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8085 (1989 CD8)
Classification: Main-belt Asteroid          SPK-ID: 2008085
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1122112726343793 4.0762e-08  
a 3.011575694781417 1.7316e-08 au
q 2.673642953435229 1.1962e-07 au
i 9.341047423067282 4.0788e-06 deg
node 262.5926268221236 2.6823e-05 deg
peri 136.26810276 3.3744e-05 deg
M 101.0718269945286 1.9612e-05 deg
tp 2458464.559326764986
(2018-Dec-12.05932677)
0.00010393 TDB
period 1908.926039053887
5.23
1.6464e-05
4.508e-08
d
yr
n .1885877150999655 1.6265e-09 deg/d
Q 3.349508436127605 1.9259e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2193  
   data-arc span      13677 days (37.45 yr)  
   first obs. used      1982-12-23  
   last obs. used      2020-06-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42696  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 16:46:02  

Additional Information
 Earth MOID = 1.69163 au 
 Jupiter MOID = 2.04571 au 
 T_jup = 3.220 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.3   n/a MPO458910  
diameter diameter 12.160 km 0.167 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 7.75 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Shipley, H.; Dillard, A.; Kendall, J.; Reichert, M.; et al. (2008) Minor Planet Bull. 35, 99-101.]
[Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.]
geometric albedo albedo 0.173   0.029 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

8085 (1989 CD8)          Discovered 1989-Feb-07 by Debehogne, H. at La Silla
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1989 CD8 = 1982 YO4 = 1994 AP3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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