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76 Freia
Classification: Outer Main-belt Asteroid          SPK-ID: 2000076
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1658926980226344 3.3947e-08  
a 3.412478188128588 1.2155e-08 au
q 2.846372974556546 1.1608e-07 au
i 2.121218217233081 3.6585e-06 deg
node 204.3015015449439 0.00011331 deg
peri 252.7903143982322 0.00011375 deg
M 95.96257308200697 1.2003e-05 deg
tp 2456786.734268585531
(2014-May-09.23426859)
7.5156e-05 JED
period 2302.519161510877
6.30
1.2302e-05
3.368e-08
d
yr
n .1563504903749741 8.3537e-10 deg/d
Q 3.978583401700631 1.4171e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1977  
   data-arc span      55252 days (151.27 yr)  
   first obs. used      1864-04-23  
   last obs. used      2015-08-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .62756  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Oct-05 13:01:59  

Additional Information
 Earth MOID = 1.86381 au 
 Jupiter MOID = 1.22418 au 
 T_jup = 3.121 
[ 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 7.90 mag n/a IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 15
diameter diameter 183.66 km 4.0 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 15
rotation period rot_per 9.973 h n/a LCDB (Rev. 2015-December); Warner et al., 2009 Published Reference List:
[Harris, A.W.; Young, J.W. (1983) Icarus 54, 59-109.]
[Lagerkvist, C.-I.; Hahn, G.; Magnusson, P.; Rickman, H.; Hammarback, G. (1986) in Asteroids, Comets, Meteors II. C.-I. Lagerkvist, B.A. Lindblad, M. Lundstedt, H. Rickman, Uppsala, eds. pp. 67-72.]
[Harris, A.W.; Young, J.W.; Dockweiler, T.; Gibson, J.; et al. (1992) Icarus 95, 115-147.]
[Armstrong, J.C.; Nellermoe, B.L.; Reitzler, L.E. (1996) I.A.P.P.P. Comm. 63, 59-68.]
[Shevchenko, V.G.; Chiorny, V.G.; Gaftonyuk, N.M.; Krugly, Yu.N.; et al. (2005) Abstr. IAU Symp. 229, p. 133.]
[Shevchenko, V.G.; Chiorny, V.G.; Gaftonyuk, M.; Krugly, Y.N.; et al. (2008) Icarus 196, 601-611.]
[Stephens, R.D.; Warner, B.D. (2008) Minor Planet Bul. 35, 84-85.]
[Behrend, R. (2009) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Behrend, R. (2014) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Hanus, J.; Durech, J.; Oszkiewicz, D.A.; Behrend, R.; et al. (2015) Astron. Astrophys., in press.arXiv:1510.07422]
geometric albedo albedo 0.0362   0.002 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 15
B-V BV .704 mag .013 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=11; phase (min.=.55, mean=10.43, max.=16.49) deg.
U-B UB .298 mag .047 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=11; phase (min.=.55, mean=11.26, max.=20.23) deg.
Tholen spectral type spec_T P   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)

76 Freia          Discovered 1862-Oct-21 by D'Arrest, H. at Copenhagen
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 A911 OB 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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