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2016 DV1

January 01, 1970

2016 DV1 is a near-Earth asteroid estimated to be roughly 29–65 meters (95–210 feet) 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 (2.1 LD; 790,000 km; 490,000 mi).[3]

2016 DV1
Bistatic Solar System Radar image of 2016 DV1 on 3 March 2016.
Discovery[1]
Discovered byMLS
Discovery siteMount Lemmon Obs.
Discovery date28 February 2016
(first observation)
Designations
2016 DV1
NEO–Apollo[2][3]
Orbital characteristics[3]
Epoch 17 December 2020 (JD 2459200.5)
Uncertainty parameter 0[3][2]
Observation arc5 years
Aphelion3.0020 AU
Perihelion0.68115 AU
1.8417 AU
Eccentricity0.63015
2.50 yr (913 d)
311.68°
0° 23m 39.84s / day
Inclination3.3747°
161.69°
18 April 2021
80.068°
Earth MOID0.00099 AU (0.39 LD; 148,000 km)
Physical characteristics
Mean diameter
29–65 m (est. 0.25–0.05)[4][a]
40 m (assumed 0.14)[5]
0.084148±0.000005 h[6][7][b]
or 5.04888±0.0003 min
24.8[2][3]

Orbit edit

2016 DV1 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.[3] It has an Earth minimum orbital intersection distance of 0.001 AU (0.39 LD; 150,000 km). Due to its eccentric orbit, 2016 DV1 is also a Mars-crosser, crossing the orbit of the Red Planet at 1.66 AU.[3]

2016 discovery edit

It was first observed by the Mount Lemmon Survey on 28 February 2016,[1] when the asteroid was about 0.04 AU (6,000,000 km; 3,700,000 mi) from Earth and had a solar elongation of 174°. The last optical image was at 3 March 2016 03:08 UT.[2] Bistatic Solar System Radar (GSSR) with DSS-13 and the Green Bank Observatory were used to image the asteroid.[8] It passed closest approach to Earth on 3 March 2016 05:17 UT at a distance of 0.00264 AU (1.03 LD; 395,000 km; 245,000 mi)[3] and was quickly approaching the glare of the Sun thus preventing further optical observations.[9]

2021 approach edit

It was recovered on 17 February 2021 by Pan-STARRS[2] when the uncertainty in the asteroid's sky position covered about 1.2° of the sky.[10]

By early February 2021 the asteroid was brighter than apparent magnitude 24,[10][c] 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.[10] On 3 March 2021 it passed 0.0053 AU (2.1 LD; 790,000 km; 490,000 mi) from Earth.[3] 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 edit

Rotation period edit

In March 2016, a rotational lightcurve of 2016 DV1 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).[7][b] 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).[11]

Diameter edit

The diameter can only be estimated. Based on a generic absolute magnitude-to-diameter conversion, 2016 DV1 measures approximately 40 meters (130 feet) in diameter given an absolute magnitude of 24.8 and an assumed albedo of 0.14.[4][5] Since the near-Earth population shows a bimodal distribution with two albedo-peaks at 0.25 and 0.05, 2016 DV1 may measure 29–65 meters (95–210 feet) in diameter,[a] for a corresponding stony and carbonaceous composition, respectively.

Notes edit

  1. ^ a b CNEOS lists a generic size range of 29–65 meters (95–210 feet) which would be an average size of 47 meters (150 feet).
  2. ^ a b Warner (2016) lightcurve plot of 2016 DV1 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
  3. ^ 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 edit

  1. ^ a b "MPEC 2016-D64 : 2016 DV1". IAU Minor Planet Center. 29 February 2016. Retrieved 12 September 2020. (K16D01V)
  2. ^ a b c d e "2016 DV1". Minor Planet Center. Retrieved 12 September 2020.
  3. ^ a b c d e f g h i "JPL Small-Body Database Browser: (2016 DV1)" (2016-03-03 last obs.; arc: 4 days). Jet Propulsion Laboratory. Retrieved 12 September 2020. ()
  4. ^ a b "Asteroid Size Estimator". CNEOS NASA/JPL. Retrieved 12 September 2020.
  5. ^ a b "2016DV1 - Physical properties". esa. Retrieved 13 September 2020.
  6. ^ "LCDB Data for (2016+DV1)". Asteroid Lightcurve Database (LCDB). Retrieved 12 September 2020.
  7. ^ a b Warner, Brian D. (July 2016). (PDF). Minor Planet Bulletin. 43 (3): 240–250. Bibcode:2016MPBu...43..240W. ISSN 1052-8091. PMC 7288611. PMID 32539024. Archived from the original (PDF) on 27 July 2021. Retrieved 12 September 2020.
  8. ^ . Archived from the original on 27 July 2021. Retrieved 13 September 2020.{{cite web}}: CS1 maint: archived copy as title (link)
  9. ^ "2016DV1 Ephemerides for 3 March 2016". NEODyS (Near Earth Objects – Dynamic Site). from the original on 13 September 2020. Retrieved 13 September 2020.
  10. ^ a b c "2016DV1 Ephemerides for February-March 2021". NEODyS (Near Earth Objects – Dynamic Site). from the original on 12 September 2020. Retrieved 12 September 2020.
  11. ^ Behrend, Raoul. "Asteroids and comets rotation curves – 2016 DV1". Geneva Observatory. Retrieved 12 September 2020.

External links edit

  • 2016 DV1 at NeoDyS-2, Near Earth Objects—Dynamic Site
    • Ephemerides · Observation prediction · Orbital info · MOID · Proper elements · Observational info · Close approaches · Physical info · Orbit animation
  • 2016 DV1 at ESA–space situational awareness
    • Ephemerides · Observations · Orbit · Physical properties · Summary
  • 2016 DV1 at the JPL Small-Body Database
    • Close approach · Discovery · Ephemeris · Orbit diagram · Orbital elements · Physical parameters
  • DSS13-GBT Radar Images of 2016 DV1

January 01, 1970
2016, 2016, near, earth, asteroid, estimated, roughly, meters, feet, diameter, fast, rotating, asteroid, apollo, group, which, first, observed, mount, lemmon, survey, february, 2016, just, days, before, passed, earth, lunar, distance, march, 2016, elongated, f. 2016 DV1 is a near Earth asteroid estimated to be roughly 29 65 meters 95 210 feet 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 2 1 LD 790 000 km 490 000 mi 3 2016 DV1Bistatic Solar System Radar image of 2016 DV1 on 3 March 2016 Discovery 1 Discovered byMLSDiscovery siteMount Lemmon Obs Discovery date28 February 2016 first observation DesignationsMPC designation2016 DV1Minor planet categoryNEO Apollo 2 3 Orbital characteristics 3 Epoch 17 December 2020 JD 2459200 5 Uncertainty parameter 0 3 2 Observation arc5 yearsAphelion3 0020 AUPerihelion0 68115 AUSemi major axis1 8417 AUEccentricity0 63015Orbital period sidereal 2 50 yr 913 d Mean anomaly311 68 Mean motion0 23m 39 84s dayInclination3 3747 Longitude of ascending node161 69 Time of perihelion18 April 2021Argument of perihelion80 068 Earth MOID0 00099 AU 0 39 LD 148 000 km Physical characteristicsMean diameter29 65 m est 0 25 0 05 4 a 40 m assumed 0 14 5 Synodic rotation period0 084148 0 000005 h 6 7 b or 5 04888 0 0003 minAbsolute magnitude H 24 8 2 3 Contents 1 Orbit 2 2016 discovery 3 2021 approach 4 Physical characteristics 4 1 Rotation period 4 2 Diameter 5 Notes 6 References 7 External linksOrbit edit2016 DV1 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 3 It has an Earth minimum orbital intersection distance of 0 001 AU 0 39 LD 150 000 km Due to its eccentric orbit 2016 DV1 is also a Mars crosser crossing the orbit of the Red Planet at 1 66 AU 3 2016 discovery editIt was first observed by the Mount Lemmon Survey on 28 February 2016 1 when the asteroid was about 0 04 AU 6 000 000 km 3 700 000 mi from Earth and had a solar elongation of 174 The last optical image was at 3 March 2016 03 08 UT 2 Bistatic Solar System Radar GSSR with DSS 13 and the Green Bank Observatory were used to image the asteroid 8 It passed closest approach to Earth on 3 March 2016 05 17 UT at a distance of 0 00264 AU 1 03 LD 395 000 km 245 000 mi 3 and was quickly approaching the glare of the Sun thus preventing further optical observations 9 2021 approach editIt was recovered on 17 February 2021 by Pan STARRS 2 when the uncertainty in the asteroid s sky position covered about 1 2 of the sky 10 By early February 2021 the asteroid was brighter than apparent magnitude 24 10 c 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 10 On 3 March 2021 it passed 0 0053 AU 2 1 LD 790 000 km 490 000 mi from Earth 3 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 editRotation period edit In March 2016 a rotational lightcurve of 2016 DV1 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 7 b 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 11 Diameter edit The diameter can only be estimated Based on a generic absolute magnitude to diameter conversion 2016 DV1 measures approximately 40 meters 130 feet in diameter given an absolute magnitude of 24 8 and an assumed albedo of 0 14 4 5 Since the near Earth population shows a bimodal distribution with two albedo peaks at 0 25 and 0 05 2016 DV1 may measure 29 65 meters 95 210 feet in diameter a for a corresponding stony and carbonaceous composition respectively Notes edit a b CNEOS lists a generic size range of 29 65 meters 95 210 feet which would be an average size of 47 meters 150 feet a b Warner 2016 lightcurve plot of 2016 DV1 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 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 edit a b MPEC 2016 D64 2016 DV1 IAU Minor Planet Center 29 February 2016 Retrieved 12 September 2020 K16D01V a b c d e 2016 DV1 Minor Planet Center Retrieved 12 September 2020 a b c d e f g h i JPL Small Body Database Browser 2016 DV1 2016 03 03 last obs arc 4 days Jet Propulsion Laboratory Retrieved 12 September 2020 archive 09 Sep 2020 a b Asteroid Size Estimator CNEOS NASA JPL Retrieved 12 September 2020 a b 2016DV1 Physical properties esa Retrieved 13 September 2020 LCDB Data for 2016 DV1 Asteroid Lightcurve Database LCDB Retrieved 12 September 2020 a b Warner Brian D July 2016 Near Earth Asteorid Lightcurve Analysis at CS3 Palmer Divide Station 2016 January April PDF Minor Planet Bulletin 43 3 240 250 Bibcode 2016MPBu 43 240W ISSN 1052 8091 PMC 7288611 PMID 32539024 Archived from the original PDF on 27 July 2021 Retrieved 12 September 2020 Archived copy Archived from the original on 27 July 2021 Retrieved 13 September 2020 a href Template Cite web html title Template Cite web cite web a CS1 maint archived copy as title link 2016DV1 Ephemerides for 3 March 2016 NEODyS Near Earth Objects Dynamic Site Archived from the original on 13 September 2020 Retrieved 13 September 2020 a b c 2016DV1 Ephemerides for February March 2021 NEODyS Near Earth Objects Dynamic Site Archived from the original on 12 September 2020 Retrieved 12 September 2020 Behrend Raoul Asteroids and comets rotation curves 2016 DV1 Geneva Observatory Retrieved 12 September 2020 External links edit2016 DV1 at NeoDyS 2 Near Earth Objects Dynamic Site Ephemerides Observation prediction Orbital info MOID Proper elements Observational info Close approaches Physical info Orbit animation 2016 DV1 at ESA space situational awareness Ephemerides Observations Orbit Physical properties Summary 2016 DV1 at the JPL Small Body DatabaseClose approach Discovery Ephemeris Orbit diagram Orbital elements Physical parameters DSS13 GBT Radar Images of 2016 DV1 Retrieved from https en wikipedia org w index php title 2016 DV1 amp oldid 1187135195, wikipedia, wiki, book, books, library,

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