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30887 (1992 WL2)
Classification: Main-belt Asteroid          SPK-ID: 2030887
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1291420115660618 6.4001e-08  
a 2.682074042746245 2.2592e-08 au
q 2.335705605696876 1.7286e-07 au
i 14.05052162277152 8.9318e-06 deg
node 56.38631978976007 2.1268e-05 deg
peri 126.5274759607513 3.9859e-05 deg
M 345.8684896843727 3.4986e-05 deg
tp 2457463.478258987029
(2016-Mar-15.97825899)
0.00015631 JED
period 1604.370143668101
4.39
2.0271e-05
5.55e-08
d
yr
n .2243871225233133 2.8351e-09 deg/d
Q 3.028442479795615 2.551e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1054  
   data-arc span      22311 days (61.08 yr)  
   first obs. used      1954-02-26  
   last obs. used      2015-03-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .59611  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Apr-07 17:33:25  

Additional Information
 Earth MOID = 1.36282 au 
 Jupiter MOID = 2.00439 au 
 T_jup = 3.321 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.2 mag n/a MPO266108  

30887 (1992 WL2)          Discovered 1992-Nov-18 by Ueda, S., Kaneda, H. at Kushiro
Reference: 20011130/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1992 WL2 = 2000 ST344 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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