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266899 (2009 WA106)
Classification: Main-belt Asteroid          SPK-ID: 2266899
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07126050101781969 5.2088e-08  
a 2.787117011869455 3.1264e-08 au
q 2.58850565720835 1.4267e-07 au
i 5.191051023111261 5.9612e-06 deg
node 110.2202087579544 9.7163e-05 deg
peri 176.796138510319 0.00012697 deg
M 223.3762035872125 8.6364e-05 deg
tp 2459645.493114393170
(2022-Mar-06.99311439)
0.00041198 TDB
period 1699.539372189545
4.65
2.8596e-05
7.829e-08
d
yr
n .2118221006767298 3.5641e-09 deg/d
Q 2.985728366530562 3.3492e-08 au
  Orbit Determination Parameters
   # obs. used (total)      270  
   data-arc span      8914 days (24.41 yr)  
   first obs. used      1995-11-23  
   last obs. used      2020-04-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5579  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 15:25:53  

Additional Information
 Earth MOID = 1.57213 au 
 Jupiter MOID = 2.12355 au 
 T_jup = 3.321 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457365.5 (2015-Dec-09.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07158450807020424 5.1878e-08  
q 2.589451458668459 1.4242e-07 au
tp 2457939.484281256467
(2017-Jul-04.98428126)
0.00039932 TDB
node 110.2922383868594 9.7098e-05 deg
peri 175.339415445975 0.00012659 deg
i 5.191915949303532 5.9641e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      270  
   data-arc span      8914 days (24.41 yr)  
   first obs. used      1995-11-23  
   last obs. used      2020-04-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5579  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 15:25:53  

Additional Information
 Jupiter MOID = 2.12355 au 
 T_jup = 3.321 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.691308756950706E-15 -7.234414379230266E-15 3.021831488148126E-12 -2.179216702556599E-14 6.649757819094873E-13 1.850945547783316E-15
q -7.234414379230266E-15 2.0282764694921E-14 -3.997617213535715E-12 4.86992469817735E-14 -1.008012717501654E-12 -4.208190350310453E-15
tp 3.021831488148126E-12 -3.997617213535715E-12 1.594534749213142E-7 -4.032000564329933E-10 3.255635012999271E-8 1.193538891253241E-11
node -2.179216702556599E-14 4.86992469817735E-14 -4.032000564329933E-10 9.428069583925001E-9 -9.470332156826039E-9 1.504893675120511E-10
peri 6.649757819094873E-13 -1.008012717501654E-12 3.255635012999271E-8 -9.470332156826039E-9 1.602500163588102E-8 -1.475117955973191E-10
i 1.850945547783316E-15 -4.208190350310453E-15 1.193538891253241E-11 1.504893675120511E-10 -1.475117955973191E-10 3.557022764462733E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.9   n/a MPO470834  

266899 (2009 WA106)          Discovered 2009-Nov-26 by Lowe, A. at Mayhill
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22

Alternate Designations
 2009 WA106 = 1995 WF40 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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