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JPL Small-Body Database Browser
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(2019 UF9)
Classification: Apollo [NEO]          SPK-ID: 3884017
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 2 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3729776311120379 0.00072438  
a 1.254986751797194 0.0010215 au
q .7869047660348854 0.00026857 au
i 2.555537641871213 0.0041723 deg
node 40.93404880303078 0.0013051 deg
peri 73.5935211114858 0.0055788 deg
M 110.4414158764171 0.1123 deg
tp 2458842.961537125363
(2019-Dec-25.46153713)
0.032158 TDB
period 513.5197351900266
1.41
0.62699
0.001717
d
yr
n .7010441378008246 0.00085595 deg/d
Q 1.723068737559502 0.0014025 au
  Orbit Determination Parameters
   # obs. used (total)      19  
   data-arc span      6 days  
   first obs. used      2019-10-24  
   last obs. used      2019-10-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .40002  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Oct-30 08:03:56  

Additional Information
 Earth MOID = .00194734 au 
 Jupiter MOID = 3.38746 au 
 T_jup = 5.057 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458782.5 (2019-Oct-26.0) TDB
Reference: JPL 2 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3757042557357041 0.00071623  
q .7900103836469621 0.00028292 au
tp 2458842.426365715363
(2019-Dec-24.92636572)
0.028626 TDB
node 41.04424441510081 0.00072683 deg
peri 72.57626391922581 0.00036393 deg
i 2.476760550729363 0.004464 deg
  Orbit Determination Parameters
   # obs. used (total)      19  
   data-arc span      6 days  
   first obs. used      2019-10-24  
   last obs. used      2019-10-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .40002  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Oct-30 08:03:56  

Additional Information
 Jupiter MOID = 3.38746 au 
 T_jup = 5.057 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.129900633039019E-7 -2.026372838096257E-7 -2.050288466896698E-5 5.148767588904212E-7 1.480268299667842E-7 3.197229834895768E-6
q -2.026372838096257E-7 8.00453544621256E-8 8.09878733496271E-6 -2.032912464194008E-7 -5.879017262064744E-8 -1.262963047080716E-6
tp -2.050288466896698E-5 8.09878733496271E-6 .0008194559059941177 -2.058570695395771E-5 -5.889367769315528E-6 -.0001277834603120225
node 5.148767588904212E-7 -2.032912464194008E-7 -2.058570695395771E-5 5.282826987013151E-7 1.198524969023669E-7 3.206404475615827E-6
peri 1.480268299667842E-7 -5.879017262064744E-8 -5.889367769315528E-6 1.198524969023669E-7 1.324425328495201E-7 9.286968878262257E-7
i 3.197229834895768E-6 -1.262963047080716E-6 -.0001277834603120225 3.206404475615827E-6 9.286968878262257E-7 1.992748430696029E-5

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 28.1   .26506 MPO502130 autocmod 2.8

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