Movatterモバイル変換
[0]ホーム
Asteroids with Satellites Database--Johnston's Archive
(702) Alaudaand Pichi unem
compiled by Wm. Robert Johnston
last updated21 September 2014--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
orbital data, primary (osculating elements)[JPL]: | semimajor axisa: | 3.191997731 AU | | orbital periodP: | 5.702982819 yr
(= 2083.014475 d) | | eccentricitye: | 0.020054628 | | perihelion distanceq: | 3.12798341 AU | | aphelion distanceQ: | 3.256012057 AU | | inclinationi: | 20.6112798° | | argument of perihelionω: | 351.67096° | | ascending nodeΩ: | 289.933133° | | mean anomalyM: | 102.06572° | | perihelion passageTP: | 2012 Oct 09.4323 | | Epoch: | 2014 May 23 | | data arc: | 1910-2014(1545 obs.) | | Earth MOID: | 2.11148 AU | | Jupiter Tisserand invariantTJ: | 3.096 |
orbital data, secondary: | binary dynamical type: | L [L14c] | | semimajor axisas: | 1227± 24 km[R11a] | | separation/primary radiusas/rp: | 12 [*D] | | separation/Hill radiusas/rH: | 0.026 [*D] | | orbital periodPs: | 4.914± 0.007d [R11a] | | eccentricityes: | 0.003± 0.02[R11a] | | normalized ang. mom.αL: | ? |
| other data, system (combined):| absolute mag.H: | 7.25[MPC] | | slope parameterG: | (0.15) [*A] | | effective diameterdE: | 201.96± 4.64 km [M11b] | | geometric albedo: | 0.054± 0.011[M11b] | | color indexU-B: | 0.316[JPL] | | color indexB-V: | 0.665[JPL] | | taxonomic type: | B (SMASSII) [JPL]
C (Tholen) [JPL] | | massm: | 6.06x1018 ± 3.6x1017kg [R11a] | | densityρ: | 1.57± 0.5 g/cm3[R11a] | | Hill radiusrH: | 47000 km [*D] |
other data, primary: | diameterdp: | 201.96± 4.64 km [M11b] | | rotation periodRPp: | 8.354± 0.001h [B08b] | | amplitude in mag., rotationalΔM: | ? | | pole directionΒ, λ: | ?,? |
other data, secondary: | diameterds: | 3.51± 0.9km [*D] | | diameter ratiods/dp: | 0.017± 0.004 [R11a] | | component mag. differenceΔM: | 8.8 [* D] | | rotation periodRPs: | ? | |
|
--(702) Alauda and Pichi unem --discovery and notes:
Primary discovered1910 Jul 16from Heidelberg, Germanyby J. Helffrich.Alternate designation(s):1910 KQ.Permanent number assigned -.
Named - for the Alaudidae bird family.
Companion discovered2007 Jul 26 by P. Rojo and J. L. Margotusingadaptive optics telescope observations from Very Large Telescope, ESO, Cerro Paranal, Chile.Announced2007 Aug 02 [R07c].Provisional designation S/2007 (702) 1.Permanent designation I Pichi unem, assigned 2011 Oct 12; named for the Mapudungun words for "little bird" [MPC76674].
--Links, more technical:
--Links, less technical:
--Links to ADS abstracts:
- Rojo, P. & Margot, J.-L. 2011, EPSC-DPS Joint Meeting 2011First Satellite to a B-type Asteroid, (702) Alauda: Dynamical Mass and Density
- Rojo, P. & Margot, J. L. 2011, The Astrophysical JournalMass and Density of the B-type Asteroid (702) Alauda
- Benishek, Vladimir 2008, Minor Planet BulletinCCD Photometry of Seven Asteroids at the Belgrade Astronomical Observatory
- Margot, Jean-Luc & Rojo, P. 2007, Bulletin of the American Astronomical SocietyDiscovery of a Satellite to Asteroid Family Member (702) Alauda
- Rojo, P. & Margot, J. L. 2007, Central Bureau Electronic TelegramsS/2007 (702) 1
- Fauerbach, Michael & Bennett, Thomas 2005, Minor Planet BulletinPhotometric lightcurve observations of 125 Liberatrix, 218 Bianca, 423 Diotima, 702 Alauda, 1963 Bezovec, and (5849) 1990 HF1
- Foglia, Sergio & Masi, Gianluca 2004, Minor Planet BulletinNew clusters for highly inclined main-belt asteroids
- Bus, S. & Binzel, R. P. 2004, NASA Planetary Data System702 Alauda CCD Spectrum
- Scardia, M., Ghiringhelli, D., & Debehogne, H. 1993, Astronomische NachrichtenRevised orbital elements of minor planets
- Pfleiderer, J., Pfleiderer, M., & Hanslmeier, A. 1987, Astronomy and Astrophysics Supplement SeriesPhotoelectric five-colour photometry of the asteroids 16 Psyche, 201 Penelope and 702 Alauda
- di Martino, M., Zappala, V., de Campos, J. A., Debehogne, H., & Lagerkvist, C.-I. 1987, Astronomy and Astrophysics Supplement SeriesRotational properties and lightcurves of the minor planets 94, 107, 197, 201, 360, 451, 511 and 702
- Renaux, J. 1922, Journal des ObservateursEléments de la planète 702 [1910 KQ]
©2007-2008, 2014by Wm. Robert Johnston.
Last modified21 September 2014.Return toHome. Return toAstronomy and Space. Return toAsteroids with Satellites.
[8]ページ先頭