1806 Derice

1806 Derice
Discovery [1]
Discovery site Perth Observatory–Bickley
Discovery date 13 June 1971
Designations
MPC designation 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 13 January 2016 (JD 2457400.5)
Uncertainty parameter 0
Observation arc 66.04 yr (24120 days)
Aphelion 2.4748 AU (370.22 Gm)
Perihelion 1.9989 AU (299.03 Gm)
2.2368 AU (334.62 Gm)
Eccentricity 0.10638
3.35 yr (1221.9 d)
257.44°
0° 17m 40.596s / day
Inclination 3.8405°
271.12°
193.58°
Earth MOID 1.01575 AU (151.954 Gm)
Jupiter MOID 2.63924 AU (394.825 Gm)
Jupiter Tisserand parameter 3.627
Physical characteristics
Dimensions 10.14±0.41 km[4]
10.697±0.061 km[5]
10.7 km[6]
3.2240 h (0.13433 d)[1][7]
3.4602±0.0007 h[8]
3.22352±0.00004 h[lower-alpha 1]
3.2237±0.0001 h[lower-alpha 2]
3.2236±0.0005 h[lower-alpha 3]
0.282±0.025[4]
0.2474±0.0669[5]
0.2149[6]
S [3]
12.1

    1806 Derice, provisional designation 1971 LC, is a stony asteroid from the inner regions of the asteroid belt, about 10 kilometers in diameter. It was discovered on 13 June 1971 at the Bickley site of the Perth Observatory in Western Australia and was the first discovery of a minor planet ever made in Oceania.[2][9]

    It orbits the Sun at a distance of 2.0–2.5 AU once every 3 years and 4 months (1,222 days). With a semi-major axis of 2.24 AU, an orbital inclination of 3.8 degrees, and an eccentricity of 0.11 it is a core member of the Flora family of asteroids.[3] It has a rotation period of 3.2 hours. The assumed S-type asteroid has an albedo in the range of 0.21 to 0.28.[4][5][6]

    The asteroid is named after Derice Harwood, wife of Dennis Harwood, a member of the astrometric team at the discovering observatory.[2]

    Notes

    1. ↑ Pravec 2009, web publication, summary figures at the Light Curve Data Base-(1806) Derice
    2. ↑ Pravec 2011, summary figures: LCDB – (1806) Derice
    3. ↑ Pravec 2012, summary figures: LCDB – (1806) Derice

    References

    1. 1 2 3 "JPL Small-Body Database Browser: 1806 Derice (1971 LC)" (2015-10-14 last obs.). Jet Propulsion Laboratory. Retrieved 20 April 2016.
    2. 1 2 3 Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names – (1806) Derice. Springer Berlin Heidelberg. p. 145. ISBN 978-3-540-29925-7. Retrieved November 2015.
    3. 1 2 3 "LCDB Data for (1806) Derice". Asteroid Lightcurve Database (LCDB). Retrieved November 2015.
    4. 1 2 3 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. Retrieved November 2015.
    5. 1 2 3 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 November 2015.
    6. 1 2 3 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 November 2015.
    7. ↑ 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 November 2015.
    8. ↑ Behrend, Raoul. "Asteroids and comets rotation curves – (1806) Derice". Geneva Observatory. Retrieved November 2015.
    9. ↑ "1806 Derice (1971 LC)". Minor Planet Center. Retrieved November 2015.

    External links


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