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(2017 WJ16)
Classification: Aten [NEO]          SPK-ID: 3789720
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2142929569521974 1.2739e-08  
a .8225409163820312 2.6559e-09 au
q .6462761911963556 1.1833e-08 au
i 5.716408309886003 7.8268e-06 deg
node 58.99847305409661 5.0774e-06 deg
peri 186.5850850076059 2.0769e-05 deg
M 205.3286236530388 3.2603e-05 deg
tp 2459317.569062961936
(2021-Apr-13.06906296)
2.4364e-05 TDB
period 272.4800390458603
0.75
1.3197e-06
3.613e-09
d
yr
n 1.321197696758291 6.3989e-09 deg/d
Q .9988056415677068 3.225e-09 au
  Orbit Determination Parameters
   # obs. used (total)      151  
   # delay obs. used      2  
   # Doppler obs. used      0  
   data-arc span      1105 days (3.03 yr)  
   first obs. used      2017-11-25  
   last obs. used      2020-12-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .40478  
   source      ORB  
   producer      Giorgini  
   solution date      2020-Dec-07 19:04:31  

Additional Information
 Earth MOID = .00805127 au 
 Jupiter MOID = 4.00204 au 
 T_jup = 7.099 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 24.5   n/a E2020X02  

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