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JPL Small-Body Database Browser
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(2019 UN8)
Classification: Apollo [NEO]          SPK-ID: 3883110
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458782.5 (2019-Oct-26.0) TDB
Reference: JPL 1 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .7219803784718734 0.0027469  
a 2.562499445225732 0.023538 au
q .7124251259276926 0.00050079 au
i .356885512783875 0.0027092 deg
node 18.5644929795576 0.16587 deg
peri 299.8164620406138 0.18235 deg
M 10.67259422910696 0.16232 deg
tp 2458738.081734663237
(2019-Sep-11.58173466)
0.063535 TDB
period 1498.283845330144
4.10
20.644
0.05652
d
yr
n .2402748992602765 0.0033106 deg/d
Q 4.412573764523771 0.040532 au
  Orbit Determination Parameters
   # obs. used (total)      16  
   data-arc span      1 day  
   first obs. used      2019-10-25  
   last obs. used      2019-10-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      8  
   norm. resid. RMS      .42736  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Oct-27 00:42:09  

Additional Information
 Earth MOID = .00120873 au 
 Jupiter MOID = .931827 au 
 T_jup = 3.002 
[ hide covariance matrix ]
Orbit Covariance (6×6)
  e q tp node peri i
e 7.545406006457998E-6 -1.360511255652932E-6 .0001744781140136358 -.0004187465075120679 .0004575829486834581 -6.243615749330322E-6
q -1.360511255652932E-6 2.507886189176858E-7 -3.135130665260585E-5 7.068394196522324E-5 -7.703251680463482E-5 1.017192816172257E-6
tp .0001744781140136358 -3.135130665260585E-5 .004036756001534193 -.009778644535697713 .01068969237339329 -.0001465308746478209
node -.0004187465075120679 7.068394196522324E-5 -.009778644535697713 .02751186611395701 -.03024280660667092 .0004428558253439633
peri .0004575829486834581 -7.703251680463482E-5 .01068969237339329 -.03024280660667092 .03325177014133857 -.0004879604257388881
i -6.243615749330322E-6 1.017192816172257E-6 -.0001465308746478209 .0004428558253439633 -.0004879604257388881 7.339755193026712E-6

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 29.685   .48863 1 autocmod 2.8

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