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JPL Small-Body Database Browser
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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .184627717024437 4.7191e-08  
a 2.195397855842913 1.0123e-08 au
q 1.790066561758292 1.0261e-07 au
i 4.133002501252993 5.7523e-06 deg
node 305.1711408286805 5.4249e-05 deg
peri 44.87118244972726 5.6028e-05 deg
M 111.8516554194099 1.7202e-05 deg
tp 2458231.345475418217
(2018-Apr-22.84547542)
5.5389e-05 TDB
period 1188.141814719895
3.25
8.2177e-06
2.25e-08
d
yr
n .3029941338146323 2.0956e-09 deg/d
Q 2.600729149927534 1.1992e-08 au
  Orbit Determination Parameters
   # obs. used (total)      803  
   data-arc span      7528 days (20.61 yr)  
   first obs. used      1998-07-26  
   last obs. used      2019-03-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54737  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 06:45:08  

Additional Information
 Earth MOID = .785597 au 
 Jupiter MOID = 2.82168 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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