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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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1898341784507382 5.6042e-08  
a 3.095268762606706 3.0174e-08 au
q 2.507680959973029 1.8577e-07 au
i 3.007650050303654 5.5892e-06 deg
node 83.90348946271327 0.00011983 deg
peri 318.5709462458663 0.00012123 deg
M 306.0424198835094 2.2278e-05 deg
tp 2457698.623312160669
(2016-Nov-06.12331216)
0.00012618 JED
period 1989.051253709577
5.45
2.9085e-05
7.963e-08
d
yr
n .1809908112365635 2.6466e-09 deg/d
Q 3.682856565240383 3.5902e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1059  
   data-arc span      13473 days (36.89 yr)  
   first obs. used      1978-12-03  
   last obs. used      2015-10-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .4926  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Nov-30 16:09:01  

Additional Information
 Earth MOID = 1.51613 au 
 Jupiter MOID = 1.72983 au 
 T_jup = 3.193 
[ 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 MPO309242  

11502 (1989 WU2)          Discovered 1989-Nov-21 by Ueda, S., Kaneda, H. at Kushiro
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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