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JPL Small-Body Database Browser
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75 Eurydike
Classification: Main-belt Asteroid          SPK-ID: 2000075
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 77 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3036918951779823 3.8329e-08  
a 2.674602630154863 5.0044e-09 au
q 1.862347488555116 1.0268e-07 au
i 4.991336412731273 4.435e-06 deg
node 359.3525330449152 3.7762e-05 deg
peri 339.2768389859259 3.8112e-05 deg
M 321.8867151958416 6.4579e-06 deg
tp 2458769.645795660276
(2019-Oct-13.14579566)
2.8955e-05 TDB
period 1597.670910565429
4.37
4.484e-06
1.228e-08
d
yr
n .2253280056733292 6.3241e-10 deg/d
Q 3.486857771754609 6.5242e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3274  
   data-arc span      56885 days (155.74 yr)  
   first obs. used      1864-02-02  
   last obs. used      2019-11-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48984  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 01:49:03  

Additional Information
 Earth MOID = .853735 au 
 Jupiter MOID = 1.91657 au 
 T_jup = 3.306 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 8.96   n/a IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 14
magnitude slope G 0.23   n/a PDS3 (MPC 17257) Fit
diameter diameter 62.377 km 1.603 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 5.357 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Harris, A.W.; Young, J.W. (1989) Icarus 81, 314-364.]
[Behrend, R. (2002) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Shevchenko, V.G.; Bel'skaya, I.N.; Krugly, Yu.N.; Chiorny, V.G.; Gaftonyuk, N.M. (2002) Icarus 155, 365-374.]
[Tungalag, N.; Shevchenko, V.G.; Lupishko, D.F. (2002) Kin. Fiz. Neb. Tel 18, 508-516; Kinematics and Physics of Celestial Bodies 18, ???-???.]
geometric albedo albedo 0.117   0.032 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.710   0.018 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=3; phase (min.=3.92, mean=10.25, max.=14.69) deg.
U-B UB 0.266   0.019 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=3; phase (min.=3.92, mean=10.25, max.=14.69) 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 Xk   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)

75 Eurydike          Discovered 1862-Sep-22 by Peters, C. H. F. at Clinton
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1947 BC = 1958 SA 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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