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JPL Small-Body Database Browser
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382708 (2002 WR21)
Classification: Main-belt Asteroid          SPK-ID: 2382708
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1194418271559736 5.2815e-08  
a 2.367661637863192 2.0406e-08 au
q 2.084863805749707 1.3068e-07 au
i 6.621925797683661 6.9273e-06 deg
node 97.41590286731761 6.9517e-05 deg
peri 318.8089848907799 8.009e-05 deg
M 299.6008932379017 4.2076e-05 deg
tp 2459223.757418285993
(2021-Jan-09.25741829)
0.00015663 TDB
period 1330.693033251827
3.64
1.7203e-05
4.71e-08
d
yr
n .2705357216158746 3.4975e-09 deg/d
Q 2.650459469976676 2.2844e-08 au
  Orbit Determination Parameters
   # obs. used (total)      114  
   data-arc span      8538 days (23.38 yr)  
   first obs. used      1996-01-12  
   last obs. used      2019-05-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56181  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 06:59:53  

Additional Information
 Earth MOID = 1.10236 au 
 Jupiter MOID = 2.64766 au 
 T_jup = 3.528 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.3   n/a MPO437566  

382708 (2002 WR21)          Discovered 2002-Nov-24 by NEAT at Palomar
Reference: Last Updated: 2014-01-21

[ show close-approach data ]
Alternate Designations
 2002 WR21 = 2007 BU10 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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