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16494 Oka (1990 SP8)
Classification: Main-belt Asteroid          SPK-ID: 2016494
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0345740265402921 5.9387e-08  
a 3.055850813038859 3.2431e-08 au
q 2.950197745925681 1.7384e-07 au
i 10.38454102639767 5.9206e-06 deg
node 150.2708235229151 3.1082e-05 deg
peri 8.231412471965429 9.2177e-05 deg
M 108.8258243258416 8.4876e-05 deg
tp 2456810.671010625045
(2014-Jun-02.17101063)
0.00046221 JED
period 1951.176914949977
5.34
3.1061e-05
8.504e-08
d
yr
n .1845040279236952 2.9371e-09 deg/d
Q 3.161503880152038 3.3552e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1151  
   data-arc span      9057 days (24.80 yr)  
   first obs. used      1990-09-14  
   last obs. used      2015-07-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51912  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Sep-02 14:45:49  

Additional Information
 Earth MOID = 1.96008 au 
 Jupiter MOID = 1.8247 au 
 T_jup = 3.209 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.0 mag n/a MPO296270  

16494 Oka           Discovered 1990 Sept. 22 by E. W. Elst at the European Southern Observatory.
The Oka river has its source in the central Russian Upland. With a total length of 1490 km, it is the largest right tributary of the Volga. At the confluence with the Volga it meets the city of Nizhny Novgorod.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20060613/MPCPages.arcLast Updated: 2008-05-22

[ show close-approach data ]
Alternate Designations
 1990 SP8 = 1998 DU3 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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