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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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1535063381178029 5.0723e-08  
a 2.255516883491528 1.4376e-08 AU
q 1.909280746143865 1.1832e-07 AU
i 7.891989749835211 5.6915e-06 deg
node 58.31378407635945 3.9195e-05 deg
peri 224.3542452376663 4.3884e-05 deg
M 30.16938722399697 1.9061e-05 deg
tp 2456896.811273908403
(2014-Aug-27.31127391)
6.5605e-05 JED
period 1237.278739399919
3.39
1.1829e-05
3.239e-08
d
yr
n .290961113721715 2.7817e-09 deg/d
Q 2.601753020839191 1.6582e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      997  
   data-arc span      11999 days (32.85 yr)  
   first obs. used      1981-10-30  
   last obs. used      2014-09-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51036  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Oct-09 14:26:04  

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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