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JPL Small-Body Database Browser
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(2016 XK18)
Classification: Apollo [NEO]          SPK-ID: 3765708
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6184079553968574 7.6429e-07  
a 2.568240781545916 4.5301e-06 au
q .9800202508632789 2.3453e-07 au
i 5.774195523422052 1.3006e-05 deg
node 270.2300815107591 1.6421e-05 deg
peri 184.4754931252996 3.6751e-05 deg
M 299.0300527819883 0.00081373 deg
tp 2459255.104075989478
(2021-Feb-09.60407599)
0.0040717 TDB
period 1503.322071585043
4.12
0.0039776
1.089e-05
d
yr
n .2394696431353731 6.336e-07 deg/d
Q 4.156461312228554 7.3316e-06 au
  Orbit Determination Parameters
   # obs. used (total)      87  
   # delay obs. used      4  
   # Doppler obs. used      2  
   data-arc span      14 days  
   first obs. used      2016-12-07  
   last obs. used      2016-12-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      3  
   norm. resid. RMS      .34886  
   source      ORB  
   producer      Giorgini  
   solution date      2017-Jul-13 15:31:19  

Additional Information
 Earth MOID = .0021879 au 
 Jupiter MOID = 1.07075 au 
 T_jup = 3.125 
[ 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 MPO394942  

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