(153591) 2001 SN263, "Beta", and "Gamma"

Asteroids with Satellites Database--Johnston's Archive

(153591) 2001 SN263, "Beta", and "Gamma"

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: NEA, Amor
orbital data, primary (osculating elements) [JPL] :
semimajor axis a: 1.986951527 AU
orbital period P: 2.800845229 yr
(= 1023.008720 d)
eccentricity e: 0.478406719
perihelion distance q: 1.036380566 AU
aphelion distance Q: 2.937522489 AU
inclination i: 6.6857566°
argument of perihelion ω: 172.8285743°
ascending node Ω: 325.8353797°
mean anomaly M: 86.287743°
perihelion passage T_P: 2013 Sep 19.79690
Epoch: 2014 May 23
data arc: 1990-2010 (726 obs.)
Earth MOID: 0.0506095 AU
Jupiter Tisserand invariant T_J: 3.697

orbital data, "Beta":

semimajor axis a_s: 16.633 ± 0.163 km [F11a]
separation/primary radius a_s/r_p: 13 [*D]
separation/Hill radius a_s/r_H: 0.092 [*D]
orbital period P_s: 6.225 ± 0.0953 d [F11a]
eccentricity e_s: 0.015 ± 0.009 [F11a]
inclination i_s: 157.486° ± 1.819° [F11a]
ascending node Ω_s: 161.144° ± 13.055° [F11a]
argument of pericenter ω_s: 131.249° ± 21.918° [F11a]
mean anomaly M: 212.658° ± 10.691° [F11a]
Epoch: 2008 Feb 13.0
normalized ang. mom. α_L: ?
orbital data, "Gamma":

semimajor axis a_s: 3.804 ± 0.002 km [F11a]
separation/primary radius a_s/r_p: 2.9 [*D]
separation/Hill radius a_s/r_H: 0.021 [*D]
orbital period P_s: 0.686 ± 0.00159 d [F11a]
eccentricity e_s: 0.016 ± 0.002 [F11a]
inclination i_s: 165.045° ± 12.409° [F11a]
ascending node Ω_s: 198.689° ± 61.292° [F11a]
argument of pericenter ω_s: 292.435° ± 53.481° [F11a]
mean anomaly M: 248.816° ± 11.509° [F11a]
Epoch: 2008 Feb 13.0
normalized ang. mom. α_L: ?
other data, system (combined):

absolute mag. H: 16.9 [MPC]
16.861 ± 0.805 [JPL]
slope parameter G: (0.15) [*A]
effective diameter d_E: 2.85 km [*D]
geometric albedo: 0.04 [N08a]
color index U-B: ?
color index B-V: ?
taxonomic type: ?
mass m: 9.51x10¹² ± 1.3x10¹¹ kg [F11a]
density ρ: 0.85 ± 0.15 g/cm³[N08a]
Hill radius r_H: 180 km [*D]
other data, primary:

diameter d_p: 2.6 km [F12a]
rotation period RP_p: 3.4250 ± 0.0002 h [H08a]
amplitude in mag., rotational ΔM: 0.15 ± 0.02 [H08b]
amplitude in mag., mutual events ΔM: 0.27 ±0.07 [H08b]
pole direction Β, λ: ? , ?

other data, "Beta":

diameter d_s: 1.06 km [F12a]
diameter ratio d_s/d_p: 0.408 [*D]
component mag. difference ΔM: 1.9 [* D]
rotation period RP_s: ?

other data, "Gamma":

diameter d_s: 0.46 km [F12a]
diameter ratio d_s/d_p: 0.177 [*D]
component mag. difference ΔM: 3.8 [* D]
rotation period RP_s: ?

-- (153591) 2001 SN263, "Beta", and "Gamma" --discovery and notes:

Primary discovered 2001 Sep 20 from Socorro, New Mexico, USA by LINEAR. Linked to prediscovery observations from 1990 Sep 25. Permanent number assigned 2007 Apr 02.

Companion "Beta" discovered 2008 Feb 12 by M. C. Nolan, E. S. Howell, L. A. M. Benner, S. J. Ostro, J. D. Giorgini, M. W. Busch, L. M. Carter, R. F. Anderson, C. Magri, D. B. Campbell, J. L. Margot, and R. Vervack using radar observations from Arecibo Observatory, Puerto Rico. Announced 2008 Feb 12 [N08e].

Companion "Gamma" discovered 2008 Feb 12 by M. C. Nolan, E. S. Howell, L. A. M. Benner, S. J. Ostro, J. D. Giorgini, M. W. Busch, L. M. Carter, R. F. Anderson, C. Magri, D. B. Campbell, J. L. Margot, and R. Vervack using radar observations from Arecibo Observatory, Puerto Rico. Announced 2008 Feb 12 [N08e].

--Links, more technical:

--Links, less technical:

--Links to ADS abstracts:

Fang, Julia A. 2013, Ph.D. Thesis Orbital Structure of Multi-Asteroid and Multi-Planet Systems
Araujo, R. A. N., Winter, O. C., Prado, A. F. B. A., & Sukhanov, A. 2012, Monthly Notices of the Royal Astronomical Society Stability regions around the components of the triple system 2001 SN263
Winter, O. C., Macau, E. E. N., de Campos Velho, H., & Carruba, V. 2012, LPI Contributions ASTER: A Brazilian Mission to an Asteroid.
Fang, Julia & Margot, J. 2012, AAS/Division of Dynamical Astronomy Meeting Dynamical Architecture of Multi-Component Systems
Betzler, Alberto Silva, Novaes, Alberto Brum, Santos, Antonio Carlos P., Sobral, Edvaldo Gonçalves, Dutra, Glenon, França, Lucas, Almeida, Anderson, Santos, Isaac Silva, Barros, Lucas Guimarães, Augusto, Yulo, Schettini, Poliana, Lima, Isaias, Cardoso, Gerlan, Freire, Marcus Elias Silva, Vieira, Thaís Ribeiro, & Cerqueira, Welington 2012, Minor Planet Bulletin Photometric Observations of 596 Scheila, 1990 BG, 1990 TG1, 1999 CU3, 2000 DM8, 2001 PT9, 2001 SN263, 2002 NP1, 2002 JP9, 2003 UV11, 2006 AL8, 2008 SR1, 2009 BH81, 2009 QC, P/2010 A2 (LINEAR), 2010 JK33, 2010 LY63, 2010 RF12, 2010 UD, P/2010 R2 (La Sagra), 2010 YS, 2011 AN16, and 2011 EZ78
Fang, Julia & Margot, Jean-Luc 2012, The Astronomical Journal Near-Earth Binaries and Triples: Origin and Evolution of Spin-Orbital Properties
Brozović, Marina, Benner, Lance A. M., Taylor, Patrick A., Nolan, Michael C., Howell, Ellen S., Magri, Christopher, Scheeres, Daniel J., Giorgini, Jon D., Pollock, Joseph T., Pravec, Petr, Galád, Adrián, Fang, Julia, Margot, Jean-Luc, Busch, Michael W., Shepard, Michael K., Reichart, Daniel E., Ivarsen, Kevin M., Haislip, Joshua B., LaCluyze, Aaron P., Jao, Joseph, Slade, Martin A., Lawrence, Kenneth J., & Hicks, Michael D. 2011, Icarus Radar and optical observations and physical modeling of triple near-Earth Asteroid (136617) 1994 CC
Hetem, A., Mourão, D., de Brum, A. G. V., Rêgo, I. S., Fenili, A., Foryta, D., Madeira, F., de Lima, C. R., Winter, O., Sfair, R., Figuerêdo, E., & Penteado, P. F. 2011, Revista Mexicana de Astronomia y Astrofisica Conference Series A Near-Infrared Spectrometer project design for the Aster Mission
Fang, Julia, Margot, Jean-Luc, Brozovic, Marina, Nolan, Michael C., Benner, Lance A. M., & Taylor, Patrick A. 2011, The Astronomical Journal Orbits of Near-Earth Asteroid Triples 2001 SN263 and 1994 CC: Properties, Origin, and Evolution
Burns, Keaton, Marchis, F., & Bellerose, J. 2011, Bulletin of the American Astronomical Society Orbital Stability of Spacecraft Exploring Multiple Asteroid Systems
Jones, T., Lee, P., Bellerose, J., Fahnestock, E., Farquhar, R., Gaffey, M., Heldmann, J., Lawrence, D., Nolan, M., Prettyman, T., Smith, P., Thomas, P., Veverka, J., Benedix, G., Elphic, R., Gellert, R., Hildebrand, A., Yano, H., Bhavsar, P., Chartres, J., Cox, A., Debus, T., de Rosee, R., Dunham, D., Fleischner, R., Goldsten, J., Horsewood, J., Mayer, D., McCarthy, J., McCarthy, T., Mungas, G., Osterman, D., Sanchez, H., & Williams, B. 2011, Lunar and Planetary Science Conference Amor: A Lander Mission to Explore the C-Type Triple Near-Earth Asteroid system 2001 SN263
Delbo, Marco, Walsh, Kevin, Mueller, Michael, Harris, Alan W., & Howell, Ellen S. 2011, Icarus The cool surfaces of binary near-Earth asteroids
Fang, Julia & Margot, J. 2011, Bulletin of the American Astronomical Society Orbits and Masses of Near-Earth Triples 2001 SN263 and 1994 CC
Brozovic, Marina, Benner, L. A. M., Nolan, M. C., Howell, E. S., Magri, C., Giorgini, J. D., Taylor, P. A., Margot, J. L., Busch, M. W., Shepard, M. K., Scheeres, D. J., & Carter, L. M. 2010, Bulletin of the American Astronomical Society Radar Images And Shape Model Of A Triple Asteroid (136617) 1994CC
Jones, T., Bellerose, Julie, Lee, P., Prettyman, T., Lawrence, D., Smith, P., Gaffey, M., Nolan, M., Goldsten, J., Thomas, P., Veverka, J., Farquhar, R., Heldmann, J., Reddy, V., Williams, B., Chartres, J., DeRosee, R., & Dunham, D. 2010, AAS/Division for Planetary Sciences Meeting Abstracts #42 Amor: Investigating The Triple Asteroid System 2001 SN263
Winter, Othon, Araujo, Rosana A. N., Prado, Antonio, & Sukhanov, Alexander 2010, 38th COSPAR Scientific Assembly Stability Regions for a Mission around the Triple Asteroid 2001 SN263
Araujo, Rosana, Winter, O. C., Sukhanov, A., & Prado, A. F. B. 2009, AAS/Division for Planetary Sciences Meeting Abstracts #41 A Study of the Orbital Dynamics of and Around the Asteroid 2001 SN263
Oey, Julian 2009, Minor Planet Bulletin Lightcurve Analysis of Asteroids from Leura and Kingsgrove Observatories in the First Half of 2008
Becker, Tracy Michelle, Nolan, M., Howell, E., & Magri, C. 2009, Bulletin of the American Astronomical Society Physical Modeling of Triple Near-Earth Asteroid 153591 (2001 SN263)
Betzler, Alberto Silva, Novaes, Alberto Brum, & Celedon, Julian Hermogenes Quesada 2008, Minor Planet Bulletin A Study of the Trinary NEA 2001 SN263
Fahnestock, Eugene G. & Scheeres, D. J. 2008, Bulletin of the American Astronomical Society Primary Surface Particle Motion as a Mechanism for YORP-Driven Binary Asteroid Evolution
Somers, James M., Hicks, M. D., & Lawrence, K. J. 2008, Bulletin of the American Astronomical Society Optical Characterization of Planetary Radar Targets
Becker, Tracy, Howell, E. S., Nolan, M. C., & Magri, C. 2008, Bulletin of the American Astronomical Society Physical Modeling of Triple Near-Earth Asteroid 153591 (2001 SN263)
Howell, Ellen S., Magri, C., Vervack, R. J., Nolan, M. C., Fernandez, Y., & Rivkin, A. S. 2008, Bulletin of the American Astronomical Society Thermal Infrared Observations of Several Near-Earth Asteroids
Nolan, Michael C., Howell, E. S., Becker, T. M., Magri, C., Giorgini, J. D., & Margot, J. L. 2008, Bulletin of the American Astronomical Society Arecibo Radar Observations of 2001 SN<SUB>263</SUB>: A Near-Earth Triple Asteroid System
Pilcher, Frederick 2008, Minor Planet Bulletin Minor Planets at Unusually Favorable Elongations in 2008
Nolan, M. C., Howell, E. S., Benner, L. A. M., Ostro, S. J., Giorgini, J. D., Busch, M. W., Carter, L. M., Anderson, R. F., Magri, C., Campbell, D. B., Margot, J. L., Vervack, R. J., Jr., & Shepard, M. K. 2008, International Astronomical Union Circular (153591) 2001 SN_263
Nolan, M. C., Howell, E. S., Benner, L. A. M., Ostro, S. J., Giorgini, J. D., Busch, M. W., Carter, L. M., Anderson, R. F., Magri, C., Campbell, D. B., Margot, J. L., & Vervack, R. 2008, Central Bureau Electronic Telegrams (153591) 2001 SN_263
Nolan, M. C., Howell, E. S., Benner, L. A. M., Ostro, S. J., Giorgini, J. D., Busch, M. W., Carter, L. M., Anderson, R. F., Magri, C., Campbell, D. B., Margot, J. L., Vervack, R. J., & Shepard, M. K. 2008, LPI Contributions Arecibo Radar Imaging of 2001 SN263: A Near-Earth Triple Asteroid System
Reddy, V., Gaffey, M. J., Schaal, M., & Takir, D. 2008, LPI Contributions Physical Characterization of First Triplet Near-Earth Asteroid (153591) 2001 SN263
Stoss, R. & Spahr, T. B. 2002, Minor Planet Electronic Circulars 2001 SN263
Ticha, J., Tichy, M., Moravec, Z., Balam, D. D., Blythe, M., Shelly, F., Bezpalko, M., Huber, R., Manguso, L., Adams, S., Stuart, J., Sayer, R., Evans, J. B., Viggh, H., Ries, J. G., & Spahr, T. B. 2001, Minor Planet Electronic Circulars 2001 SN263

© 2008-2012, 2014 by Wm. Robert Johnston.
Last modified 21 September 2014.
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