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Asteroids with Satellites Database--Johnston's Archive
(3749) Balam, S/2002 (3749) 1,and third component
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: | 2.236702937 AU | | orbital periodP: | 3.345189033 yr
(= 1221.8302940 d) | | eccentricitye: | 0.109273190 | | perihelion distanceq: | 1.99229127 AU | | aphelion distanceQ: | 2.481114602 AU | | inclinationi: | 5.3823141° | | argument of perihelionω: | 173.985299° | | ascending nodeΩ: | 295.740745° | | mean anomalyM: | 260.393938° | | perihelion passageTP: | 2015 Apr 26.0602 | | Epoch: | 2014 May 23 | | data arc: | 1954-2013(1074 obs.) | | Earth MOID: | 1.00875 AU | | Jupiter Tisserand invariantTJ: | 3.624 |
orbital data, S/2002 (3749) 1: | binary dynamical type: | W [P07f] | | semimajor axisas: | 289± 13 km[M08c] | | separation/primary radiusas/rp: | 150 [*D] | | separation/Hill radiusas/rH: | 0.220 [*D] | | orbital periodPs: | 61± 11d [M08c] | | eccentricityes: | 0.9[M08c] | | normalized ang. mom.αL: | 1.07[M09a] |
orbital data, third component: | semimajor axisas: | 20 km[M08a] | | separation/primary radiusas/rp: | 10 [*D] | | separation/Hill radiusas/rH: | 0.015 [*D] | | orbital periodPs: | 1.391± 0.00004d [P11b] | | eccentricityes: | ? | | normalized ang. mom.αL: | ? |
| other data, system (combined):| absolute mag.H: | 13.1[MPC] | | slope parameterG: | (0.15) [*A] | | effective diameterdE: | 4.66± 0.21 km [M11b] | | geometric albedo: | 0.355± 0.067[M11b] | | color indexU-B: | ? | | color indexB-V: | ? | | taxonomic type: | ? | | massm: | 5.1x1014 ± 2x1013kg [M08c] | | densityρ: | 2.6 g/cm3[M08c] | | Hill radiusrH: | 1300 km [*D] |
other data, primary: | diameterdp: | 3.95 km [*D] | | axial ratiosa/b, b/c: | 1.11, 1.2 [P14b] | | rotation periodRPp: | 2.80483± 0.00002h [M08a] | | amplitude in mag., rotationalΔM: | 0.13 [M08a] | | pole directionΒ, λ: | ?,? |
other data, S/2002 (3749) 1: | diameterds: | 1.84km [*D] | | diameter ratiods/dp: | 0.466 [M08c] | | component mag. differenceΔM: | 3.3 [M02d] | | rotation periodRPs: | ? | |
other data, third component: | diameterds: | 1.66km [*D] | | diameter ratiods/dp: | 0.42± 0.03 [P11b] | | component mag. differenceΔM: | 1.9± 0.2 [*D] | | rotation periodRPs: | ? | |
|
--(3749) Balam, S/2002 (3749) 1, and third component --discovery and notes:
Primary discovered1982 Jan 24from Anderson Mesa Station, Arizona, USAby E. Bowell.Alternate designation(s):1982 BG1, 1954 XM, 1962 ED, 1974 YO.Linked to prediscovery observations from 1954 Dec 06.Permanent number assigned 1988 Feb 02.
Named 1988 May 31 for David D. Balam [MPC13178].
Second component discovered2002 Feb 08 by W. J. Merline, L. M. Close, N. Siegler, C. Dumas, C. Chapman, F. Rigaut, F. Menard, W. M. Owen, and D. C. Slaterusingadaptive optics telescope observations from Gemini North Telescope, Mauna Kea, Hawaii, USA.Announced2002 Feb 13 [M02d].Provisional designation S/2002 (3749) 1.
Third component discovered2007 Jul 15 by F. Marchis, J. Pollock, P. Pravec, M. Baek, J. Greene, L. Hutton, P. Descamps, D. E. Reichart, K. M. Ivarsen, J. A. Crain, M. C. Nysewander, A. P. Lacluyze, J. B. Haislip, and J. S. Harveyusinglightcurve observations from Carl Sagan Center, SETI Institute; Appalachian State University, North Carolina, USA; Ondrejov Observatory, Czech Republic; Institut de Mecanique Celeste et de Calcul des Ephemerides; University of North Carolina at Chapel Hill, North Carolina, USA.Announced2008 Mar 12 [M08a].
--Links, more technical:
--Links, less technical:
--Links to ADS abstracts:
- Liu, Xiaodong, Baoyin, Hexi, Georgakarakos, Nikolaos, Donnison, John Richard, & Ma, Xingrui 2012, Monthly Notices of the Royal Astronomical SocietyThe Hill stability of triple minor planets in the Solar system
- Vachier, Frederic, Berthier, J., & Marchis, F. 2012, AAS/Division for Planetary Sciences Meeting AbstractsDetermination of Multiple Asteroid Orbits With a Genetic-Based Algorithm
- Vachier, F., Berthier, J., & Marchis, F. 2012, Astronomy and AstrophysicsDetermination of binary asteroid orbits with a genetic-based algorithm
- Marchis, F., Burns, K. J., Dankanich, J., Bellerose, J., & Grc-Compass Team 2011, Lunar and Planetary Science ConferenceDiversity: A Mission Concept for a Grand Tour of Multiple Asteroid Systems
- Polishook, D., Brosch, N., & Prialnik, D. 2011, IcarusRotation periods of binary asteroids with large separations - Confronting the Escaping Ejecta Binaries model with observations
- Descamps, P., Marchis, F., Berthier, J., Emery, J. P., Duchêne, G., de Pater, I., Wong, M. H., Lim, L., Hammel, H. B., Vachier, F., Wiggins, P., Teng-Chuen-Yu, J.-P., Peyrot, A., Pollock, J., Assafin, M., Vieira-Martins, R., Camargo, J. I. B., Braga-Ribas, F., & Macomber, B. 2011, IcarusTriplicity and physical characteristics of Asteroid (216) Kleopatra
- 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
- Vokrouhlický, David 2009, The Astrophysical Journal(3749) Balam: A Very Young Multiple Asteroid System
- Marchis, F., Descamps, P., Berthier, J., Hestroffer, D., Vachier, F., Baek, M., Harris, A. W., & Nesvorný, D. 2008, IcarusMain belt binary asteroidal systems with eccentric mutual orbits
- Marchis, F., Pollock, J., Pravec, P., Baek, M., Greene, J., Hutton, L., Descamps, P., Reichart, D. E., Ivarsen, K. M., Crain, J. A., Nysewander, M. C., Lacluyze, A. P., Haislip, J. B., & Harvey, J. S. 2008, International Astronomical Union Circular(3749) Balam
- Marchis, F., Pollock, J., Pravec, P., Baek, M., Greene, J., Hutton, L., Descamps, P., Reichart, D. E., Ivarsen, K. M., Crain, J. A., Nysewander, M. C., Lacluyze, A. P., Haislip, J. B., & Harvey, J. S. 2008, Central Bureau Electronic Telegrams(3749) Balam
- Merline, W. J., Close, L. M., Dumas, C., Chapman, C. R., Menard, F., Tamblyn, P. M., & Durda, D. D. 2003, Bulletin of the American Astronomical SocietyDiscovery of new asteroid binaries (121) Hermione and (1509) Esclangona
- Merline, W. J., Close, L. M., Siegler, N., Dumas, C., Chapman, C. R., Rigaut, F., Menard, F., Owen, W. M., Slater, D. C., & Durda, D. D. 2002, Bulletin of the American Astronomical SocietyDiscovery of a Loosely-bound Companion to Main-belt Asteroid (3749) Balam
- Merline, W. J., Close, L. M., Siegler, N., Dumas, C., Chapman, C., Rigaut, F., Menard, F., Owen, W. M., & Slater, D. C. 2002, International Astronomical Union CircularS/2002 (3749) 1
©2002-2009, 2014by Wm. Robert Johnston.
Last modified21 September 2014.Return toHome. Return toAstronomy and Space. Return toAsteroids with Satellites.
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