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22 Kalliope
Classification: Main-belt Asteroid          SPK-ID: 2000022
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 74 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09971790700860567 3.4299e-08  
a 2.910724504757972 6.6387e-09 AU
q 2.620473149264846 9.8598e-08 AU
i 13.71541054128113 3.834e-06 deg
node 66.0818874746067 1.1446e-05 deg
peri 354.8822253688937 1.7645e-05 deg
M 240.3455520325854 1.4784e-05 deg
tp 2457603.373822610542
(2016-Aug-02.87382261)
7.5388e-05 JED
period 1813.844615278322
4.97
6.2055e-06
1.699e-08
d
yr
n .1984734507948799 6.7901e-10 deg/d
Q 3.200975860251097 7.3007e-09 AU
  Orbit Determination Parameters
   # obs. used (total)      2227  
   data-arc span      58449 days (160.02 yr)  
   first obs. used      1854-04-14  
   last obs. used      2014-04-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53038  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-16 13:08:07  

Additional Information
 Earth MOID = 1.63341 AU 
 T_jup = 3.234 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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. 2014-Mar-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]
[Hanus, J.; Marchis, F.; Durech, J. (2013) Icarus 226, 1045-1057.]
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)

22 Kalliope          Discovered 1852-Nov-16 by Hind, J. R. at London
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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