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123397 (2000 WB78)
Classification: Main-belt Asteroid          SPK-ID: 2123397
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2289802412209653 8.5036e-08  
a 2.584469824124434 2.3783e-08 au
q 1.992677300368116 2.3398e-07 au
i 3.930277819191981 6.3623e-06 deg
node 302.8210981178481 6.808e-05 deg
peri 24.20885701908049 6.8682e-05 deg
M 318.5091312984815 1.0201e-05 deg
tp 2459175.406380488551
(2020-Nov-21.90638049)
4.4559e-05 TDB
period 1517.594086276001
4.15
2.0948e-05
5.735e-08
d
yr
n .2372175822610104 3.2745e-09 deg/d
Q 3.176262347880753 2.9229e-08 au
  Orbit Determination Parameters
   # obs. used (total)      503  
   data-arc span      9635 days (26.38 yr)  
   first obs. used      1994-03-07  
   last obs. used      2020-07-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53368  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 17:35:33  

Additional Information
 Earth MOID = .981804 au 
 Jupiter MOID = 2.17708 au 
 T_jup = 3.382 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456719.5 (2014-Mar-03.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .226211383326879 8.4728e-08  
q 2.002490255778386 2.3279e-07 au
tp 2456139.333665221287
(2012-Jul-30.83366522)
3.6929e-05 TDB
node 302.8659712800151 6.8005e-05 deg
peri 24.20059352166027 6.864e-05 deg
i 3.930100335666865 6.3552e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      503  
   data-arc span      9635 days (26.38 yr)  
   first obs. used      1994-03-07  
   last obs. used      2020-07-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53368  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 17:35:33  

Additional Information
 Jupiter MOID = 2.17708 au 
 T_jup = 3.382 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.17887378439821E-15 -1.969644387687757E-14 7.847005606329482E-13 4.760670448014404E-14 8.576248501438004E-14 -6.942464196815247E-15
q -1.969644387687757E-14 5.419166775400464E-14 -2.263675087057853E-12 -1.337060559890107E-13 -2.465425589614405E-13 1.943063341300046E-14
tp 7.847005606329482E-13 -2.263675087057853E-12 1.363734276911537E-9 -3.431575570139839E-13 3.570575350316482E-10 -1.832417320355845E-12
node 4.760670448014404E-14 -1.337060559890107E-13 -3.431575570139839E-13 4.624657616948334E-9 -4.61428243873779E-9 1.836799278150248E-10
peri 8.576248501438004E-14 -2.465425589614405E-13 3.570575350316482E-10 -4.61428243873779E-9 4.711433719593806E-9 -1.836401993252063E-10
i -6.942464196815247E-15 1.943063341300046E-14 -1.832417320355845E-12 1.836799278150248E-10 -1.836401993252063E-10 4.038866936016607E-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 15.7   n/a MPO432728  

123397 (2000 WB78)          Discovered 2000-Nov-20 by LINEAR at Socorro
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

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