PHYSICAL CHARACTERIZATION AND ORIGIN OF BINARY NEAR-EARTH ASTEROID (175706) 1996 FG
The near-Earth asteroid (NEA) (175706) 1996 FG[subscript 3] is a particularly interesting spacecraft target: a binary asteroid with a low-Δv heliocentric orbit. The orbit of its satellite has provided valuable information about its mass density while its albedo and colors suggest it is primitive or...
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Institute of Physics/American Astronomical Society
2015
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| Online Access: | http://hdl.handle.net/1721.1/95417 |
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| author | Walsh, Kevin J. Delbo’, Marco Mueller, Michael Binzel, Richard P DeMeo, Francesca E |
| author2 | Massachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciences |
| author_facet | Massachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciences Walsh, Kevin J. Delbo’, Marco Mueller, Michael Binzel, Richard P DeMeo, Francesca E |
| author_sort | Walsh, Kevin J. |
| collection | MIT |
| description | The near-Earth asteroid (NEA) (175706) 1996 FG[subscript 3] is a particularly interesting spacecraft target: a binary asteroid with a low-Δv heliocentric orbit. The orbit of its satellite has provided valuable information about its mass density while its albedo and colors suggest it is primitive or part of the C-complex taxonomic grouping. We extend the physical characterization of this object with new observations of its emission at mid-infrared wavelengths and with near-infrared reflection spectroscopy. We derive an area-equivalent system diameter of 1.90 ± 0.28 km (corresponding to approximate component diameters of 1.83 km and 0.51 km, respectively) and a geometric albedo of 0.039 ± 0.012. (175706) 1996 FG[subscript 3] was previously classified as a C-type asteroid, though the combined 0.4-2.5 μm spectrum with thermal correction indicates classification as B-type; both are consistent with the low measured albedo. Dynamical studies show that (175706) 1996 FG[subscript 3] most probably originated in the inner main asteroid belt. Recent work has suggested the inner Main Belt (142) Polana family as the possible origin of another low-Δv B-type NEA, (101955) 1999 RQ[subscript 36]. A similar origin for (175706) 1996 FG[subscript 3] would require delivery by the overlapping Jupiter 7:2 and Mars 5:9 mean motion resonances rather than the ν[subscript 6], and we find this to be a low probability, but possible, origin. |
| first_indexed | 2024-09-23T15:58:48Z |
| format | Article |
| id | mit-1721.1/95417 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T15:58:48Z |
| publishDate | 2015 |
| publisher | Institute of Physics/American Astronomical Society |
| record_format | dspace |
| spelling | mit-1721.1/954172024-05-15T02:49:59Z PHYSICAL CHARACTERIZATION AND ORIGIN OF BINARY NEAR-EARTH ASTEROID (175706) 1996 FG Walsh, Kevin J. Delbo’, Marco Mueller, Michael Binzel, Richard P DeMeo, Francesca E Massachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciences Binzel, Richard P. DeMeo, Francesca E. The near-Earth asteroid (NEA) (175706) 1996 FG[subscript 3] is a particularly interesting spacecraft target: a binary asteroid with a low-Δv heliocentric orbit. The orbit of its satellite has provided valuable information about its mass density while its albedo and colors suggest it is primitive or part of the C-complex taxonomic grouping. We extend the physical characterization of this object with new observations of its emission at mid-infrared wavelengths and with near-infrared reflection spectroscopy. We derive an area-equivalent system diameter of 1.90 ± 0.28 km (corresponding to approximate component diameters of 1.83 km and 0.51 km, respectively) and a geometric albedo of 0.039 ± 0.012. (175706) 1996 FG[subscript 3] was previously classified as a C-type asteroid, though the combined 0.4-2.5 μm spectrum with thermal correction indicates classification as B-type; both are consistent with the low measured albedo. Dynamical studies show that (175706) 1996 FG[subscript 3] most probably originated in the inner main asteroid belt. Recent work has suggested the inner Main Belt (142) Polana family as the possible origin of another low-Δv B-type NEA, (101955) 1999 RQ[subscript 36]. A similar origin for (175706) 1996 FG[subscript 3] would require delivery by the overlapping Jupiter 7:2 and Mars 5:9 mean motion resonances rather than the ν[subscript 6], and we find this to be a low probability, but possible, origin. National Science Foundation (U.S.) (NSF Grant No. 0506716) United States. National Aeronautics and Space Administration (NASA Outer Planets Research program) 2015-02-19T20:09:51Z 2015-02-19T20:09:51Z 2012-04 2011-06 Article http://purl.org/eprint/type/JournalArticle 0004-637X 1538-4357 http://hdl.handle.net/1721.1/95417 Walsh, Kevin J., Marco Delbo’, Michael Mueller, Richard P. Binzel, and Francesca E. DeMeo. “ PHYSICAL CHARACTERIZATION AND ORIGIN OF BINARY NEAR-EARTH ASTEROID (175706) 1996 FG 3 .” The Astrophysical Journal 748, no. 2 (March 13, 2012): 104. © 2012 American Meteorological Society. en_US http://dx.doi.org/10.1088/0004-637x/748/2/104 Astrophysical Journal Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf Institute of Physics/American Astronomical Society American Astronomical Society |
| spellingShingle | Walsh, Kevin J. Delbo’, Marco Mueller, Michael Binzel, Richard P DeMeo, Francesca E PHYSICAL CHARACTERIZATION AND ORIGIN OF BINARY NEAR-EARTH ASTEROID (175706) 1996 FG |
| title | PHYSICAL CHARACTERIZATION AND ORIGIN OF BINARY NEAR-EARTH ASTEROID (175706) 1996 FG |
| title_full | PHYSICAL CHARACTERIZATION AND ORIGIN OF BINARY NEAR-EARTH ASTEROID (175706) 1996 FG |
| title_fullStr | PHYSICAL CHARACTERIZATION AND ORIGIN OF BINARY NEAR-EARTH ASTEROID (175706) 1996 FG |
| title_full_unstemmed | PHYSICAL CHARACTERIZATION AND ORIGIN OF BINARY NEAR-EARTH ASTEROID (175706) 1996 FG |
| title_short | PHYSICAL CHARACTERIZATION AND ORIGIN OF BINARY NEAR-EARTH ASTEROID (175706) 1996 FG |
| title_sort | physical characterization and origin of binary near earth asteroid 175706 1996 fg |
| url | http://hdl.handle.net/1721.1/95417 |
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