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JPL Small-Body Database Browser
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(2019 AU9)
Classification: Apollo [NEO]          SPK-ID: 3837805
Ephemeris | Orbit Diagram | Orbital Elements | 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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1609612269227285 0.00020853  
a 1.12184966966694 0.00022138 au
q .9412753704144913 4.8203e-05 au
i 4.813840306013287 0.0056311 deg
node 115.3563479464405 0.0015369 deg
peri 50.99990424627708 0.0010208 deg
M 46.85404144271411 0.010083 deg
tp 2458544.013459145461
(2019-Mar-01.51345915)
0.004596 TDB
period 434.0106868368367
1.19
0.12847
0.0003517
d
yr
n .8294726625829366 0.00024553 deg/d
Q 1.302423968919388 0.00025701 au
  Orbit Determination Parameters
   # obs. used (total)      23  
   data-arc span      9 days  
   first obs. used      2019-01-10  
   last obs. used      2019-01-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .34909  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jan-19 07:44:55  

Additional Information
 Earth MOID = .00533181 au 
 Jupiter MOID = 3.66809 au 
 T_jup = 5.552 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458494.5 (2019-Jan-11.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1635394602955612 0.00020259  
q .9422622148800386 5.0583e-05 au
tp 2458543.317048111883
(2019-Feb-28.81704811)
0.0020528 TDB
node 115.444307863571 0.0012133 deg
peri 50.13048628989814 0.0039954 deg
i 4.830253978664771 0.0055814 deg
  Orbit Determination Parameters
   # obs. used (total)      23  
   data-arc span      9 days  
   first obs. used      2019-01-10  
   last obs. used      2019-01-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .34909  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jan-19 07:44:55  

Additional Information
 Jupiter MOID = 3.66809 au 
 T_jup = 5.552 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.104145337401765E-8 -1.024524328613608E-8 -4.042265759428919E-7 2.457676492120054E-7 8.009953861077552E-7 1.130687536132922E-6
q -1.024524328613608E-8 2.558618199142376E-9 1.00406842671166E-7 -6.136353101879185E-8 -2.005507862527398E-7 -2.822831425189252E-7
tp -4.042265759428919E-7 1.00406842671166E-7 4.213826380612616E-6 -2.414857720579077E-6 -7.612202003608342E-6 -1.112324788845499E-5
node 2.457676492120054E-7 -6.136353101879185E-8 -2.414857720579077E-6 1.472173994657852E-6 4.803136618862304E-6 6.770957049955382E-6
peri 8.009953861077552E-7 -2.005507862527398E-7 -7.612202003608342E-6 4.803136618862304E-6 1.596310891521426E-5 2.208322514106933E-5
i 1.130687536132922E-6 -2.822831425189252E-7 -1.112324788845499E-5 6.770957049955382E-6 2.208322514106933E-5 3.115152431369385E-5

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 26.819   .36655 4 autocmod 2.6q

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