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(2019 UM4)
Classification: Apollo [NEO]          SPK-ID: 3879531
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 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6024800624875449 0.0004792  
a 2.554721292717177 0.0031239 au
q 1.01555264864267 1.76e-05 au
i 9.043004141460434 0.0049575 deg
node 218.0989560576128 0.00014232 deg
peri 190.0057014581732 0.0010147 deg
M 49.19404674250291 0.089798 deg
tp 2458796.690808057926
(2019-Nov-09.19080806)
0.0017981 TDB
period 1491.467239586837
4.08
2.7356
0.00749
d
yr
n .241373052283553 0.00044273 deg/d
Q 4.093889936791682 0.005006 au
  Orbit Determination Parameters
   # obs. used (total)      45  
   data-arc span      12 days  
   first obs. used      2019-10-22  
   last obs. used      2019-11-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .42855  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 08:14:33  

Additional Information
 Earth MOID = .0282102 au 
 Jupiter MOID = 1.31709 au 
 T_jup = 3.141 
[ 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 26.2   .29604 E2019-VB2 autocmod 2.8

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