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79 Eurynome
Classification: Main-belt Asteroid          SPK-ID: 2000079
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 85 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1916458040328311 4.0704e-08  
a 2.444012663575754 3.9558e-09 AU
q 1.975627891598358 9.8931e-08 AU
i 4.617845020976342 4.9208e-06 deg
node 206.6336318195727 7.5125e-05 deg
peri 200.8779065564416 7.6751e-05 deg
M 125.0021310082752 1.7988e-05 deg
tp 2456315.916613441731
(2013-Jan-23.41661344)
6.9196e-05 JED
period 1395.576361409618
3.82
3.3882e-06
9.276e-09
d
yr
n .2579579376340094 6.2628e-10 deg/d
Q 2.912397435553151 4.7139e-09 AU
  Orbit Determination Parameters
   # obs. used (total)      1511  
   data-arc span      54971 days (150.50 yr)  
   first obs. used      1863-10-05  
   last obs. used      2014-04-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .64689  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Apr-17 13:34:08  

Additional Information
 Earth MOID = .984887 AU 
 T_jup = 3.470 
[ 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 7.96 mag n/a IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 12
magnitude slope G 0.25   n/a PDS3 (MPC 17257) Fit
diameter diameter 66.47 km 1.6 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 12
rotation period rot_per 5.978 h n/a Asteroid Lightcurve DataBase (Rev. 2013-Sep-12) Published Reference List:
[Scaltriti, F.; Zappala, V. (1976) Astron. Astrophys. Suppl. Ser. 23, 167-179.]
[Schober, H.J. (1976) Icarus 28, 415-420.]
[Michalowski, T.; Velichko, F.P. (1990) Acta Astronomica 40, 321-332.]
[De Angelis, G. (1993) Planet. Space Sci. 41, 285-290.]
[De Angelis, G.; Mottola, S. (1995) Planet. Space Sci. 43, 1013-1017.]
[Michalowski, T. (1996) Icarus 123, 456-462.]
[Shevchenko, V.G.; Chiorny, V.G.; Kalashnikov, A.V.; Krugly, Yu.N.; et al. (1996) Astron. Astrophys. Suppl. Ser. 115, 475-479.]
[Szabo, Gy.; Sarneczky, K.; Kiss, L.L. (1999) in Proc. IAU Coll. 173, Evolution and Source Regions of Asteroids and Comets, 185-188.]
[Torppa, J.; Hentunen, V.-P.; Paakkonen, P.; Kehusmaa, P.; Muinonen, K. (2008) Icarus 198, 91-107.]
geometric albedo albedo 0.2618   0.013 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 12
B-V BV .874 mag .035 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=5; phase (min.=17.34, mean=20.18, max.=23.85) deg.
U-B UB .421 mag .016 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=4; phase (min.=17.34, mean=20.70, max.=23.85) deg.
Tholen spectral type spec_T S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices; used ground-based radiometric albedo
SMASSII spectral type spec_B S   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)

79 Eurynome          Discovered 1863-Sep-14 by Watson, J. C. at Ann Arbor
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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