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13802 (1998 WR3)
Classification: Main-belt Asteroid          SPK-ID: 2013802
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1535063382359777 5.0723e-08  
a 2.255516883711281 1.438e-08 AU
q 1.909280746063338 1.1832e-07 AU
i 7.891989880848298 5.6944e-06 deg
node 58.31378342082514 3.9211e-05 deg
peri 224.3542463860078 4.3902e-05 deg
M 30.16938654155378 1.9081e-05 deg
tp 2456896.811276238728
(2014-Aug-27.31127624)
6.5674e-05 JED
period 1237.278739580739
3.39
1.1832e-05
3.239e-08
d
yr
n .2909611136791929 2.7825e-09 deg/d
Q 2.601753021359223 1.6587e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      981  
   data-arc span      11927 days (32.65 yr)  
   first obs. used      1981-10-30  
   last obs. used      2014-06-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51271  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Aug-13 14:23:07  

Additional Information
 Earth MOID = .9034 AU 
 T_jup = 3.596 
[ 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 13.7 mag n/a MPO263472  

13802 (1998 WR3)          Discovered 1998-Nov-18 by Ueda, S., Kaneda, H. at Kushiro (399)
Reference: 20000222/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 WR3 = 1981 UD7 = 1997 JK16 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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