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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1900699839022973 6.4776e-08  
a 3.094637832812928 3.2111e-08 AU
q 2.506440069746735 2.0699e-07 AU
i 3.008118681376778 5.847e-06 deg
node 83.90764697190292 0.00014481 deg
peri 318.6269177350904 0.00014595 deg
M 233.5972254896967 2.1581e-05 deg
tp 2457698.679798763957
(2016-Nov-06.17979876)
0.00012648 JED
period 1988.443121828289
5.44
3.095e-05
8.474e-08
d
yr
n .1810461642317409 2.8179e-09 deg/d
Q 3.682835595879121 3.8215e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      983  
   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      .50205  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Oct-09 14:20:45  

Additional Information
 Earth MOID = 1.51587 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 MPO309242  

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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