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(2013 UM9)
Classification: Apollo [NEO]          SPK-ID: 3653322
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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2463700074200809 9.386e-07  
a 1.21530871778531 1.1138e-08 au
q .9158930999668541 1.1419e-06 au
i 2.962667721227155 1.529e-05 deg
node 38.60495214878286 3.4333e-05 deg
peri 283.9312769155252 0.00025526 deg
M 169.2785186214806 0.00010967 deg
tp 2458970.394131001304
(2020-Apr-30.89413100)
0.00014788 TDB
period 489.359863933845
1.34
6.7273e-06
1.842e-08
d
yr
n .7356549372603783 1.0113e-08 deg/d
Q 1.514724335603766 1.3882e-08 au
  Orbit Determination Parameters
   # obs. used (total)      65  
   data-arc span      1477 days (4.04 yr)  
   first obs. used      2013-10-30  
   last obs. used      2017-11-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45059  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 08:53:06  

Additional Information
 Earth MOID = .0182795 au 
 Jupiter MOID = 3.77261 au 
 T_jup = 5.217 
[ 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 24.6   n/a MPO428320  

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