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JPL Small-Body Database Browser
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(2019 UN12)
Classification: Apollo [NEO, PHA]          SPK-ID: 3888754
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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .8421898507841244 0.00018893  
a 2.274761887751281 0.0022131 au
q .3589805129366164 8.0534e-05 au
i 4.993950149419511 0.0018666 deg
node 226.4189979569168 0.00051697 deg
peri 297.7373054295975 0.00013376 deg
M 290.3137408143591 0.10392 deg
tp 2458843.075532226601
(2019-Dec-25.57553223)
0.0077539 TDB
period 1253.14793220484
3.43
1.8288
0.005007
d
yr
n .287276538346595 0.00041923 deg/d
Q 4.190543262565946 0.0040769 au
  Orbit Determination Parameters
   # obs. used (total)      88  
   data-arc span      18 days  
   first obs. used      2019-10-26  
   last obs. used      2019-11-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .28403  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-14 09:20:20  

Additional Information
 Earth MOID = .00676517 au 
 Jupiter MOID = .909513 au 
 T_jup = 2.998 
[ 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 21.924   .34666 15 autocmod 2.8

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