S-CLASS NEA AND MBA SC/OC RANKING
Last modified: 2006 June 19
This list includes the ratios reported in the peer-reviewed
literature and those that have been submitted but have not
yet been accepted for publication.
In the list below, near-Earth asteroids are highlighted in bold.
Rank Asteroid SC/OC +/- Obs Reference
---- -------- ----- --- --- ---------
1 6 Hebe 0.00 0.12 A Magri et al. 1999
192 Nausikaa 0.00 0.11 A Magri et al. 1999
230 Athamantis 0.00 0.12 A Magri et al. 1999
4 33 Polyhymnia 0.07 0.11 A Magri et al. 1999
5 9 Metis 0.14 0.04 A Mitchell et al. 1995
12 Victoria 0.14 0.03 A Mitchell et al. 1995
7 1685 Toro 0.15 0.05 A Ostro et al. 1983
8 8 Flora 0.16 0.05 A Magri et al. 1999
9 7 Iris 0.18 0.10 G Mitchell et al. 1995
1036 Ganymed 0.18 0.06 A Ostro et al. 1991
11 5 Astraea 0.20 0.03 A Magri et al. 1999
12 1620 Geographos 0.205 0.01 G Ostro et al. 1996
13 1627 Ivar 0.21 0.01 A Ostro et al. 1990a
14 6489 Golevka 0.23 0.02 G Hudson et al. 2000
15 80 Sappho 0.25 0.05 A Magri et al. 1999
16 25143 Itokawa 0.26 0.04 A & G Ostro et al. 2004
16 1915 Quetzalcoatl 0.27 0.08 A Ostro et al. 1991
3757 1982 XB 0.27 0.05 A Ostro et al. 1991
18 433 Eros 0.275 0.06 A & G Ostro et al. 1991
19 20 Massalia 0.28 0.07 A Magri et al. 1999
7822 1991 CS 0.28 0.001 G Benner et al. 1999
21 4179 Toutatis 0.29 0.01 G Ostro et al. 1999
22 18 Melpomene 0.30 0.10 G Magri et al. 1999
22 52760 1998 ML14 0.30 0.03 G & A Ostro et al. 2001
23 4769 Castalia 0.305 0.02 A & G Ostro et al. 1990b
24 1866 Sisyphus 0.32 0.04 A Ostro et al. 1991
24 10115 1992 SK 0.34 0.05 G Busch et al. 2006
25 27 Euterpe 0.34 0.08 A Magri et al. 1999
26 532 Herculina 0.37 0.15 A Magri et al. 1999
27 2062 Aten 0.39 0.06 G Benner et al. 1997
27 66391 1999 KW4 beta 0.45 0.10 G & A Ostro et al. in preparation
27 66391 1999 KW4 alpha 0.45 0.10 G & A Ostro et al. in preparation
28 3199 Nefertiti 0.47 0.04 A Ostro et al. 1991
29 1566 Icarus 0.5 0.2 G Mahapatra et al. 1999
30 1981 Midas 0.65 0.13 A & G Ostro et al. 1991
SC/OC includes some objects observed at both A and G and possibly at more
than one apparition at either telescope. For objects observed more than
once, their SC/OC values were averaged, including objects detected at
both telescopes.
References
----------
Benner, L. A. M., S. J. Ostro, J. D. Giorgini, R. F. Jurgens, D. L. Mitchell, R. Rose,
K. D. Rosema, M. A. Slade, R. Winkler, D. K. Yeomans, D. B. Campbell, J. F.
Chandler, and I. I. Shapiro 1997. Radar detection of near-Earth asteroids 2062 Aten,
2101 Adonis, 3103 Eger, 4544 Xanthus, and 1992 QN. Icarus 130, 296-312.
Benner, L. A. M., S. J. Ostro, K. D. Rosema, J. D. Giorgini, D. Choate, R. F. Jurgens
R. Rose, M. A. Slade, M. L. Thomas, R. Winkler, and D. K. Yeomans. 1999a. Radar
observations of asteroid 7822 (1991 CS). Icarus 137, 247-259.
Busch, M. W., S. J. Ostro, L. A. M. Benner, J. D. Giorgini, R. F. Jurgens, R. Rose, C. Magri,
P. Pravec, D. J. Scheeres, and S. B. Broschart 2006. Radar and optical observations and
physical modeling of near-Earth asteroid 10115 (1992 SK). Icarus 181, 145-155.
Hudson, R. S., S. J. Ostro, R. F. Jurgens, K. D. Rosema, J. D. Giorgini, R. Winkler, R. Rose,
D. Choate, R. A. Cormier, C. R. Franck, R. Frye, D. Howard, D. Kelley, R. Littlefair,
M. A. Slade, L. A. M. Benner, M. L. Thomas, D. L. Mitchell, P. W. Chodas, D. K. Yeomans,
D. J. Scheeres, P. Palmer, A. Zaitsev, Y. Koyama, A. Nakamura, A. W. Harris, and M. N.
Meshkov 2000. Radar observations and physical model of asteroid 6489 Golevka. Icarus,
in press.
Magri, C., S. J. Ostro, K. D. Rosema, M. L. Thomas, D. L. Mitchell, D. B. Campbell, J. F.
Chandler, I. I. Shapiro, J. D. Giorgini, and D. K. Yeomans. Mainbelt asteorids:
Results of Arecibo and Goldstone radar observations of 37 objects during 1980-1995.
Icarus 140, 379-407.
Mahapatra, P. R., S. J. Ostro, L. A. M. Benner, K. D. Rosema, R. F. Jurgens, R. Winkler, R.
Rose, J. D. Giorgini, D. K. Yeomans, and M. A. Slade 1999. Recent radar observations of
asteroid 1566 Icarus. Planetary and Space Science 47, 987-995.
Mitchell, D. L., S. J. Ostro, K. D. Rosema, R. S. Hudson, D. B. Campbell, J. F. Chandler,
and I. I. Shapiro 1995. Radar observations of asteroids 7 Iris, 9 Metis, 12 Victoria,
216 Kleopatra, and 654 Zelinda. Icarus 118, 105-131.
Ostro, S. J., D. B. Campbell, and I. I. Shapiro 1983. Radar observations of asteroid
1685 Toro. Astron. J. 88, 565-576.
Ostro, S. J., D. B. Campbell, A. A. Hine, I. I. Shapiro, J. F. Chandler, C. L. Werner,
and K. D. Rosema 1990a. Radar images of asteroid 1627 Ivar. Astron. J. 99, 2012-2018.
Ostro, S. J., J. F. Chandler, A. A. Hine, I. I. Shapiro, K. D. Rosema, and D. K. Yeomans.
1990b. Radar images of asteroid 1989 PB. Science 248, 1523-1528.
Ostro, S. J. D. B. Campbell, J. F. Chandler, I. I. Shapiro, A. A. Hine, R. Velez, R. F. Jurgens,
K. D. Rosema, R. Winkler, and D. K. Yeomans 1991. Asteroid radar astrometry. Astron. J.
102, 1490-1502.
Ostro, S. J., R. F. Jurgens, K. D. Rosema, R. S. Hudson, J. D. Giorgini, R. Winkler, D. K.
Yeomans, D. Choate, R. Rose, M. A. Slade, S. D. Howard, D. J. Scheeres, and D. L.
Mitchell 1996. Radar observations of asteroid 1620 Geographos. Icarus 121, 46-66.
Ostro, S. J., R. S. Hudson, K. D. Rosema, J. D. Giorgini, R. F. Jurgens, D. K. Yeomans, P. W.
Chodas, R. Winkler, R. Rose, D. Choate, R. A. Cormier, D. Kelley, R. Littlefair, L. A. M.
Benner, M. L. Thomas, and M. A. Slade 1999. Asteroid 4179 Toutatis: 1996 radar observations.
Icarus 137, 122-139.
Ostro, S. J., R. S. Hudson, L. A. M. Benner, M. C. Nolan, J. D. Giorgini, D. J. Scheeres, R. F.
Jurgens, and R. Rose 2001. Radar observations of asteroid 1998 ML14. Meteoritics and
Planetary Science 36, 1225-1236.
Ostro, S. J., L. A. M. Benner, M. C. Nolan, C. Magri, J. D. Giorgini, D. J. Scheeres, S. B. Broschart,
M. Kaasalainen, D. Vokrouhlicky, S. R. Chesley, J. L. Margot, R. F. Jurgens, R. Rose, D. K.
Yeomans, S. Suzuki, and E. M. De Jong 2004. Radar observations of asteroid 25143 Itokawa
(1998 SF36). Meteoritics and Planetary Science 39, 407-424.