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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 ]

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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 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 
[ 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 25.9   .40108 MPO502107 autocmod 2.8

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2019-Oct-29 22:20 < 00:01 Earth 0.0388226667880264 0.0384960487467467 0.0391492740715489 8.38535439358333 8.37716564234676 2458786.430784652 0.215939042626476 16254.9083666955 6.09447898829257 0.00458165289451664 217.236575217704 T 5 CATAB v2.0f-lin.ifort 2019-Nov-04 04:55:58 2019-Nov-04 04:56
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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