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213741 (2002 WR28)
Classification: Main-belt Asteroid          SPK-ID: 2213741
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03701535663185215 4.728e-08  
a 2.749514676105767 2.2551e-08 au
q 2.647740409805201 1.3687e-07 au
i 4.383979414491965 6.1726e-06 deg
node 201.2220926258497 5.7399e-05 deg
peri 301.8304707023684 9.7328e-05 deg
M 258.6855778080598 8.0546e-05 deg
tp 2459669.152848765897
(2022-Mar-30.65284877)
0.00037437 TDB
period 1665.261686397344
4.56
2.0488e-05
5.609e-08
d
yr
n .2161822390682814 2.6597e-09 deg/d
Q 2.851288942406333 2.3386e-08 au
  Orbit Determination Parameters
   # obs. used (total)      371  
   data-arc span      7562 days (20.70 yr)  
   first obs. used      2000-04-29  
   last obs. used      2021-01-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5691  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:43:54  

Additional Information
 Earth MOID = 1.66222 au 
 Jupiter MOID = 2.13792 au 
 T_jup = 3.341 
[ 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 16.23   n/a E2021B55  

213741 (2002 WR28)          Discovered 2002-Nov-22 by NEAT at Palomar
Reference: 20090509/Numbers.arcLast Updated: 2009-05-11

[ show close-approach data ]
Alternate Designations
 2002 WR28 = 2006 RN64 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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