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441672 (2008 XU38)
Classification: Main-belt Asteroid          SPK-ID: 2441672
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02606260220227821 7.6553e-08  
a 2.521368254313469 3.9033e-08 au
q 2.455654836495845 1.8419e-07 au
i 3.072198781613302 8.2119e-06 deg
node 44.46383554629298 0.00018736 deg
peri 41.35678498628968 0.0003505 deg
M 302.1150738697864 0.00030594 deg
tp 2459235.634215630490
(2021-Jan-21.13421563)
0.0012461 TDB
period 1462.355111874165
4.00
3.3958e-05
9.297e-08
d
yr
n .2461782347371298 5.7165e-09 deg/d
Q 2.587081672131094 4.005e-08 au
  Orbit Determination Parameters
   # obs. used (total)      80  
   data-arc span      6331 days (17.33 yr)  
   first obs. used      2000-12-22  
   last obs. used      2018-04-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64302  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-May-07 07:03:22  

Additional Information
 Earth MOID = 1.47249 au 
 Jupiter MOID = 2.44548 au 
 T_jup = 3.453 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457111.5 (2015-Mar-30.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02577628754594342 7.3613e-08  
q 2.457016914050195 1.7878e-07 au
tp 2457758.556198481881
(2017-Jan-05.05619848)
0.0012541 TDB
node 44.49853484876463 0.00018712 deg
peri 37.89298772148263 0.0003564 deg
i 3.074849017636706 8.2169e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      80  
   data-arc span      6331 days (17.33 yr)  
   first obs. used      2000-12-22  
   last obs. used      2018-04-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64302  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-May-07 07:03:22  

Additional Information
 Jupiter MOID = 2.44548 au 
 T_jup = 3.453 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.418809478633513E-15 -1.287297932969076E-14 2.679344192849896E-11 -2.740308985973976E-14 6.440100938137816E-12 9.899458362395517E-15
q -1.287297932969076E-14 3.196124819543164E-14 -3.772523897642784E-11 4.21626726605141E-15 -9.109502097163161E-12 -1.92254677898625E-14
tp 2.679344192849896E-11 -3.772523897642784E-11 1.572648380656613E-6 -3.332994293045197E-9 3.805094443535096E-7 2.438962563091882E-10
node -2.740308985973976E-14 4.21626726605141E-15 -3.332994293045197E-9 3.501451393657547E-8 -3.576244094448225E-8 -3.535511530342167E-10
peri 6.440100938137816E-12 -9.109502097163161E-12 3.805094443535096E-7 -3.576244094448225E-8 1.270184839875225E-7 4.11406945698201E-10
i 9.899458362395517E-15 -1.92254677898625E-14 2.438962563091882E-10 -3.535511530342167E-10 4.11406945698201E-10 6.751772511670737E-11

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 17.6   n/a MPO440827  

441672 (2008 XU38)          Discovered 2008-Dec-02 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-09-02

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