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192866 (1999 WS16)
Classification: Main-belt Asteroid          SPK-ID: 2192866
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1843794538806693 4.3129e-08  
a 2.690213482608936 1.6821e-08 au
q 2.194193389863087 1.1647e-07 au
i 6.750963872628836 4.8979e-06 deg
node 25.62807882189611 4.2414e-05 deg
peri 78.54826178293582 4.4651e-05 deg
M 266.512649633216 1.7052e-05 deg
tp 2459815.032217643074
(2022-Aug-23.53221764)
7.8512e-05 TDB
period 1611.678989300356
4.41
1.5116e-05
4.139e-08
d
yr
n .2233695434326405 2.095e-09 deg/d
Q 3.186233575354786 1.9923e-08 au
  Orbit Determination Parameters
   # obs. used (total)      552  
   data-arc span      7615 days (20.85 yr)  
   first obs. used      1999-10-04  
   last obs. used      2020-08-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55339  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 22:17:52  

Additional Information
 Earth MOID = 1.22309 au 
 Jupiter MOID = 2.00431 au 
 T_jup = 3.338 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.47   n/a E2021B55  

192866 (1999 WS16)          Discovered 1999-Nov-30 by Spacewatch at Kitt Peak
Reference: 20081113/Numbers.arcLast Updated: 2008-11-17

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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