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85642 (1998 OS8)
Classification: Main-belt Asteroid          SPK-ID: 2085642
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1848937879102969 4.0545e-08  
a 2.194943538951286 9.0821e-09 au
q 1.789112113785351 8.9684e-08 au
i 4.133371691175372 4.3931e-06 deg
node 305.174415427765 5.367e-05 deg
peri 44.83447383194469 5.5245e-05 deg
M 233.1121708818903 1.7492e-05 deg
tp 2459419.149833904966
(2021-Jul-23.64983391)
5.9478e-05 TDB
period 1187.77302167807
3.25
7.3721e-06
2.018e-08
d
yr
n .3030882108194349 1.8812e-09 deg/d
Q 2.600774964117222 1.0761e-08 au
  Orbit Determination Parameters
   # obs. used (total)      899  
   data-arc span      7946 days (21.75 yr)  
   first obs. used      1998-07-26  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5377  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 15:39:00  

Additional Information
 Earth MOID = .785544 au 
 Jupiter MOID = 2.82501 au 
 T_jup = 3.644 
[ 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 15.6   n/a MPO359340  

85642 (1998 OS8)          Discovered 1998-Jul-26 by Elst, E. W. at La Silla
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

Alternate Designations
 1998 OS8 = 2000 CH29 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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