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(2002 XQ40)
Classification: Apollo [NEO]          SPK-ID: 3144515
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3511103010178877 5.5267e-08  
a 1.075068555367084 6.4903e-09 au
q .6976009112772816 6.2898e-08 au
i 2.189797641089364 3.5028e-06 deg
node 270.1119683446543 5.248e-05 deg
peri 73.26044157592919 5.2627e-05 deg
M 120.5405748069916 1.0006e-05 deg
tp 2459064.172514855408
(2020-Aug-02.67251486)
1.0509e-05 TDB
period 407.1483376500921
1.11
3.687e-06
1.009e-08
d
yr
n .8841986242109826 8.007e-09 deg/d
Q 1.452536199456887 8.7691e-09 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A2 [EST] -1.036566542144013E-13 7.128E-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)      170  
   data-arc span      6375 days (17.45 yr)  
   first obs. used      2002-12-11  
   last obs. used      2020-05-25  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .64091  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 21:39:38  

Additional Information
 Earth MOID = .00639044 au 
 Jupiter MOID = 3.94966 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 22.4   n/a E2021B25  

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