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1806 Derice

January 01, 1970

1806 Derice, provisional designation 1971 LC, is a stony Flora asteroid from the inner regions of the asteroid belt, approximately 10 kilometers in diameter. Discovered on 13 June 1971, at the Bickley site of the Perth Observatory in Western Australia, it was the first discovery of a minor planet ever made in Oceania. The asteroid was named after the wife of Dennis Harwood, staff member at Bickley.[2][10]

1806 Derice
Discovery[1]
Discovery sitePerth Obs. (Bickley)
Discovery date13 June 1971
Designations
(1806) Derice
Named after
Derice Harwood
(wife of astronomer)[2]
1971 LC · 1927 EB
1942 TD · 1949 YD
1967 EB
main-belt · Flora[3]
Orbital characteristics[1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc67.44 yr (24,634 days)
Aphelion2.4750 AU
Perihelion1.9990 AU
2.2370 AU
Eccentricity0.1064
3.35 yr (1,222 days)
74.051°
0° 17m 40.56s / day
Inclination3.8406°
271.10°
193.78°
Physical characteristics
Dimensions7.976±0.759[4]
10.14±0.41 km[5]
10.697±0.061 km[6]
10.7 km (derived)[7]
3.22352±0.00004 h[a]
3.2236±0.0005 h[a]
3.2237±0.0001 h[a]
3.2240±0.0005 h[8]
3.4602±0.0007 h[9]
0.035±0.149[4]
0.2149[7]
0.2474±0.0669[6]
0.282±0.025[5]
S[3]
11.65±0.06 (R)[a] · 12.00[5][6] · 12.1[1] · 12.14±0.078[3][7]

Classification and orbit edit

The S-type asteroid is a member of the Flora family, one of the largest groups of stony asteroids in the main-belt. It orbits the Sun at a distance of 2.0–2.5 AU once every 3 years and 4 months (1,222 days). Its orbit has an eccentricity of 0.11 and an inclination of 4° with respect to the ecliptic.[1] The first used precovery was taken at Palomar Observatory in 1949, extending the asteroid's observation arc by 22 years prior to its official discovery at Bickley. The first unused observation dates back to 1927, at Tokyo Observatory.[10]

Physical characteristics edit

Lightcurves edit

A large number of rotational lightcurves for this asteroid were obtained from several photometric observations. The first observations were made by Italian astronomer Silvano Casulli in November 2006, and gave a rotation period 3.4602±0.0007 hours with a brightness amplitude of 0.19 in magnitude (U=3).[9]

One month later, in December 2006, observations at the Carbuncle Hill Observatory gave a period of 3.2240±0.0005 hours with an identical amplitude of 0.19 in magnitude (U=3).[8]

Between November 2009 and December 2012, Czech astronomer Petr Pravec at Ondřejov Observatory obtained three more lightcurves with periods between 3.2235 and 3.2237 hours and corresponding amplitudes of 0.07. 0.10 and 0.10, respectively (U=3/3/3).[a]

Diameter and albedo edit

According to the space-based surveys carried out by the Japanese Akari satellite and the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, the asteroid measures between 8.0 and 10.7 kilometers in diameter, respectively, and its surface has an albedo between 0.035 and 0.282.[4][5][6] Astronomer Petr Pravec and the Collaborative Asteroid Lightcurve Link derive an albedo of 0.21 and a diameter of 10.7 kilometers with an absolute magnitude of 12.4.[3][7]

Naming edit

This minor planet was named after Derice Harwood, wife of Dennis Harwood, astrometric staff member of the discovering Perth Observatory.[2] The official naming citation was published by the Minor Planet Center on 11 December 1981 (M.P.C. 6530).[11]

Notes edit

  1. ^ a b c d e Pravec, P.; Wolf, M.; Sarounova, L. (2009, 2011 and 2012) web publication. Summary figures listed at the Light Curve Data Base-(1806) Derice

References edit

  1. ^ a b c d (2017-05-06 last obs.). Jet Propulsion Laboratory. Archived from the original on 18 September 2020. Retrieved 3 June 2017.
  2. ^ a b c Schmadel, Lutz D. (2007). "(1806) Derice". Dictionary of Minor Planet Names – (1806) Derice. Springer Berlin Heidelberg. p. 145. doi:10.1007/978-3-540-29925-7_1807. ISBN 978-3-540-00238-3.
  3. ^ a b c d "LCDB Data for (1806) Derice". Asteroid Lightcurve Database (LCDB). Retrieved 16 May 2016.
  4. ^ a b c Masiero, Joseph R.; Grav, T.; Mainzer, A. K.; Nugent, C. R.; Bauer, J. M.; Stevenson, R.; et al. (August 2014). "Main-belt Asteroids with WISE/NEOWISE: Near-infrared Albedos". The Astrophysical Journal. 791 (2): 11. arXiv:1406.6645. Bibcode:2014ApJ...791..121M. doi:10.1088/0004-637X/791/2/121. Retrieved 8 December 2016.
  5. ^ a b c d Usui, Fumihiko; Kuroda, Daisuke; Müller, Thomas G.; Hasegawa, Sunao; Ishiguro, Masateru; Ootsubo, Takafumi; et al. (October 2011). "Asteroid Catalog Using Akari: AKARI/IRC Mid-Infrared Asteroid Survey". Publications of the Astronomical Society of Japan. 63 (5): 1117–1138. Bibcode:2011PASJ...63.1117U. doi:10.1093/pasj/63.5.1117. (online, AcuA catalog p. 153)
  6. ^ a b c d Mainzer, A.; Grav, T.; Masiero, J.; Hand, E.; Bauer, J.; Tholen, D.; et al. (November 2011). "NEOWISE Studies of Spectrophotometrically Classified Asteroids: Preliminary Results". The Astrophysical Journal. 741 (2): 25. arXiv:1109.6407. Bibcode:2011ApJ...741...90M. doi:10.1088/0004-637X/741/2/90. Retrieved 16 May 2016.
  7. ^ a b c d Pravec, Petr; Harris, Alan W.; Kusnirák, Peter; Galád, Adrián; Hornoch, Kamil (September 2012). "Absolute magnitudes of asteroids and a revision of asteroid albedo estimates from WISE thermal observations". Icarus. 221 (1): 365–387. Bibcode:2012Icar..221..365P. doi:10.1016/j.icarus.2012.07.026. Retrieved 4 November 2015.
  8. ^ a b Pray, Donald P.; Galad, Adrian; Husarik, Marek; Oey, Julian (March 2008). "Lightcurve Analysis of Fourteen Asteroids". The Minor Planet Bulletin. 35 (1): 34–36. Bibcode:2008MPBu...35...34P. ISSN 1052-8091. Retrieved 4 November 2015.
  9. ^ a b Behrend, Raoul. "Asteroids and comets rotation curves – (1806) Derice". Geneva Observatory. Retrieved 16 May 2016.
  10. ^ a b "1806 Derice (1971 LC)". Minor Planet Center. Retrieved 16 May 2016.
  11. ^ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 16 May 2016.

External links edit

  • Asteroid Lightcurve Database (LCDB), query form (info 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
  • Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
  • 1806 Derice at AstDyS-2, Asteroids—Dynamic Site
    • Ephemeris · Observation prediction · Orbital info · Proper elements · Observational info
  • 1806 Derice at the JPL Small-Body Database  
    • Close approach · Discovery · Ephemeris · Orbit diagram · Orbital elements · Physical parameters

January 01, 1970
1806, derice, provisional, designation, 1971, stony, flora, asteroid, from, inner, regions, asteroid, belt, approximately, kilometers, diameter, discovered, june, 1971, bickley, site, perth, observatory, western, australia, first, discovery, minor, planet, eve. 1806 Derice provisional designation 1971 LC is a stony Flora asteroid from the inner regions of the asteroid belt approximately 10 kilometers in diameter Discovered on 13 June 1971 at the Bickley site of the Perth Observatory in Western Australia it was the first discovery of a minor planet ever made in Oceania The asteroid was named after the wife of Dennis Harwood staff member at Bickley 2 10 1806 DericeDiscovery 1 Discovery sitePerth Obs Bickley Discovery date13 June 1971DesignationsMPC designation 1806 DericeNamed afterDerice Harwood wife of astronomer 2 Alternative designations1971 LC 1927 EB1942 TD 1949 YD1967 EBMinor planet categorymain belt Flora 3 Orbital characteristics 1 Epoch 4 September 2017 JD 2458000 5 Uncertainty parameter 0Observation arc67 44 yr 24 634 days Aphelion2 4750 AUPerihelion1 9990 AUSemi major axis2 2370 AUEccentricity0 1064Orbital period sidereal 3 35 yr 1 222 days Mean anomaly74 051 Mean motion0 17m 40 56s dayInclination3 8406 Longitude of ascending node271 10 Argument of perihelion193 78 Physical characteristicsDimensions7 976 0 759 4 10 14 0 41 km 5 10 697 0 061 km 6 10 7 km derived 7 Synodic rotation period3 22352 0 00004 h a 3 2236 0 0005 h a 3 2237 0 0001 h a 3 2240 0 0005 h 8 3 4602 0 0007 h 9 Geometric albedo0 035 0 149 4 0 2149 7 0 2474 0 0669 6 0 282 0 025 5 Spectral typeS 3 Absolute magnitude H 11 65 0 06 R a 12 00 5 6 12 1 1 12 14 0 078 3 7 Contents 1 Classification and orbit 2 Physical characteristics 2 1 Lightcurves 2 2 Diameter and albedo 3 Naming 4 Notes 5 References 6 External linksClassification and orbit editThe S type asteroid is a member of the Flora family one of the largest groups of stony asteroids in the main belt It orbits the Sun at a distance of 2 0 2 5 AU once every 3 years and 4 months 1 222 days Its orbit has an eccentricity of 0 11 and an inclination of 4 with respect to the ecliptic 1 The first used precovery was taken at Palomar Observatory in 1949 extending the asteroid s observation arc by 22 years prior to its official discovery at Bickley The first unused observation dates back to 1927 at Tokyo Observatory 10 Physical characteristics editLightcurves edit A large number of rotational lightcurves for this asteroid were obtained from several photometric observations The first observations were made by Italian astronomer Silvano Casulli in November 2006 and gave a rotation period 3 4602 0 0007 hours with a brightness amplitude of 0 19 in magnitude U 3 9 One month later in December 2006 observations at the Carbuncle Hill Observatory gave a period of 3 2240 0 0005 hours with an identical amplitude of 0 19 in magnitude U 3 8 Between November 2009 and December 2012 Czech astronomer Petr Pravec at Ondrejov Observatory obtained three more lightcurves with periods between 3 2235 and 3 2237 hours and corresponding amplitudes of 0 07 0 10 and 0 10 respectively U 3 3 3 a Diameter and albedo edit According to the space based surveys carried out by the Japanese Akari satellite and the NEOWISE mission of NASA s Wide field Infrared Survey Explorer the asteroid measures between 8 0 and 10 7 kilometers in diameter respectively and its surface has an albedo between 0 035 and 0 282 4 5 6 Astronomer Petr Pravec and the Collaborative Asteroid Lightcurve Link derive an albedo of 0 21 and a diameter of 10 7 kilometers with an absolute magnitude of 12 4 3 7 Naming editThis minor planet was named after Derice Harwood wife of Dennis Harwood astrometric staff member of the discovering Perth Observatory 2 The official naming citation was published by the Minor Planet Center on 11 December 1981 M P C 6530 11 Notes edit a b c d e Pravec P Wolf M Sarounova L 2009 2011 and 2012 web publication Summary figures listed at the Light Curve Data Base 1806 DericeReferences edit a b c d JPL Small Body Database Browser 1806 Derice 1971 LC 2017 05 06 last obs Jet Propulsion Laboratory Archived from the original on 18 September 2020 Retrieved 3 June 2017 a b c Schmadel Lutz D 2007 1806 Derice Dictionary of Minor Planet Names 1806 Derice Springer Berlin Heidelberg p 145 doi 10 1007 978 3 540 29925 7 1807 ISBN 978 3 540 00238 3 a b c d LCDB Data for 1806 Derice Asteroid Lightcurve Database LCDB Retrieved 16 May 2016 a b c Masiero Joseph R Grav T Mainzer A K Nugent C R Bauer J M Stevenson R et al August 2014 Main belt Asteroids with WISE NEOWISE Near infrared Albedos The Astrophysical Journal 791 2 11 arXiv 1406 6645 Bibcode 2014ApJ 791 121M doi 10 1088 0004 637X 791 2 121 Retrieved 8 December 2016 a b c d Usui Fumihiko Kuroda Daisuke Muller Thomas G Hasegawa Sunao Ishiguro Masateru Ootsubo Takafumi et al October 2011 Asteroid Catalog Using Akari AKARI IRC Mid Infrared Asteroid Survey Publications of the Astronomical Society of Japan 63 5 1117 1138 Bibcode 2011PASJ 63 1117U doi 10 1093 pasj 63 5 1117 online AcuA catalog p 153 a b c d Mainzer A Grav T Masiero J Hand E Bauer J Tholen D et al November 2011 NEOWISE Studies of Spectrophotometrically Classified Asteroids Preliminary Results The Astrophysical Journal 741 2 25 arXiv 1109 6407 Bibcode 2011ApJ 741 90M doi 10 1088 0004 637X 741 2 90 Retrieved 16 May 2016 a b c d Pravec Petr Harris Alan W Kusnirak Peter Galad Adrian Hornoch Kamil September 2012 Absolute magnitudes of asteroids and a revision of asteroid albedo estimates from WISE thermal observations Icarus 221 1 365 387 Bibcode 2012Icar 221 365P doi 10 1016 j icarus 2012 07 026 Retrieved 4 November 2015 a b Pray Donald P Galad Adrian Husarik Marek Oey Julian March 2008 Lightcurve Analysis of Fourteen Asteroids The Minor Planet Bulletin 35 1 34 36 Bibcode 2008MPBu 35 34P ISSN 1052 8091 Retrieved 4 November 2015 a b Behrend Raoul Asteroids and comets rotation curves 1806 Derice Geneva Observatory Retrieved 16 May 2016 a b 1806 Derice 1971 LC Minor Planet Center Retrieved 16 May 2016 MPC MPO MPS Archive Minor Planet Center Retrieved 16 May 2016 External links editAsteroid 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 Geneve Raoul Behrend Discovery Circumstances Numbered Minor Planets 1 5000 Minor Planet Center 1806 Derice at AstDyS 2 Asteroids Dynamic Site Ephemeris Observation prediction Orbital info Proper elements Observational info 1806 Derice at the JPL Small Body Database nbsp Close approach Discovery Ephemeris Orbit diagram Orbital elements Physical parameters Retrieved from https en wikipedia org w index php title 1806 Derice amp oldid 1191787971, wikipedia, wiki, book, books, library,

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