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JPL Small-Body Database Browser
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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.


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Orbital Elements at Epoch 2454761.5 (2008-Oct-22.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6823832883945092 0.15065  
a 2.335502326933729 1.0253 au
q .7417945690276627 0.026297 au
i 5.283451804728175 0.78078 deg
node 208.9416504765725 0.011677 deg
peri 111.8738326761374 1.122 deg
M 11.55683705486893 8.632 deg
tp 2454719.649045004418
(2008-Sep-10.14904500)
3.7019 TDB
period 1303.673637248525
3.57
858.44
2.35
d
yr
n .2761427321333272 0.18183 deg/d
Q 3.929210084839795 1.7249 au
  Orbit Determination Parameters
   # obs. used (total)      9  
   first obs. used      2008-10-22  
   last obs. used      2008-10-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      9  
   norm. resid. RMS      .44157  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 09:02:30  

Additional Information
 Earth MOID = 1.16032E-5 au 
 Jupiter MOID = 1.49407 au 
 T_jup = 3.203 
[ 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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