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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1289449741463059 8.0766e-08  
a 2.68047032091094 2.9276e-08 AU
q 2.334837144681138 2.0788e-07 AU
i 14.05297745208196 9.2204e-06 deg
node 56.41809512197626 2.8251e-05 deg
peri 126.77408108 4.3731e-05 deg
M 255.8050440269384 3.4884e-05 deg
tp 2457464.437124069904
(2016-Mar-16.93712407)
0.00015885 JED
period 1602.931380942721
4.39
2.626e-05
7.19e-08
d
yr
n .2245885284174021 3.6794e-09 deg/d
Q 3.026103497140741 3.305e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      860  
   data-arc span      22070 days (60.42 yr)  
   first obs. used      1954-02-26  
   last obs. used      2014-07-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .62863  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Sep-12 14:27:33  

Additional Information
 Earth MOID = 1.36312 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 (399)
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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