Movatterモバイル変換
[0]ホーム
Asteroids with Satellites Database--Johnston's Archive
(9069) Hovland
compiled by Wm. Robert Johnston
last updated29 May 2019--Orbital and physical data--
(Seethis page for definitions of quantities; source codes in brackets, seethis link for full references; *A, *D, and *E indicate assumed, derived, and estimated values, respectively.)
dynamical type, primary:main belt asteroid, Hungaria
orbital data, primary (osculating elements)[JPL]: | semimajor axisa: | 1.913197745 AU | | orbital periodP: | 2.646354328 yr
(= 966.5809183 d) | | eccentricitye: | 0.118204674 | | perihelion distanceq: | 1.687048829 AU | | aphelion distanceQ: | 2.139346661 AU | | inclinationi: | 19.5717226° | | argument of perihelionω: | 171.0414296° | | ascending nodeΩ: | 247.938722° | | mean anomalyM: | 200.2385773° | | perihelion passageTP: | 2015 Jul 25.95095 | | Epoch: | 2014 May 23 | | data arc: | 1991-2013(656 obs.) | | Earth MOID: | 0.700873 AU | | Jupiter Tisserand invariantTJ: | 3.854 |
orbital data, secondary: | binary dynamical type: | A [M09a] | | semimajor axisas: | 7.2 km[*E] | | separation/primary radiusas/rp: | 5.2 [*E] | | separation/Hill radiusas/rH: | 0.020 [*E] | | orbital periodPs: | 1.264± 0.0004d [W05b] | | eccentricityes: | ? | | normalized ang. mom.αL: | 0.82[M09a] |
| other data, system (combined):| absolute mag.H: | 14.2[MPC] | | slope parameterG: | (0.15) [*A] | | effective diameterdE: | 2.9± 0.4 km [M16a] | | geometric albedo: | 0.37[*E] | | color indexU-B: | ? | | color indexB-V: | ? | | taxonomic type: | ? | | massm: | ? | | densityρ: | (1.6 g/cm3) [*A] | | Hill radiusrH: | 370 km [*E] |
other data, primary: | diameterdp: | 2.78 km [W05b] | | rotation periodRPp: | 4.2175± 0.0001h [W05b] | | amplitude in mag., rotationalΔM: | 0.09 [W05b] | | pole directionΒ, λ: | ?,? |
other data, secondary: | diameterds: | >0.83km [*D] | | diameter ratiods/dp: | >0.3 [W05b] | | component mag. differenceΔM: | <2.6 [*D] | | rotation periodRPs: | ? | |
|
--(9069) Hovland --discovery and notes:
Primary discovered1993 Jul 16from Palomar Observatory, California, USAby E. F. Helin.Alternate designation(s):1993 OV, 1991 XF5.Linked to prediscovery observations from 1991 Dec 01.Permanent number assigned 1998 Aug 08.
Named 2001 May 09 for Larry E. Hovland (1947-) [MPC042669].
Companion discovered2004 Oct usinglightcurve observations.Announced2004 Nov 16.
--Links, more technical:
--Links, less technical:
--Links to ADS abstracts:
- Warner, Brian D. 2013, Minor Planet BulletinSeeing Double Old and New: Observations and Lightcurve Analysis at the Palmer Divide Observatory of Six Binary Asteroids
- Marchis, Franck, Berthier, J., Burns, K. J., Descamps, P., Durech, J., Emery, J. P., Enriquez, J. E., Lainey, V., Reiss, A. E., & Vachier, F. 2010, Bulletin of the American Astronomical SocietyCharacteristics of Known Triple Asteroid Systems in the Main Belt
- Reiss, A. E., Marchis, F., & Emery, J. P. 2009, AGU Fall Meeting AbstractsVisible-Wavelength Integrated Spectroscopy of Binary Asteroids
- Marchis, F., Descamps, P., Berthier, J., Colas, F., Melbourne, J., Stockton, A. N., Fassnacht, C. D., & Dupuy, T. J. 2009, Central Bureau Electronic TelegramsOccultations of the (93) Minerva System
©2004-2014, 2019by Wm. Robert Johnston.
Last modified29 May 2019.Return toHome. Return toAstronomy and Space. Return toAsteroids with Satellites.
[8]ページ先頭