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266896 (2009 WR101)
Classification: Main-belt Asteroid          SPK-ID: 2266896
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1113819717884871 6.5391e-08  
a 2.982050194779684 2.653e-08 au
q 2.64990356411288 1.94e-07 au
i 2.137224072910246 4.5637e-06 deg
node 144.0786410702687 0.00015449 deg
peri 229.0432594853242 0.00015604 deg
M 89.92747245528773 1.9689e-05 deg
tp 2458730.648370657363
(2019-Sep-04.14837066)
0.00010322 TDB
period 1880.922280423814
5.15
2.5101e-05
6.872e-08
d
yr
n .1913954679291076 2.5541e-09 deg/d
Q 3.314196825446487 2.9485e-08 au
  Orbit Determination Parameters
   # obs. used (total)      297  
   data-arc span      7272 days (19.91 yr)  
   first obs. used      2001-02-20  
   last obs. used      2021-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56973  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-23 23:12:04  

Additional Information
 Earth MOID = 1.64935 au 
 Jupiter MOID = 2.15008 au 
 T_jup = 3.248 
[ 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 16.2   n/a MPO503217  

266896 (2009 WR101)          Discovered 2001-Mar-20 by Sapcewatch at Kitt Peak
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22

[ show close-approach data ]
Alternate Designations
 2009 WR101 = 2006 BF59 = 2006 HZ129 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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