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71930 (2000 WM61)
Classification: Main-belt Asteroid          SPK-ID: 2071930
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1595115840124195 3.3069e-08  
a 2.381115362016668 9.8705e-09 au
q 2.001299878905083 7.9529e-08 au
i 2.896435173021028 3.8517e-06 deg
node 239.1650829795095 8.8223e-05 deg
peri 228.2872498944966 8.9865e-05 deg
M 354.6685315046484 1.6358e-05 deg
tp 2458620.375287920664
(2019-May-16.87528792)
6.1017e-05 TDB
period 1342.051192401749
3.67
8.3449e-06
2.285e-08
d
yr
n .2682461012204312 1.668e-09 deg/d
Q 2.760930845128252 1.1445e-08 au
  Orbit Determination Parameters
   # obs. used (total)      997  
   data-arc span      7555 days (20.68 yr)  
   first obs. used      1998-05-23  
   last obs. used      2019-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52657  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 05:33:27  

Additional Information
 Earth MOID = 1.01967 au 
 Jupiter MOID = 2.36947 au 
 T_jup = 3.519 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456571.5 (2013-Oct-06.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1590450725901518 3.3237e-08  
q 2.002771155712586 7.994e-08 au
tp 2455936.755594305520
(2012-Jan-10.25559431)
5.8642e-05 TDB
node 239.2370069193704 8.8298e-05 deg
peri 228.3980207151644 8.9942e-05 deg
i 2.894689825216166 3.8495e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      997  
   data-arc span      7555 days (20.68 yr)  
   first obs. used      1998-05-23  
   last obs. used      2019-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52657  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 05:33:27  

Additional Information
 Jupiter MOID = 2.36947 au 
 T_jup = 3.519 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.104669079586571E-15 -2.642641525955991E-15 5.559656790171876E-13 1.688073135779467E-14 1.778578386386438E-13 -8.669406495458928E-16
q -2.642641525955991E-15 6.390357219547226E-15 -1.32003048936301E-12 -3.952884208416126E-14 -4.146825383772923E-13 2.042245625296855E-15
tp 5.559656790171876E-13 -1.32003048936301E-12 3.438857622315107E-9 2.017998211638961E-11 1.024075823388066E-9 -4.518767360567789E-13
node 1.688073135779467E-14 -3.952884208416126E-14 2.017998211638961E-11 7.79653104295039E-9 -7.779348767442591E-9 -8.562906911773018E-11
peri 1.778578386386438E-13 -4.146825383772923E-13 1.024075823388066E-9 -7.779348767442591E-9 8.089493024267107E-9 8.536208016372868E-11
i -8.669406495458928E-16 2.042245625296855E-15 -4.518767360567789E-13 -8.562906911773018E-11 8.536208016372868E-11 1.481865376229763E-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 15.3   n/a MPO453127  

71930 (2000 WM61)          Discovered 2000-Nov-21 by LINEAR at Socorro
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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