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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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Orbit Diagram
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Note: This Java-based orbit viewer will eventually be retired.

Note: Make sure you have Java enabled on your browser to see the applet. This applet is provided as a 3D orbit visualization tool. The applet 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. For accurate long-term ephemerides, please instead use our Horizons system.

Note: If the applet is not working, here are some notes that might help.
Orbit Viewer

Additional Notes: the orbits shown in the applet are color coded. The planets are white lines, and the asteroid/comet is a blue line. The bright white line indicates the portion of the orbit that is above the ecliptic plane, and the darker portion is below the ecliptic plane. Likewise for the asteroid/comet orbit, the light blue indicates the portion above the ecliptic plane, and the dark blue the portion below the ecliptic plane.

Orbit Viewer applet originally written and kindly provided by Osamu Ajiki (AstroArts), and further modified by Ron Baalke (JPL).


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6507731070021642 0.00015482  
a 2.437867158137356 0.0010145 au
q .8513687731777726 2.3163e-05 au
i 10.46244322606573 0.0019492 deg
node 228.8501697114345 0.00065032 deg
peri 231.0904284087248 0.00072808 deg
M 42.15294690407287 0.025827 deg
tp 2458837.705801925456
(2019-Dec-20.20580193)
0.0018707 TDB
period 1390.315876140398
3.81
0.86781
0.002376
d
yr
n .258933963265515 0.00016162 deg/d
Q 4.024365543096939 0.0016746 au
  Orbit Determination Parameters
   # obs. used (total)      98  
   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      .35802  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-10 06:01:06  

Additional Information
 Earth MOID = .00377111 au 
 Jupiter MOID = 1.35023 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 0.046132884995827 0.0461027022131613 0.0461630677544536 13.4488614222676 13.4445662006162 2458805.790512699 0.0557041989588079 1504.17601432416 11.5771637354892 -0.396332946449285 3946.77737335643 T 18 CATAB v2.0f-lin.ifort 2020-May-10 06:01:11 2020-May-10 06:01
2181-Feb-22 15:08 7_02:32 Earth 0.151265679162287 0.151053115507948 0.163458947379171 13.3398452130849 13.3385247001467 2517707.130683385 10231.6099302349 2715965.79646646 47.1119485831886 -86.9649562165488 508453.499488688 T 18 CATAB v2.0f-lin.ifort 2020-May-10 06:01:11 2020-May-10 06:01
2186-Aug-02 21:37 4_13:39 Jupiter 1.82480166720025 1.77905041096599 1.87096477690238 6.89739948448499 6.82977121925011 2519694.400945238 6579.29399589993 2672769.73371473 205.515175526773 -34.6233869124608 162444.777214057 T 18 CATAB v2.0f-lin.ifort 2020-May-10 06:01:11 2020-May-10 06:01
2198-Apr-23 20:36 9_07:32 Jupiter 1.46840941133578 1.38552827657795 1.55749472864144 5.15833434341314 5.04527039058502 2523976.358244038 13411.7707441377 6452818.20024765 173.053870009736 -52.7372324564856 248370.356062924 T 18 CATAB v2.0f-lin.ifort 2020-May-10 06:01:11 2020-May-10 06:01
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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