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437866 (2000 WF138)
Classification: Main-belt Asteroid          SPK-ID: 2437866
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2124132369058425 7.3014e-08  
a 3.134675331610605 3.9892e-08 au
q 2.468828797774301 2.3137e-07 au
i 16.5833885997135 7.8835e-06 deg
node 234.0909235006999 1.9631e-05 deg
peri 145.7992872452042 2.5418e-05 deg
M 210.4677752278594 2.1463e-05 deg
tp 2459842.514499888970
(2022-Sep-20.01449989)
0.00013369 TDB
period 2027.156490327993
5.55
3.8697e-05
1.059e-07
d
yr
n .177588657667841 3.39e-09 deg/d
Q 3.800521865446909 4.8366e-08 au
  Orbit Determination Parameters
   # obs. used (total)      230  
   data-arc span      7176 days (19.65 yr)  
   first obs. used      2000-10-24  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45835  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 09:33:36  

Additional Information
 Earth MOID = 1.49117 au 
 Jupiter MOID = 1.73526 au 
 T_jup = 3.114 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457879.5 (2017-May-06.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .21228035684972 7.308e-08  
q 2.471033207321534 2.3173e-07 au
tp 2457816.501628007212
(2017-Mar-04.00162801)
0.00010452 TDB
node 234.092581503272 1.9626e-05 deg
peri 146.0563882670224 2.5413e-05 deg
i 16.58201701010621 7.8831e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      230  
   data-arc span      7176 days (19.65 yr)  
   first obs. used      2000-10-24  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45835  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 09:33:36  

Additional Information
 Jupiter MOID = 1.73526 au 
 T_jup = 3.114 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.340754347506801E-15 -1.677756394462623E-14 -3.314215842367535E-13 -1.587102060180775E-15 1.043995063120255E-13 -9.139833536170782E-15
q -1.677756394462623E-14 5.369953775573351E-14 3.266116718727305E-12 2.347550151541889E-15 2.199880988943675E-15 3.176836566953715E-14
tp -3.314215842367535E-13 3.266116718727305E-12 1.092355984395728E-8 -1.203438765249202E-11 1.708448777772617E-9 1.80888430121965E-11
node -1.587102060180775E-15 2.347550151541889E-15 -1.203438765249202E-11 3.851679415819967E-10 -3.708510548103224E-10 -4.044427807384134E-11
peri 1.043995063120255E-13 2.199880988943675E-15 1.708448777772617E-9 -3.708510548103224E-10 6.458178090742361E-10 4.125141885947629E-11
i -9.139833536170782E-15 3.176836566953715E-14 1.80888430121965E-11 -4.044427807384134E-11 4.125141885947629E-11 6.214253879577089E-11

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 15.5   n/a MPO434613  

437866 (2000 WF138)          Discovered 2000-Nov-21 by LINEAR at Socorro
Reference: Last Updated: 2015-07-06

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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