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JPL Small-Body Database Browser
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(2018 XW2)
Classification: Aten [NEO]          SPK-ID: 3836859
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 3 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3019537191369389 0.00052333  
a .9984662194003036 0.00036749 au
q .6969756310197831 0.00026628 au
i 19.72949181215571 0.039819 deg
node 78.17736591331014 0.0022698 deg
peri 250.0214896987383 0.030647 deg
M 212.2192010587002 0.17193 deg
tp 2458750.093939918969
(2019-Sep-23.59393992)
0.25662 TDB
period 364.4168847146397
1.00
0.20119
0.0005508
d
yr
n .9878795826979906 0.00054539 deg/d
Q 1.299956807780824 0.00047846 au
  Orbit Determination Parameters
   # obs. used (total)      42  
   data-arc span      4 days  
   first obs. used      2018-12-10  
   last obs. used      2018-12-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .37767  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Dec-24 07:51:55  

Additional Information
 Earth MOID = .0195179 au 
 Jupiter MOID = 4.03153 au 
 T_jup = 5.998 
[ 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 25.5   .47383 E2018Y63 autocmod 2.6q

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