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11502 (1989 WU2)
Classification: Main-belt Asteroid          SPK-ID: 2011502
[ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB
Reference: JPL 1 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1907908465468386 7.5129e-08  
a 3.092681495112818 3.1567e-08 AU
q 2.502626174560501 2.3575e-07 AU
i 3.008564013467267 6.4843e-06 deg
node 83.90202851864336 0.00017742 deg
peri 318.602858985305 0.00017913 deg
M 124.9591334384594 2.3767e-05 deg
tp 2455710.948472942236
(2011-May-29.44847294)		 0.00012655 JED
period 1986.557868241372
5.44		 3.0416e-05
8.327e-08		 d
yr
n .181217977968442 2.7746e-09 deg/d
Q 3.682736815665135 3.759e-08 AU
   Orbit Determination Parameters
   # obs. used (total)      918  
   data-arc span      12555 days (34.37 yr)  
   first obs. used      1978-12-03  
   last obs. used      2013-04-18  
   planetary ephem.      DE405  
   SB-pert. ephem.      SB405-CPV-2  
   condition code      0  
   fit RMS      .525  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Apr-29 13:44:46  

Additional Information
 Earth MOID = 1.51165 AU 
 T_jup = 3.194 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.1 mag n/a PDS3 (MPC 35833)  

11502 (1989 WU2)          Discovered 1989-Nov-21 by Ueda, S., Kaneda, H. at Kushiro (399)
Reference: 19990928/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1989 WU2 = 1978 XV = 1983 RO4 
[ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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