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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0350580765511356 7.159e-08  
a 3.056435533682074 3.8141e-08 AU
q 2.949282782768637 2.234e-07 AU
i 10.38343996786526 7.3605e-06 deg
node 150.2716933547329 3.1555e-05 deg
peri 7.845128329491052 9.1948e-05 deg
M 358.4682720902636 8.4761e-05 deg
tp 2456808.804249939004
(2014-May-31.30424994)
0.0004595 JED
period 1951.736962575707
5.34
3.6533e-05
1e-07
d
yr
n .1844510848044339 3.4526e-09 deg/d
Q 3.163588284595511 3.9478e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1007  
   data-arc span      8665 days (23.72 yr)  
   first obs. used      1990-09-14  
   last obs. used      2014-06-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52466  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-16 13:58:46  

Additional Information
 Earth MOID = 1.95939 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 12.9 mag n/a MPO256984  

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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