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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1902687846647116 6.4795e-08  
a 3.094129218579645 3.2076e-08 AU
q 2.505413012564922 2.07e-07 AU
i 3.00834473842183 5.8485e-06 deg
node 83.90636312819447 0.0001449 deg
peri 318.6420576381866 0.00014604 deg
M 197.377109030352 2.1207e-05 deg
tp 2457698.518479820367
(2016-Nov-06.01847982)
0.00012637 JED
period 1987.952930904854
5.44
3.0913e-05
8.464e-08
d
yr
n .1810908067305896 2.816e-09 deg/d
Q 3.682845424594367 3.818e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      969  
   data-arc span      12991 days (35.57 yr)  
   first obs. used      1978-12-03  
   last obs. used      2014-06-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50555  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jul-14 12:26:24  

Additional Information
 Earth MOID = 1.51394 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 13.0 mag n/a MPO259425  

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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