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JPL Small-Body Database Browser
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(2018 XW)
Classification: Apollo [NEO]          SPK-ID: 3836735
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | 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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5812288791600723 0.00032775  
a 2.402076479825451 0.0019052 au
q 1.005920259799732 1.0553e-05 au
i 7.253893260348357 0.0029276 deg
node 80.22428266246531 0.00048034 deg
peri 359.6168430618304 0.00071066 deg
M 36.18793047915466 0.042911 deg
tp 2458463.809000341015
(2018-Dec-11.30900034)
0.00053958 TDB
period 1359.811385334137
3.72
1.6178
0.004429
d
yr
n .2647425987770648 0.00031497 deg/d
Q 3.79823269985117 0.0030126 au
  Orbit Determination Parameters
   # obs. used (total)      98  
   data-arc span      12 days  
   first obs. used      2018-12-06  
   last obs. used      2018-12-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .53349  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-29 18:58:42  

Additional Information
 Earth MOID = .0215926 au 
 Jupiter MOID = 1.49177 au 
 T_jup = 3.263 
[ 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 24.8   .44471 E2018Y66 autocmod 2.6q

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