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450263 (2003 WD158)
Classification: Apollo [NEO, PHA]          SPK-ID: 2450263
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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 85 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4092748557568367 5.8272e-08  
a 1.426600052208816 2.6277e-09 au
q .8427285216183575 8.3563e-08 au
i 16.71566621164739 9.7283e-06 deg
node 92.26934942605725 1.2567e-05 deg
peri 102.2766896892136 1.5465e-05 deg
M 287.1825081691554 1.0461e-05 deg
tp 2459326.388191696746
(2021-Apr-21.88819170)
1.8243e-05 TDB
period 622.3744854616348
1.70
1.7196e-06
4.708e-09
d
yr
n .5784298817021342 1.5982e-09 deg/d
Q 2.010471582799275 3.7032e-09 au
  Orbit Determination Parameters
   # obs. used (total)      376  
   data-arc span      6305 days (17.26 yr)  
   first obs. used      2003-11-30  
   last obs. used      2021-03-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50504  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-18 06:27:13  

Additional Information
 Earth MOID = .046141 au 
 Jupiter MOID = 3.05602 au 
 T_jup = 4.563 
[ show covariance matrix ]

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 18.75   n/a MPCxxxxx  

450263 (2003 WD158)          Discovered 2003-Nov-30 by LINEAR at Socorro
Reference: Last Updated: 2015-11-30

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