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523223 (2016 WJ57)
Classification: Main-belt Asteroid          SPK-ID: 2523223
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ hide orbit diagram ]

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.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1216881661312134 5.8071e-08  
a 3.051644465276258 5.6188e-08 au
q 2.680295446612323 1.8418e-07 au
i 11.45420425704011 8.2345e-06 deg
node 146.3439527109177 2.9313e-05 deg
peri 313.0670656929587 4.6216e-05 deg
M 219.2851615140856 3.9685e-05 deg
tp 2459761.591241423470
(2022-Jul-01.09124142)		 0.00022725 TDB
period 1947.149638663558
5.33		 5.3777e-05
1.472e-07		 d
yr
n .1848856363433315 5.1062e-09 deg/d
Q 3.422993483940193 6.3025e-08 au
   Orbit Determination Parameters
   # obs. used (total)      125  
   data-arc span      5003 days (13.70 yr)  
   first obs. used      2007-01-27  
   last obs. used      2020-10-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59356  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 22:45:30  

Additional Information
 Earth MOID = 1.71186 au 
 Jupiter MOID = 1.73817 au 
 T_jup = 3.195 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458105.5 (2017-Dec-18.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1203919467013775 5.6711e-08  
q 2.683081570898062 1.8063e-07 au
tp 2457801.825923886642
(2017-Feb-17.32592389)		 0.00020102 TDB
node 146.7388767688336 2.9453e-05 deg
peri 310.7637864105144 4.6821e-05 deg
i 11.42045339078381 8.22e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      125  
   data-arc span      5003 days (13.70 yr)  
   first obs. used      2007-01-27  
   last obs. used      2020-10-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59356  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 22:45:30  

Additional Information
 Jupiter MOID = 1.73817 au 
 T_jup = 3.195 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.216178848345862E-15 -9.850802594556548E-15 2.522851874346996E-12 2.039240237109433E-15 4.373887259899552E-13 -2.385949822784589E-15
q -9.850802594556548E-15 3.262734700086418E-14 -2.863205803762744E-12 4.946993589093714E-15 -4.238295275034261E-13 1.198838301703016E-14
tp 2.522851874346996E-12 -2.863205803762744E-12 4.040747853341165E-8 7.355796305786149E-11 7.346401841215726E-9 -9.191416269658945E-12
node 2.039240237109433E-15 4.946993589093714E-15 7.355796305786149E-11 8.674789926335138E-10 -8.3646238162051E-10 1.621407894829079E-11
peri 4.373887259899552E-13 -4.238295275034261E-13 7.346401841215726E-9 -8.3646238162051E-10 2.192214258746373E-9 -1.763612164735881E-11
i -2.385949822784589E-15 1.198838301703016E-14 -9.191416269658945E-12 1.621407894829079E-11 -1.763612164735881E-11 6.756845107304807E-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 16.2   n/a MPO448179  

523223 (2016 WJ57)          Discovered 2007-Jan-27 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2018-05-31

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