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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1196193299106762 5.3012e-08  
a 2.369135572006581 2.0348e-08 au
q 2.085741162415607 1.3124e-07 au
i 6.620539385116753 6.921e-06 deg
node 97.42036595516727 6.9531e-05 deg
peri 318.3372872643113 8.0004e-05 deg
M 191.9872223394474 4.1373e-05 deg
tp 2459222.117322460304
(2021-Jan-07.61732246)
0.00015617 TDB
period 1331.9358158451
3.65
1.7159e-05
4.698e-08
d
yr
n .2702832942228403 3.4821e-09 deg/d
Q 2.652529981597555 2.2782e-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 = 1.10287 au 
 Jupiter MOID = 2.64845 au 
 T_jup = 3.527 
[ 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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