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JPL Small-Body Database Browser
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85645 (1998 OS11)
Classification: Main-belt Asteroid          SPK-ID: 2085645
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2140153868152214 4.9597e-08  
a 2.778690507124063 1.7329e-08 au
q 2.184007983402123 1.3875e-07 au
i 9.515335208971159 5.0975e-06 deg
node 308.6425997969798 2.9996e-05 deg
peri 26.84416776998266 3.187e-05 deg
M 244.5068002758878 1.2881e-05 deg
tp 2459543.265963815364
(2021-Nov-24.76596382)
6.3279e-05 TDB
period 1691.837679103952
4.63
1.5826e-05
4.333e-08
d
yr
n .2127863709659586 1.9905e-09 deg/d
Q 3.373373030846003 2.1037e-08 au
  Orbit Determination Parameters
   # obs. used (total)      665  
   data-arc span      7856 days (21.51 yr)  
   first obs. used      1998-07-26  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52369  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 20:36:07  

Additional Information
 Earth MOID = 1.17834 au 
 Jupiter MOID = 2.01918 au 
 T_jup = 3.281 
[ 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 14.7   n/a MPO436374  

85645 (1998 OS11)          Discovered 1998-Jul-26 by Elst, E. W. at La Silla
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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