Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
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 ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 88 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .303578298154644 1.2311e-08  
a 2.674581765392031 3.5506e-09 au
q 1.862636784778875 3.2639e-08 au
i 4.991487581112517 9.4414e-07 deg
node 359.3320546070839 4.6132e-06 deg
peri 339.3794336503481 5.9921e-06 deg
M 97.03771711516148 2.4002e-06 deg
tp 2458769.854100790326
(2019-Oct-13.35410079)
1.0356e-05 TDB
period 1597.652215287534
4.37
3.1814e-06
8.71e-09
d
yr
n .2253306423984207 4.487e-10 deg/d
Q 3.486526746005187 4.6285e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3947  
   data-arc span      57385 days (157.11 yr)  
   first obs. used      1864-02-02  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45253  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 10:15:13  

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

[ 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 ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Apr-19 17:15 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin