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JPL Small-Body Database Browser
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(2019 UM9)
Classification: Aten [NEO]          SPK-ID: 3884023
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 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1550231902567236 4.7441e-05  
a .9867904365538569 1.7501e-05 au
q .833815034964453 3.2263e-05 au
i 12.35422665818374 0.0046819 deg
node 33.20002468704688 2.3079e-05 deg
peri 104.561609782789 0.0044858 deg
M 130.8564204862978 0.0043146 deg
tp 2458870.354738566817
(2020-Jan-21.85473857)
0.0077424 TDB
period 358.0435254290926
0.98
0.0095251
2.608e-05
d
yr
n 1.005464348415636 2.6749e-05 deg/d
Q 1.139765838143261 2.0214e-05 au
  Orbit Determination Parameters
   # obs. used (total)      81  
   data-arc span      2 days  
   first obs. used      2019-10-27  
   last obs. used      2019-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      5  
   norm. resid. RMS      .53027  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 07:20:41  

Additional Information
 Earth MOID = .0073159 au 
 Jupiter MOID = 3.87214 au 
 T_jup = 6.114 
[ 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 27.3   .56527 E2019X49 autocmod 2.8

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