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(2019 UL4)
Classification: Apollo [NEO]          SPK-ID: 3879532
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 2458779.5 (2019-Oct-23.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4556431105442172 0.00096652  
a 1.806565044978485 0.0032165 au
q .9834161284840347 6.4335e-06 au
i 8.765895360980203 0.013727 deg
node 225.6515943349839 0.0030296 deg
peri 208.1649216540688 0.003099 deg
M 344.3379733274361 0.045635 deg
tp 2458818.085513977671
(2019-Nov-30.58551398)
0.0094077 TDB
period 886.9085286577192
2.43
2.3686
0.006485
d
yr
n .4059043163615053 0.001084 deg/d
Q 2.629713961472936 0.004682 au
  Orbit Determination Parameters
   # obs. used (total)      24  
   data-arc span      10 days  
   first obs. used      2019-10-21  
   last obs. used      2019-10-31  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      8  
   norm. resid. RMS      .51272  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 22:00:22  

Additional Information
 Earth MOID = .0232001 au 
 Jupiter MOID = 2.69035 au 
 T_jup = 3.917 
[ 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 25.3   .55697 MPO502115 autocmod 2.8

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