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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1900699754091681 5.9772e-08  
a 3.094637829889304 3.0907e-08 AU
q 2.506440093661963 1.9472e-07 AU
i 3.008118056464154 5.7454e-06 deg
node 83.90767907147431 0.00013216 deg
peri 318.6268868447142 0.00013341 deg
M 233.5972256212128 2.1568e-05 deg
tp 2457698.679797048139
(2016-Nov-06.17979705)
0.00012629 JED
period 1988.443119010451
5.44
2.9789e-05
8.156e-08
d
yr
n .1810461644883028 2.7122e-09 deg/d
Q 3.682835566116645 3.6781e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1022  
   data-arc span      13356 days (36.57 yr)  
   first obs. used      1978-12-03  
   last obs. used      2015-06-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .49872  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jul-06 12:07:07  

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
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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