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(2018 TU)
Classification: Apollo [NEO]          SPK-ID: 3831187
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 2 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4373003462452991 0.00036058  
a 1.378136037658701 0.00065305 au
q .7754766712174262 0.00012947 au
i 4.070782199654491 0.0036838 deg
node 188.3507475068446 0.00022503 deg
peri 258.8101958601567 0.00023487 deg
M 335.6185290250806 0.23096 deg
tp 2459040.521555495177
(2020-Jul-10.02155549)
0.40756 TDB
period 590.9307109929752
1.62
0.42003
0.00115
d
yr
n .609208479611884 0.00043303 deg/d
Q 1.980795404099975 0.00093863 au
  Orbit Determination Parameters
   # obs. used (total)      38  
   data-arc span      2 days  
   first obs. used      2018-10-03  
   last obs. used      2018-10-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .51028  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-06 06:30:38  

Additional Information
 Earth MOID = .00499035 au 
 Jupiter MOID = 3.26145 au 
 T_jup = 4.699 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458395.5 (2018-Oct-04.0) TDB
Reference: JPL 2 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .436842885578875 0.00036244  
q .7745397675602579 0.00012772 au
tp 2458449.527875685919
(2018-Nov-27.02787569)
0.013466 TDB
node 188.5929046393988 0.00016817 deg
peri 258.7453535544641 0.00044473 deg
i 4.21784225796923 0.0034401 deg
  Orbit Determination Parameters
   # obs. used (total)      38  
   data-arc span      2 days  
   first obs. used      2018-10-03  
   last obs. used      2018-10-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .51028  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-06 06:30:38  

Additional Information
 Jupiter MOID = 3.26145 au 
 T_jup = 4.699 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.31364300670611E-7 -4.628826239434E-8 -4.880419853318289E-6 -5.979671388158757E-8 -1.408064262708141E-7 1.245874298803537E-6
q -4.628826239434E-8 1.631183537101688E-8 1.7195538513802E-6 2.103865520502401E-8 4.935613040618736E-8 -4.391438659311013E-7
tp -4.880419853318289E-6 1.7195538513802E-6 .0001813297211767636 2.224666134117456E-6 5.256061910823415E-6 -4.62724781319318E-5
node -5.979671388158757E-8 2.103865520502401E-8 2.224666134117456E-6 2.828058668967378E-8 6.948349913722307E-8 -5.629022014279958E-7
peri -1.408064262708141E-7 4.935613040618736E-8 5.256061910823415E-6 6.948349913722307E-8 1.977873635122422E-7 -1.310836401424281E-6
i 1.245874298803537E-6 -4.391438659311013E-7 -4.62724781319318E-5 -5.629022014279958E-7 -1.310836401424281E-6 1.183446528800895E-5

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 27.5   .3338 MPO458797 autocmod 2.6n

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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