Asteroids with Satellites Database--Johnston's Archive
(3749)
Balam,
S/2002 (3749) 1, and third component
compiled by Wm. Robert Johnston
last updated
21 September 2014
--Orbital and physical data--
(See this page for definitions of quantities; source codes in brackets, see this 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 axis a: |
2.236702937 AU
| |
orbital period P: |
3.345189033 yr
(= 1221.8302940 d)
| |
eccentricity e: |
0.109273190
| |
perihelion distance q: |
1.99229127 AU
| |
aphelion distance Q: |
2.481114602 AU
| |
inclination i: |
5.3823141°
| |
argument of perihelion ω: |
173.985299°
| |
ascending node Ω: |
295.740745°
| |
mean anomaly M: |
260.393938°
| |
perihelion passage TP: |
2015 Apr 26.0602
| |
Epoch: |
2014 May 23
| |
data arc: |
1954-2013
(1074 obs.)
| |
Earth MOID: |
1.00875 AU
| |
Jupiter Tisserand invariant TJ: |
3.624
|
orbital data, S/2002 (3749) 1:
|
binary dynamical type: | W [P07f] | |
semimajor axis as: |
289
± 13 km
[M08c]
| |
separation/primary radius as/rp: | 150 [*D] | |
separation/Hill radius as/rH: | 0.220 [*D] | |
orbital period Ps: |
61
± 11
d [M08c]
| |
eccentricity es: |
0.9
[M08c]
| |
normalized ang. mom. αL: |
1.07
[M09a]
|
orbital data, third component:
|
semimajor axis as: |
20
km
[M08a]
| |
separation/primary radius as/rp: | 10 [*D] | |
separation/Hill radius as/rH: | 0.015 [*D] | |
orbital period Ps: |
1.391
± 0.00004
d [P11b]
| |
eccentricity es: |
?
| |
normalized ang. mom. αL: |
?
|
|
other data, system (combined):
|
absolute mag. H: |
13.1
[MPC]
| |
slope parameter G: |
(0.15) [*A]
| |
effective diameter dE: |
4.66
± 0.21
km [M11b]
| |
geometric albedo: |
0.355
± 0.067
[M11b]
| |
color index U-B: |
?
| |
color index B-V: |
?
| |
taxonomic type: |
?
| |
mass m: |
5.1x1014
± 2x1013
kg [M08c]
| |
density ρ: |
2.6
g/cm3[M08c]
| |
Hill radius rH: |
1300 km [*D]
|
other data, primary:
|
diameter dp: |
3.95
km [*D]
| |
axial ratios a/b, b/c: | 1.11, 1.2 [P14b] | |
rotation period RPp: |
2.80483
± 0.00002
h [M08a]
| |
amplitude in mag., rotational ΔM: |
0.13
[M08a]
| |
pole direction Β, λ: |
?
,
?
|
other data, S/2002 (3749) 1:
|
diameter ds: |
1.84
km [*D]
| |
diameter ratio ds/dp: |
0.466
[M08c]
| |
component mag. difference ΔM: |
3.3
[M02d]
| |
rotation period RPs: |
?
| |
|
other data, third component:
|
diameter ds: |
1.66
km [*D]
| |
diameter ratio ds/dp: |
0.42
± 0.03
[P11b]
| |
component mag. difference ΔM: |
1.9
± 0.2
[*D]
| |
rotation period RPs: |
?
| |
|
|
--
(3749) Balam, S/2002 (3749) 1, and third component
--discovery and notes:
Primary discovered
1982 Jan 24
from
Anderson Mesa Station, Arizona, USA
by
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 discovered
2002 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. Slater
using
adaptive optics telescope
observations from Gemini North Telescope, Mauna Kea, Hawaii, USA.
Announced
2002 Feb 13 [M02d].
Provisional designation S/2002 (3749) 1.
Third component discovered
2007 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. Harvey
using
lightcurve
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.
Announced
2008 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 Society The Hill stability of triple minor planets in the Solar system
- Vachier, Frederic, Berthier, J., & Marchis, F. 2012, AAS/Division for Planetary Sciences Meeting Abstracts Determination of Multiple Asteroid Orbits With a Genetic-Based Algorithm
- Vachier, F., Berthier, J., & Marchis, F. 2012, Astronomy and Astrophysics Determination 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 Conference Diversity: A Mission Concept for a Grand Tour of Multiple Asteroid Systems
- Polishook, D., Brosch, N., & Prialnik, D. 2011, Icarus Rotation 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, Icarus Triplicity 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 Society Characteristics 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, Icarus Main 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 Society Discovery 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 Society Discovery 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 Circular S/2002 (3749) 1
©
2002-2009, 2014
by Wm. Robert Johnston.
Last modified
21 September 2014.
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