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(2002 XQ40)
Classification: Apollo [NEO]          SPK-ID: 3144515
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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3511650870489492 5.7287e-08  
a 1.074853965629642 4.6379e-09 au
q .6974027792244007 6.3834e-08 au
i 2.187351853704689 3.5288e-06 deg
node 270.4004895278131 5.3105e-05 deg
peri 73.0003381619504 5.3291e-05 deg
M 303.6728911438703 9.5337e-06 deg
tp 2459064.185062771749
(2020-Aug-02.68506277)
1.0954e-05 TDB
period 407.0264400821421
1.11
2.6344e-06
7.213e-09
d
yr
n .8844634268165684 5.7245e-09 deg/d
Q 1.452305152034884 6.2665e-09 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A2 [EST] -1.032260583592348E-13 7.177E-15
ALN [SET] 1. n/a
NK [SET] 0. n/a
NM [SET] 2. n/a
R0 [SET] 1. n/a
  Orbit Determination Parameters
   # obs. used (total)      166  
   data-arc span      6375 days (17.45 yr)  
   first obs. used      2002-12-11  
   last obs. used      2020-05-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64583  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-26 08:13:13  

Additional Information
 Earth MOID = .00655822 au 
 Jupiter MOID = 3.94969 au 
 T_jup = 5.691 
 Nongravitational accels. using nonstandard g(r) = (1 au/ r)^2 
[ 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 22.3   n/a MPO473077  

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