Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
6.45 |
mag |
n/a |
IRAS-A-FPA-3-RDR-IMPS-V6.0 |
IRAS observations used: 11 |
| magnitude slope |
G |
0.21 |
|
n/a |
PDS3 (MPC 17257) |
Fit |
| diameter |
diameter |
181.00 |
km |
4.6 |
IRAS-A-FPA-3-RDR-IMPS-V6.0 |
IRAS observations used: 11 |
| GM |
GM |
0.491 |
km^3/s^2 |
0.05 |
Margot & Brown, Science 300, 1939-1942 (2003) |
Low density M-type (chondritic) confirmed as binary system in 2001. |
| bulk density |
density |
2.37 |
g/cm^3 |
0.4 |
Margot & Brown, Science 300, 1939-1942 (2003) |
|
| rotation period |
rot_per |
4.148 |
h |
n/a |
Asteroid Lightcurve DataBase (Rev. 2013-May-01) |
Published Reference List:
[Ahmad, I.I. (1954) Astrophys. J. 120, 551-560.]
[Gehrels, T.; Owings, D. (1962) Astrophys. J. 135, 906-924.]
[Scaltriti, F.; Zappala, V.; Stanzel, R. (1978) Icarus 34, 93-98.]
[Zappala, V.; van Houten-Groeneveld, I. (1979) Icarus 40, 289-296.]
[Lupishko, D.F.; Bel'skaya, I.N.; Tupieva, F.A.; Chernova, G.P. (1982) Astron. Vestn. 16, 101-108; Solar System Res. 16, 75-80.]
[Magnusson, P. (1986) Icarus 68, 1-39.]
[Weidenschilling, S.J.; Chapman, C.R.; Davis, D.R.; Greenberg, R.; et al. (1987) Icarus 70, 191-245.]
[Drummond, J.D.; Weidenschilling, S.J.; Chapman, C.R.; Davis, D.R. (1988) Icarus 76, 19-77.]
[Magnusson, P. (1990) Icarus 85, 229-240.]
[Michalowski, T.; Velichko, F.P. (1990) Acta Astronomica 40, 321-332.]
[Drummond, J.D.; Weidenschilling, S.J.; Chapman, C.R.; Davis, D.R. (1991) Icarus 89, 44-64.]
[De Angelis, G. (1992) in Physical properties of small solar system bodies. A. Brahic, J.-C. Gerard, J. Surdej, eds. Universite de Liege, Institut d'Astrophysique, Liege, pp. 195-201.]
[De Angelis, G. (1995) Planet. Space Sci. 43, 649-682.]
[Piironen, J.; Magnusson, P.; Lagerkvist, C.-I.; Williams, I.P.; et al. (1997) Astron. Astrophys. Suppl. Ser. 121, 489-497.]
[Kaasalainen, M.; Torppa, J.; Piironen, J. (2002) Icarus 159, 369-395.]
[Trigo-Rodriquez, J.M.; Caso, A.S. (2003) Minor Planet Bul. 30, 26-27.]
[Behrend, R. (2004) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Behrend, R. (2006) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Alton, K.B. (2007) Minor Planet Bul. 34, 56.]
[Gungor, C. (2007) Minor Planet Bul. 34, 53.]
[Warner, B.D. (2007) Minor Planet Bul. 34, 72-77.]
[Behrend, R. (2007) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Durech, J.; Kaasalainen, M.; Herald, D.; Dunham, D.; et al. (2011) Icarus 214, 652-670.]
[Proyecto ECLA (Silvia Alonso Perez) (2011) http://www.geocities.com/proyectoecla/]
[Hamanowa, H.; Hamanowa, H. (2011) http://www2.ocn.ne.jp/~hamaten/astlcdata.htm]
[Behrend, R. (2012) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] |
| geometric albedo |
albedo |
0.1419 |
|
0.007 |
IRAS-A-FPA-3-RDR-IMPS-V6.0 |
IRAS observations used: 11 |
| B-V |
BV |
.715 |
mag |
.023 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 |
#obs=33; phase (min.=.44, mean=9.45, max.=21.85) deg. |
| U-B |
UB |
.234 |
mag |
.043 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 |
#obs=16; phase (min.=.44, mean=5.30, max.=11.85) deg. |
| Tholen spectral type |
spec_T |
M |
|
n/a |
EAR-A-5-DDR-TAXONOMY-V4.0 |
used 7 color indices; used ground-based radiometric albedo |
| SMASSII spectral type |
spec_B |
X |
|
n/a |
EAR-A-5-DDR-TAXONOMY-V4.0 |
based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002) |
|
