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JPL Small-Body Database Browser
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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 ]

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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 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .12168821855747 6.7035e-08  
a 3.051644479026024 6.1134e-08 au
q 2.680295298702608 2.0123e-07 au
i 11.45420632197443 8.3516e-06 deg
node 146.3439144062019 3.6824e-05 deg
peri 313.0671014440355 5.2515e-05 deg
M 219.2851573236088 4.0116e-05 deg
tp 2459761.591269232570
(2022-Jul-01.09126923)		 0.0002284 TDB
period 1947.149651823439
5.33		 5.8512e-05
1.602e-07		 d
yr
n .1848856350937753 5.5558e-09 deg/d
Q 3.422993659349439 6.8574e-08 au
   Orbit Determination Parameters
   # obs. used (total)      104  
   data-arc span      4561 days (12.49 yr)  
   first obs. used      2007-01-27  
   last obs. used      2019-07-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59058  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 08:40:29  

Additional Information
 Earth MOID = 1.71186 au 
 Jupiter MOID = 1.73817 au 
 T_jup = 3.195 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457775.5 (2017-Jan-22.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1205011996934859 6.6566e-08  
q 2.682754795945817 2.0067e-07 au
tp 2457801.441292996039
(2017-Feb-16.94129300)		 0.00020597 TDB
node 146.740538455071 3.6993e-05 deg
peri 310.6679669675175 5.3015e-05 deg
i 11.42080958387452 8.3406e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      104  
   data-arc span      4561 days (12.49 yr)  
   first obs. used      2007-01-27  
   last obs. used      2019-07-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59058  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 08:40:29  

Additional Information
 Jupiter MOID = 1.73817 au 
 T_jup = 3.195 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.431011860147424E-15 -1.289313869174945E-14 9.554861993567706E-13 -1.362800948153173E-14 4.050685644193554E-14 -3.844635418851423E-15
q -1.289313869174945E-14 4.026836879167145E-14 1.109238633144635E-12 5.008326300857272E-14 5.720144159991228E-13 1.58763824480214E-14
tp 9.554861993567706E-13 1.109238633144635E-12 4.242373705378254E-8 7.772599475004646E-11 7.872698273831647E-9 -1.089102688752495E-11
node -1.362800948153173E-14 5.008326300857272E-14 7.772599475004646E-11 1.368455045544186E-9 -1.326353612857415E-9 4.466433450364387E-11
peri 4.050685644193554E-14 5.720144159991228E-13 7.872698273831647E-9 -1.326353612857415E-9 2.810642163525925E-9 -4.578966260542343E-11
i -3.844635418851423E-15 1.58763824480214E-14 -1.089102688752495E-11 4.466433450364387E-11 -4.578966260542343E-11 6.95650813035121E-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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