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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .8418930211292723 2.796e-06  
a 2.268455162650566 3.0707e-05 au
q .3586585924703861 1.5221e-06 au
i 4.962242291262914 2.4215e-05 deg
node 226.3733021288962 2.1522e-05 deg
peri 297.83787485334 4.8213e-05 deg
M 45.40683752893194 0.00088686 deg
tp 2458843.097190105864
(2019-Dec-25.59719011)
0.00012202 TDB
period 1247.940060255983
3.42
0.025339
6.937e-05
d
yr
n .2884753935426636 5.8574e-06 deg/d
Q 4.178251732830746 5.6558e-05 au
  Orbit Determination Parameters
   # obs. used (total)      93  
   # delay obs. used      1  
   # Doppler obs. used      1  
   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      4  
   norm. resid. RMS      .28605  
   source      ORB  
   producer      Giorgini  
   solution date      2019-Dec-12 23:19:22  

Additional Information
 Earth MOID = .00682058 au 
 Jupiter MOID = .91725 au 
 T_jup = 3.004 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458788.5 (2019-Nov-01.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .8419966370808227 2.7971e-06  
q .359151840801783 1.5235e-06 au
tp 2458843.085858939459
(2019-Dec-25.58585894)
0.000122 TDB
node 226.4208174435795 2.1403e-05 deg
peri 297.7284730659189 4.8397e-05 deg
i 4.992009902207329 2.4165e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      93  
   # delay obs. used      1  
   # Doppler obs. used      1  
   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      4  
   norm. resid. RMS      .28605  
   source      ORB  
   producer      Giorgini  
   solution date      2019-Dec-12 23:19:22  

Additional Information
 Jupiter MOID = .91725 au 
 T_jup = 3.004 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.823934545521967E-12 -4.188295469080335E-12 -3.412005672460463E-10 4.171529826904238E-11 8.119071039943125E-11 3.667352484058628E-11
q -4.188295469080335E-12 2.321001161736893E-12 1.831583679152484E-10 -2.299993366808035E-11 -5.348004150212072E-11 -1.888581560045756E-11
tp -3.412005672460463E-10 1.831583679152484E-10 1.488369599493608E-8 -1.819320975719813E-9 -3.609505331078469E-9 -1.60011169772369E-9
node 4.171529826904238E-11 -2.299993366808035E-11 -1.819320975719813E-9 4.580747307519343E-10 2.887268762446203E-10 3.586934948395536E-10
peri 8.119071039943125E-11 -5.348004150212072E-11 -3.609505331078469E-9 2.887268762446203E-10 2.342263192626601E-9 1.179336663105406E-10
i 3.667352484058628E-11 -1.888581560045756E-11 -1.60011169772369E-9 3.586934948395536E-10 1.179336663105406E-10 5.839241266395053E-10

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 22.0   .34168 E2019-VI7 autocmod 2.8

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