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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1288531660903145 6.2817e-08  
a 2.681135063267812 1.6533e-08 au
q 2.335662321649999 1.7131e-07 au
i 14.05389518480446 6.5957e-06 deg
node 56.3706773811838 2.0323e-05 deg
peri 126.443770766757 3.2845e-05 deg
M 30.83871379819785 2.2815e-05 deg
tp 2457463.136856468839
(2016-Mar-15.63685647)
0.00010166 JED
period 1603.52769557165
4.39
1.4832e-05
4.061e-08
d
yr
n .2245050091708342 2.0766e-09 deg/d
Q 3.026607804885626 1.8663e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1256  
   data-arc span      22696 days (62.14 yr)  
   first obs. used      1954-02-26  
   last obs. used      2016-04-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5701  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 13:56:56  

Additional Information
 Earth MOID = 1.36256 au 
 Jupiter MOID = 2.00675 au 
 T_jup = 3.322 
[ 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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