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64 Angelina (A861 EA)
Classification: Main-belt Asteroid          SPK-ID: 2000064
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 116 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1252171354889292 3.2717e-08  
a 2.683409424847234 6.3254e-09 au
q 2.347400583323869 8.7263e-08 au
i 1.309846318919193 3.4441e-06 deg
node 309.0971616022009 0.00019643 deg
peri 179.2244558522911 0.00019726 deg
M 128.0718466092448 1.9164e-05 deg
tp 2458429.310771692020
(2018-Nov-06.81077169)
8.4977e-05 TDB
period 1605.568496394506
4.40
5.677e-06
1.554e-08
d
yr
n .224219646068307 7.928e-10 deg/d
Q 3.0194182663706 7.1174e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2846  
   data-arc span      58225 days (159.41 yr)  
   first obs. used      1861-03-08  
   last obs. used      2020-08-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49593  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 22:08:51  

Additional Information
 Earth MOID = 1.36242 au 
 Jupiter MOID = 2.02842 au 
 T_jup = 3.364 
[ 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 8.0   n/a MPO473761  
magnitude slope G 0.48   n/a PDS3 (MPC 17257) Fit
diameter diameter 58.292 km 1.082 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 8.752 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Poutanen, M. (1983) in Asteroids, Comets, Meteors. C.-I. Lagerkvist, H. Rickman, eds. Uppsala, pp. 45-48.]
[Harris, A.W.; Young, J.W.; Contreiras, L.; Dockweiler, T.; et al. (1989) Icarus 81, 365-374.]
[Michalowski, T. (1993) Icarus 106, 563-572.]
[Behrend, R. (2005) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Rosenbush, V.K.; Kiselev, N.N.; Shevchenko, V.G.; Jockers, K.; et al. (2005) Icarus 178, 222-234.]
[Durech, J. (2006) IAU 2006, poster paper.]
[Durech, J.; Kaasalainen, M.; Herald, D.; Dunham, D.; et al. (2011) Icarus 214, 652-670.]
[Warner, B.D. (2014) Minor Planet Bull. 41, 102-112.]
[Behrend, R. (2015) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Hanus, J.; Durech, J.; Oszkiewicz, D.A.; Behrend, R.; et al. (2016) Astron. Astrophys. 586, A108.]
geometric albedo albedo 0.483   0.060 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.734   0.037 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=7; phase (min.=4.80, mean=9.35, max.=16.41) deg.
U-B UB 0.254   0.040 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=7; phase (min.=4.80, mean=9.35, max.=16.41) deg.
Tholen spectral type spec_T E   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices; used ground-based radiometric albedo
SMASSII spectral type spec_B Xe   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)

64 Angelina (A861 EA)          Discovered 1861-Mar-04 by Tempel, E. W. at Marseille
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 A861 EA = 1930 QY 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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