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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .19612115903511 1.2434e-07  
a 3.110092002506403 5.6993e-08 au
q 2.500137154269022 3.7534e-07 au
i 29.88415216169049 1.2885e-05 deg
node 88.54550519038079 1.7747e-05 deg
peri 340.9781783566215 3.0024e-05 deg
M 347.930209019057 2.4247e-05 deg
tp 2458667.666934892141
(2019-Jul-03.16693489)
0.00013583 TDB
period 2003.356694357738
5.48
5.5068e-05
1.508e-07
d
yr
n .1796984036911178 4.9395e-09 deg/d
Q 3.720046850743785 6.8171e-08 au
  Orbit Determination Parameters
   # obs. used (total)      135  
   data-arc span      6202 days (16.98 yr)  
   first obs. used      2002-11-16  
   last obs. used      2019-11-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63272  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-05 00:17:52  

Additional Information
 Earth MOID = 1.52692 au 
 Jupiter MOID = 1.58468 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

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