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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 2458785.5 (2019-Oct-29.0) TDB
Reference: JPL 2 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .7240124895933935 0.0011104  
a 2.580206533958239 0.009411 au
q .7121047776419938 0.00026772 au
i .3544408485968138 0.00042799 deg
node 18.41507197609198 0.0034908 deg
peri 299.9815328553404 0.0033678 deg
M 11.26501792526585 0.067398 deg
tp 2458738.129330882178
(2019-Sep-11.62933088)
0.024247 TDB
period 1513.8405456211
4.14
8.2824
0.02268
d
yr
n .2378057590288011 0.0013011 deg/d
Q 4.448308290274485 0.016225 au
  Orbit Determination Parameters
   # obs. used (total)      17  
   data-arc span      4 days  
   first obs. used      2019-10-25  
   last obs. used      2019-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      8  
   norm. resid. RMS      .44234  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-17 05:08:42  

Additional Information
 Earth MOID = .00121796 au 
 Jupiter MOID = .89631 au 
 T_jup = 2.988 
[ hide covariance matrix ]
Orbit Covariance (6×6)
  e q tp node peri i
e 1.232949188083769E-6 -2.972417021849935E-7 2.692366936437009E-5 -2.014456944088264E-6 -6.847265387760622E-7 4.710486428622941E-7
q -2.972417021849935E-7 7.167162245875462E-8 -6.490747377225182E-6 4.762315919260604E-7 1.757440598584445E-7 -1.137309901478547E-7
tp 2.692366936437009E-5 -6.490747377225182E-6 .0005879277042512832 -4.402676469918764E-5 -1.490788075058555E-5 1.028551498191411E-5
node -2.014456944088264E-6 4.762315919260604E-7 -4.402676469918764E-5 1.218552417774771E-5 -8.743939436017333E-6 -6.019211214340333E-7
peri -6.847265387760622E-7 1.757440598584445E-7 -1.490788075058555E-5 -8.743939436017333E-6 1.134208246701102E-5 -4.467612259990625E-7
i 4.710486428622941E-7 -1.137309901478547E-7 1.028551498191411E-5 -6.019211214340333E-7 -4.467612259990625E-7 1.831771226352103E-7

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 29.7   .48863 MPO502128 autocmod 2.8

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