcurve-plot-Warneror 5.04888 0.0003 min 24.8 2016 DV 1 is a near-Earth asteroid estimated to be roughly 29 - 65 m ft 2 off us in diameter. It is a fast rotating asteroid of the Apollo group which was first observed by the Mount Lemmon Survey on 28 February 2016, just days before it passed Earth at 1 lunar distance (LD) on 3 March 2016. The elongated fast rotator has a rotation period of 303 seconds. It was recovered in February 2021 as it was about to pass Earth on 3 March 2021 at a distance of 0.0053 AU LD km mi on. Orbit 2016 DV 1 orbits the Sun at a distance of 0.7–3.0 AU once every 2 years and 6 months (913 days; semi-major axis of 1.84 AU). Its orbit has a high eccentricity of 0.63 and an inclination of 3° with respect to the ecliptic. It has an Earth minimum orbital intersection distance of 0.001 AU LD km on off 2. Due to its eccentric orbit, 2016 DV 1 is also a Mars-crosser, crossing the orbit of the Red Planet at 1.66 AU. 2016 discovery It was first observed by the Mount Lemmon Survey on 28 February 2016, when the asteroid was about 0.04 AU km mi on from Earth and had a solar elongation of 174°. The last optical image was at 3 March 2016 03:08 UT. Bistatic Solar System Radar (GSSR) with DSS-13 and the Green Bank Observatory were used to image the asteroid.https://ssd.jpl.nasa.gov/dat/radar_data_ast.txt Archived copy 13 September 2020 27 July 2021 https://web.archive.org/web/20210727041322/https://ssd.jpl.nasa.gov/dat/radar_data_ast.txt dead It passed closest approach to Earth on 3 March 2016 05:17 UT at a distance of 0.00264 AU LD km mi on and was quickly approaching the glare of the Sun thus preventing further optical observations. 2021 approach It was recovered on 17 February 2021 by Pan-STARRS when the uncertainty in the asteroid's sky position covered about 1.2° of the sky. By early February 2021 the asteroid was brighter than apparent magnitude 24,magnitude which still placed it near the limiting magnitude of even the best automated astronomical surveys. It came to opposition (opposite the Sun in the sky) around 26 February 2021 at around magnitude 19. On 3 March 2021 it passed 0.0053 AU LD km mi 2 on from Earth. It was not listed on the Sentry Risk Table because the line of variation (LOV) did not pass through where Earth will be. Physical characteristics Rotation period In March 2016, a rotational lightcurve of 2016 DV 1 was obtained from photometric observations by American astronomer Brian Warner at the Palmer Divide Station U81 at the Center for Solar System Studies in California. Lightcurve analysis gave a well-defined rotation period of 0.084148 0.000005 hours (or 302.9 seconds) with a high brightness variation of 0.56 0.04 in magnitude, indicative of an irregular shape (U=3).lightcurve-plot-Warner On the following night, European astronomers Siegfried Eggl, William Thuillot, Maria Kudryashova, and Raoul Behrend determined a similar period of 0.08435 0.00005 hours (or 303.7 seconds) and an even higher amplitude of 1.02 0.03 magnitude.(U=3). Diameter The diameter can only be estimated. Based on a generic absolute magnitude-to-diameter conversion, 2016 DV 1 measures approximately 40 m ft 2 off us in diameter given an absolute magnitude of 24.8 and an assumed albedo of 0.14. Since the near-Earth population shows a bimodal distribution with two albedo-peaks at 0.25 and 0.05, 2016 DV 1 may measure 29 - 65 m ft 2 off us in diameter,cneos for a corresponding stony and carbonaceous composition, respectively. Notes lightcurve-plot-Warner Warner (2016) lightcurve plot of 2016 DV 1 rotation period 0.084148 0.000005 hours with a brightness amplitude of 0.56 0.04 mag. Quality code: 3. Summary figures at the Center for Solar System Studies and at the LCDB cneos CNEOS lists a generic size range of 29 - 65 m ft 2 off us which would be an average size of 47 m ft 2 off us. magnitude Do not confuse the fixed value of absolute magnitude (H) with the variable value of apparent magnitude. Absolute magnitude is how bright the object would be if it was both 1 AU from Earth and the Sun, and is useful for estimating the diameter of the object. Apparent magnitude is how bright the object is on a given date/time. References MPEC 2016-D64 : 2016 DV1 IAU Minor Planet Center 2016-02-29 https://www.minorplanetcenter.net/mpec/K16/K16D64.html 2020-09-12 (K16D01V) 2016-03-03 last obs.; arc: 4 days JPL Small-Body Database Browser: (2016 DV1) https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=3744833;cad=1 Jet Propulsion Laboratory 12 September 2020 (archive 09 Sep 2020) 2016 DV1 Minor Planet Center https://www.minorplanetcenter.net/db_search/show_object?object_id=2016+DV1 12 September 2020 2016 DV1 12 September 2020 Warner Brian D. July 2016 Near-Earth Asteroid Lightcurve Analysis at CS3-Palmer Divide Station: 2016 January–April Minor Planet Bulletin 43 3 240–250 32539024 7288611 http://www.minorplanet.info/MPB/issues/MPB_43-3.pdf 2016MPBu...43..240W 1052-8091 12 September 2020 27 July 2021 https://web.archive.org/web/20210727032747/http://www.minorplanet.info/MPB/issues/MPB_43-3.pdf dead Asteroids and comets rotation curves – 2016 DV1 Behrend Raoul Geneva Observatory http://obswww.unige.ch/~behrend/page5cou.html#16d01v 12 September 2020 11 November 2018 https://web.archive.org/web/20181111134209/http://obswww.unige.ch/~behrend/page5cou.html#16d01v dead 2016DV1 Ephemerides for 3 March 2016 NEODyS (Near Earth Objects Dynamic Site) https://newton.spacedys.com/neodys/index.php?pc=1.1.3.1&n=2016DV1&oc=500&y0=2016&m0=3&d0=3&h0=0&mi0=0&y1=2016&m1=3&d1=4&h1=0&mi1=0&ti=1.0&tiu=hours https://web.archive.org/web/20200913002439/https://newton.spacedys.com/neodys/index.php?pc=1.1.3.1&n=2016DV1&oc=500&y0=2016&m0=3&d0=3&h0=0&mi0=0&y1=2016&m1=3&d1=4&h1=0&mi1=0&ti=1.0&tiu=hours 2020-09-13 live 2020-09-13 2016DV1 Ephemerides for February-March 2021 NEODyS (Near Earth Objects Dynamic Site) https://newton.spacedys.com/neodys/index.php?pc=1.1.3.1&n=2016DV1&oc=500&y0=2021&m0=2&d0=1&h0=0&mi0=0&y1=2021&m1=3&d1=7&h1=0&mi1=0&ti=1.0&tiu=days https://web.archive.org/web/20200912015845/https://newton.spacedys.com/neodys/index.php?pc=1.1.3.1&n=2016DV1&oc=500&y0=2021&m0=2&d0=1&h0=0&mi0=0&y1=2021&m1=3&d1=7&h1=0&mi1=0&ti=1.0&tiu=days 2020-09-12 live 2020-09-12 2016DV1 - Physical properties esa http://neo.ssa.esa.int/search-for-asteroids?tab=physprops&des=2016DV1 13 September 2020 Asteroid Size Estimator CNEOS NASA/JPL https://cneos.jpl.nasa.gov/tools/ast_size_est.html 12 September 2020 External links 2016+DV1 2016DV1 3744833 DSS13-GBT Radar Images of 2016 DV1 # Category:Minor planet object articles (unnumbered) Category:Discoveries by MLS Category:Radar-imaged asteroids # 20160303 20210303 20160228