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266980 (2010 WP20)
Classification: Main-belt Asteroid          SPK-ID: 2266980
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1315307238756185 7.4115e-08  
a 2.744139904791708 2.7177e-08 au
q 2.383201196698484 2.1305e-07 au
i 2.218170760800964 7.0481e-06 deg
node 260.0943153623286 0.0001518 deg
peri 280.3552830751388 0.00015484 deg
M 295.0118508551235 3.0085e-05 deg
tp 2459300.236387318947
(2021-Mar-26.73638732)
0.00014069 TDB
period 1660.381174947307
4.55
2.4666e-05
6.753e-08
d
yr
n .2168176834523703 3.221e-09 deg/d
Q 3.105078612884932 3.0752e-08 au
  Orbit Determination Parameters
   # obs. used (total)      193  
   data-arc span      7001 days (19.17 yr)  
   first obs. used      2000-10-02  
   last obs. used      2019-12-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63119  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 17:22:58  

Additional Information
 Earth MOID = 1.3875 au 
 Jupiter MOID = 1.8681 au 
 T_jup = 3.335 
[ 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 16.6   n/a MPO503218  

266980 (2010 WP20)          Discovered 2003-May-05 by Spacewatch at Kitt Peak
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22

[ show close-approach data ]
Alternate Designations
 2010 WP20 = 2009 SX167 = 2010 VB91 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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