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JPL Small-Body Database Browser
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379084 (2008 WS139)
Classification: Main-belt Asteroid          SPK-ID: 2379084
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1961687995320266 1.182e-07  
a 3.109831994524896 4.6568e-08 au
q 2.499779985412659 3.4621e-07 au
i 29.88373129661532 9.9051e-06 deg
node 88.54471052992791 1.2583e-05 deg
peri 340.8977196018857 2.6382e-05 deg
M 59.86866720894252 2.0514e-05 deg
tp 2458667.379847113117
(2019-Jul-02.87984711)
0.00011208 TDB
period 2003.105474533847
5.48
4.4993e-05
1.232e-07
d
yr
n .1797209405978871 4.0368e-09 deg/d
Q 3.719884003637132 5.5703e-08 au
  Orbit Determination Parameters
   # obs. used (total)      257  
   data-arc span      6288 days (17.22 yr)  
   first obs. used      2002-11-16  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5443  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 03:07:55  

Additional Information
 Earth MOID = 1.52676 au 
 Jupiter MOID = 1.58537 au 
 T_jup = 2.988 
[ 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 15.4   n/a MPO413413  
diameter diameter 5.624 km 0.102 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.046   0.003 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

379084 (2008 WS139)          Discovered 2008-Nov-21 by CSS at Catalina
Reference: Last Updated: 2013-11-20

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