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(2008 UM1)
Classification: Apollo [NEO]          SPK-ID: 3432678
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.


Orbital Elements at Epoch 2454761.5 (2008-Oct-22.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .682699372809894 0.15077  
a 2.337577623648174 1.028 au
q .7417148460891232 0.026316 au
i 5.285448142444352 0.78134 deg
node 208.9416778460672 0.011678 deg
peri 111.8723071293779 1.121 deg
M 11.53965807634981 8.6334 deg
tp 2454719.655543741907
(2008-Sep-10.15554374)
3.7027 TDB
period 1305.411664127788
3.57
861.16
2.358
d
yr
n .2757750753211894 0.18192 deg/d
Q 3.933440401207225 1.7299 au
  Orbit Determination Parameters
   # obs. used (total)      9  
   first obs. used      2008-10-22  
   last obs. used      2008-10-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      9  
   norm. resid. RMS      .44156  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 02:04:48  

Additional Information
 Earth MOID = 1.16119E-5 au 
 Jupiter MOID = 1.49018 au 
 T_jup = 3.201 
[ 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 32.1   n/a MPO147555  

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