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243855 (2000 WA73)
Classification: Main-belt Asteroid          SPK-ID: 2243855
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .286802734514587 5.8257e-08  
a 3.105822437155403 2.4416e-08 au
q 2.215064069262474 1.8478e-07 au
i 12.15815015947725 5.0413e-06 deg
node 254.8067750429158 3.2052e-05 deg
peri 81.43066294439505 3.3331e-05 deg
M 245.921601958147 9.3201e-06 deg
tp 2459634.025754256226
(2022-Feb-23.52575426)
5.6107e-05 TDB
period 1999.232768403423
5.47
2.3575e-05
6.454e-08
d
yr
n .1800690773428519 2.1234e-09 deg/d
Q 3.996580805048333 3.1419e-08 au
  Orbit Determination Parameters
   # obs. used (total)      314  
   data-arc span      7623 days (20.87 yr)  
   first obs. used      1999-06-15  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57769  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 12:51:23  

Additional Information
 Earth MOID = 1.24498 au 
 Jupiter MOID = 1.69114 au 
 T_jup = 3.122 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457251.5 (2015-Aug-17.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2855806587999978 5.831e-08  
q 2.220233961141902 1.8497e-07 au
tp 2457634.320530681409
(2016-Sep-02.82053068)
4.5627e-05 TDB
node 254.8160753185855 3.204e-05 deg
peri 81.56864200933684 3.3335e-05 deg
i 12.15588532162801 5.0407e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      314  
   data-arc span      7623 days (20.87 yr)  
   first obs. used      1999-06-15  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57769  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 12:51:23  

Additional Information
 Jupiter MOID = 1.69114 au 
 T_jup = 3.122 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.40003103522583E-15 -1.073879382094544E-14 5.122009914989963E-13 3.532556052848264E-14 1.419748255580976E-13 -1.965903329565572E-14
q -1.073879382094544E-14 3.421298345313996E-14 -1.390752288154614E-12 -1.064793935283877E-13 -4.287493759447735E-13 6.313005838962329E-14
tp 5.122009914989963E-13 -1.390752288154614E-12 2.081785257126579E-9 5.169849854739035E-12 4.775717362790685E-10 -1.804567591688722E-12
node 3.532556052848264E-14 -1.064793935283877E-13 5.169849854739035E-12 1.026576488982002E-9 -1.00225801536053E-9 -2.218191605964297E-11
peri 1.419748255580976E-13 -4.287493759447735E-13 4.775717362790685E-10 -1.00225801536053E-9 1.111243124142942E-9 2.085138011366819E-11
i -1.965903329565572E-14 6.313005838962329E-14 -1.804567591688722E-12 -2.218191605964297E-11 2.085138011366819E-11 2.540887583741768E-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 15.1   n/a MPO433597  
diameter diameter 6.450 km 0.243 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.047   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

243855 (2000 WA73)          Discovered 2000-Nov-20 by LINEAR at Socorro
Reference: 20100726/Numbers.arcLast Updated: 2010-07-28

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Alternate Designations
 2000 WA73 = 2005 QY13 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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