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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1534559504806819 5.0741e-08  
a 2.255393269640907 1.4346e-08 AU
q 1.909289751740429 1.1833e-07 AU
i 7.892362107735977 5.6949e-06 deg
node 58.31683675361464 3.9238e-05 deg
peri 224.3722112707862 4.3932e-05 deg
M 331.959708116955 1.9156e-05 deg
tp 2456896.863347077811
(2014-Aug-27.36334708)
6.5731e-05 JED
period 1237.177026997656
3.39
1.1804e-05
3.232e-08
d
yr
n .2909850345941496 2.7762e-09 deg/d
Q 2.601496787541385 1.6547e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      968  
   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      .51581  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jul-14 12:31:19  

Additional Information
 Earth MOID = .901576 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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