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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 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03505808687469349 7.6119e-08  
a 3.056435563735318 3.9403e-08 AU
q 2.949282780214982 2.3565e-07 AU
i 10.38343933127252 7.7994e-06 deg
node 150.2716981879232 3.3507e-05 deg
peri 7.84497892507694 9.6474e-05 deg
M 358.4684149976073 8.9366e-05 deg
tp 2456808.803475290515
(2014-May-31.30347529)
0.00048448 JED
period 1951.736991362194
5.34
3.7742e-05
1.033e-07
d
yr
n .1844510820839348 3.5668e-09 deg/d
Q 3.163588347255653 4.0784e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      971  
   data-arc span      8572 days (23.47 yr)  
   first obs. used      1990-09-14  
   last obs. used      2014-03-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55559  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Mar-22 11:07:14  

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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