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JPL Small-Body Database Browser
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(2019 UR2)
Classification: Apollo [NEO]          SPK-ID: 3879298
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 .6507774513563198 0.00015676  
a 2.43789570002563 0.0010272 au
q .8513681496904192 2.3449e-05 au
i 10.46249677367684 0.0019735 deg
node 228.8501512109207 0.00065856 deg
peri 231.0904440923829 0.00073675 deg
M 42.15222085962016 0.026151 deg
tp 2458837.705747016135
(2019-Dec-20.20574702)
0.0018944 TDB
period 1390.340292374327
3.81
0.87872
0.002406
d
yr
n .2589294160390164 0.00016365 deg/d
Q 4.02442325036084 0.0016957 au
  Orbit Determination Parameters
   # obs. used (total)      96  
   data-arc span      31 days  
   first obs. used      2019-10-19  
   last obs. used      2019-11-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      6  
   norm. resid. RMS      .36704  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-24 04:53:11  

Additional Information
 Earth MOID = .00377114 au 
 Jupiter MOID = 1.35018 au 
 T_jup = 3.157 
[ 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 22.2   .42336 E2019-WC0 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-Nov-18 06:58 < 00:01 Earth 0.046133166250211 0.0461026109344651 0.0461637215412804 13.4489419874698 13.4446468177471 2458805.790513409 0.0560157099261061 1522.73988804893 11.656377808272 -0.388646354298325 3873.6194921651 T 17 CATAB v2.0f-lin.ifort 2019-Nov-24 04:53:14 2019-Nov-24 04:53
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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