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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 87 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3035782987987831 1.2311e-08  
a 2.67458177046812 3.551e-09 au
q 1.86263678659117 3.2639e-08 au
i 4.991487564813917 9.4425e-07 deg
node 359.3320544982645 4.6133e-06 deg
peri 339.3794337626648 5.9933e-06 deg
M 97.03771614838939 2.4008e-06 deg
tp 2458769.854103854801
(2019-Oct-13.35410385)
1.0359e-05 TDB
period 1597.65221983581
4.37
3.1817e-06
8.711e-09
d
yr
n .2253306417569383 4.4875e-10 deg/d
Q 3.486526754345069 4.629e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3925  
   data-arc span      57374 days (157.08 yr)  
   first obs. used      1864-02-02  
   last obs. used      2021-03-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4535  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Mar-16 10:34:08  

Additional Information
 Earth MOID = .853094 au 
 Jupiter MOID = 1.92118 au 
 T_jup = 3.307 
[ 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 9.06   n/a E2021B10 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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1956-Apr-24 06:01 < 00:01 Jupiter 1.90085936803693 1.90085925821284 1.90085947786901 1.36946373741392 0.992084355542214 2435587.750590851 0.331075624286371 284.632233195339 42.6176328576575 -86.7388734209984 7819962.80129713 T 87 CATAB v2.0f-lin.ifort 2021-Mar-16 10:35:00 2021-Mar-16 10:35
2039-Apr-19 23:35 < 00:01 Jupiter 1.898333846199 1.8983337326833 1.89833395972841 1.37250028403742 0.995676568122052 2465898.482413840 0.165298359308367 311.640908152926 39.8278168245184 -86.3676430123679 8839924.41920142 T 87 CATAB v2.0f-lin.ifort 2021-Mar-16 10:35:00 2021-Mar-16 10:35
2122-Apr-14 22:11 < 00:01 Jupiter 1.90443640074905 1.90443625875556 1.90443654276484 1.38817354741877 1.01857751077899 2496208.424495060 0.615306267612809 407.719808480593 38.232991067459 -87.8207382892193 8645913.76628336 T 87 CATAB v2.0f-lin.ifort 2021-Mar-16 10:35:00 2021-Mar-16 10:35

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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