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JPL Small-Body Database Browser
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(2019 UB2)
Classification: Apollo [NEO]          SPK-ID: 3879281
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458780.5 (2019-Oct-24.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5980610401384449 0.0018856  
a 2.496387046184724 0.011833 au
q 1.003395212755348 4.8699e-05 au
i 1.264838773811058 0.0029249 deg
node 32.27286379192186 0.001346 deg
peri 24.14440408669504 0.00043948 deg
M 354.592730224023 0.04073 deg
tp 2458802.139232057710
(2019-Nov-14.63923206)
0.0091484 TDB
period 1440.67595358104
3.94
10.243
0.02804
d
yr
n .2498827020088452 0.0017766 deg/d
Q 3.9893788796141 0.018909 au
  Orbit Determination Parameters
   # obs. used (total)      28  
   data-arc span      15 days  
   first obs. used      2019-10-20  
   last obs. used      2019-11-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      8  
   norm. resid. RMS      .37343  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-04 04:55:56  

Additional Information
 Earth MOID = .0167404 au 
 Jupiter MOID = 1.39687 au 
 T_jup = 3.194 
[ hide covariance matrix ]
Orbit Covariance (6×6)
  e q tp node peri i
e 3.555591479848949E-6 9.182735319158279E-8 -1.724967879738881E-5 2.536079307706742E-6 7.989770415683926E-7 5.515165843170536E-6
q 9.182735319158279E-8 2.37159985640658E-9 -4.455132202376812E-7 6.549526113229972E-8 2.061197212705652E-8 1.4243569434047E-7
tp -1.724967879738881E-5 -4.455132202376812E-7 8.369398566910603E-5 -1.230271982827607E-5 -3.866604329635295E-6 -2.675640118690727E-5
node 2.536079307706742E-6 6.549526113229972E-8 -1.230271982827607E-5 1.811787417154599E-6 5.680587778419013E-7 3.933563653625471E-6
peri 7.989770415683926E-7 2.061197212705652E-8 -3.866604329635295E-6 5.680587778419013E-7 1.931445323558184E-7 1.239526545584267E-6
i 5.515165843170536E-6 1.4243569434047E-7 -2.675640118690727E-5 3.933563653625471E-6 1.239526545584267E-6 8.554867138658124E-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 25.9   .40108 MPO502107 autocmod 2.8

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