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75 Eurydike (A862 SA)
Classification: Main-belt Asteroid          SPK-ID: 2000075
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 91 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3036099915155616 1.2309e-08  
a 2.674822037333776 3.5582e-09 au
q 1.862719341273231 3.2636e-08 au
i 4.991793888787022 9.4286e-07 deg
node 359.3264872990858 4.6113e-06 deg
peri 339.4095818077744 5.9733e-06 deg
M 141.1588654521686 2.4259e-06 deg
tp 2458769.963431528661
(2019-Oct-13.46343153)
1.0314e-05 TDB
period 1597.867508549157
4.37
3.1883e-06
8.729e-09
d
yr
n .2253002818280443 4.4956e-10 deg/d
Q 3.486924733394321 4.6385e-09 au
  Orbit Determination Parameters
   # obs. used (total)      4093  
   data-arc span      57474 days (157.36 yr)  
   first obs. used      1864-02-02  
   last obs. used      2021-06-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44814  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 10:30:09  

Additional Information
 Earth MOID = .854235 au 
 Jupiter MOID = 1.92091 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 9.07   n/a MPCxxxxx 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. 2020-October); 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 (A862 SA)          Discovered 1862-Sep-22 by Peters, C. H. F. at Clinton
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 A862 SA = 1947 BC = 1958 SA 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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