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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03469942047606341 7.1659e-08  
a 3.055356622233493 3.7725e-08 AU
q 2.949337518094288 2.2339e-07 AU
i 10.38449799699246 7.3614e-06 deg
node 150.2736358446601 3.1554e-05 deg
peri 7.850254828909821 9.2746e-05 deg
M 35.37332360165294 8.5474e-05 deg
tp 2456808.825360102851
(2014-May-31.32536010)
0.00046384 JED
period 1950.703618920025
5.34
3.6128e-05
9.891e-08
d
yr
n .1845487938343541 3.418e-09 deg/d
Q 3.161375726372698 3.9034e-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 = 1.95988 AU 
 T_jup = 3.210 
[ 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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