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JPL Small-Body Database Browser
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(2019 UM12)
Classification: Apollo [NEO]          SPK-ID: 3888751
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6128341557454842 0.00018799  
a 2.191179516880969 0.00098912 au
q .8483498675664225 2.897e-05 au
i 7.631742875317351 0.0019819 deg
node 44.5493017329731 4.7954e-05 deg
peri 52.65444329941649 0.00039753 deg
M 51.17935366242905 0.033803 deg
tp 2458832.074570984589
(2019-Dec-14.57457098)
0.0027999 TDB
period 1184.719034270626
3.24
0.80219
0.002196
d
yr
n .3038695163884442 0.00020575 deg/d
Q 3.534009166195516 0.0015953 au
  Orbit Determination Parameters
   # obs. used (total)      67  
   data-arc span      14 days  
   first obs. used      2019-10-24  
   last obs. used      2019-11-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .34798  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-15 06:27:21  

Additional Information
 Earth MOID = .00256542 au 
 Jupiter MOID = 1.74319 au 
 T_jup = 3.391 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458789.5 (2019-Nov-02.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6091251150652702 0.00018998  
q .8473193348928525 2.8263e-05 au
tp 2458832.313250219168
(2019-Dec-14.81325022)
0.0030279 TDB
node 44.5867813924666 7.8241e-05 deg
peri 52.93285868274214 0.000143 deg
i 7.799921733113515 0.0018832 deg
  Orbit Determination Parameters
   # obs. used (total)      67  
   data-arc span      14 days  
   first obs. used      2019-10-24  
   last obs. used      2019-11-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .34798  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-15 06:27:21  

Additional Information
 Jupiter MOID = 1.74319 au 
 T_jup = 3.391 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.609091862899718E-8 -5.369201961369238E-9 -5.752194132965991E-7 -1.484432149178605E-8 2.642239876723061E-8 3.577623996286979E-7
q -5.369201961369238E-9 7.987958096190639E-10 8.557197467129659E-8 2.208499728061641E-9 -3.936011267609877E-9 -5.322450997256864E-8
tp -5.752194132965991E-7 8.557197467129659E-8 9.168274616737066E-6 2.365903148058506E-7 -4.204993346280498E-7 -5.701888721603977E-6
node -1.484432149178605E-8 2.208499728061641E-9 2.365903148058506E-7 6.121691540400641E-9 -1.089522735801654E-8 -1.471611145123664E-7
peri 2.642239876723061E-8 -3.936011267609877E-9 -4.204993346280498E-7 -1.089522735801654E-8 2.044918626058576E-8 2.621320350773259E-7
i 3.577623996286979E-7 -5.322450997256864E-8 -5.701888721603977E-6 -1.471611145123664E-7 2.621320350773259E-7 3.546611671947163E-6

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 24.7   .40219 E2019-XC4 autocmod 2.8

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