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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 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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458782.5 (2019-Oct-26.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .650528161240027 0.00015493  
q .8512089541553837 2.3095e-05 au
tp 2458837.739635790050
(2019-Dec-20.23963579)
0.0018916 TDB
node 228.8591199475837 0.00065587 deg
peri 231.1222487959948 0.00070746 deg
i 10.46812681285584 0.0019469 deg
  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
 Jupiter MOID = 1.35023 au 
 T_jup = 3.157 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.400308667506682E-8 -3.577341548354125E-9 -2.92985283678492E-7 -1.015381751391206E-7 1.08708843329628E-7 3.016211717461168E-7
q -3.577341548354125E-9 5.333627548552817E-10 4.364670344286168E-8 1.514004584126676E-8 -1.624165965025597E-8 -4.495907097044676E-8
tp -2.92985283678492E-7 4.364670344286168E-8 3.578004387577872E-6 1.238725553903544E-6 -1.323206975071996E-6 -3.681016154678212E-6
node -1.015381751391206E-7 1.514004584126676E-8 1.238725553903544E-6 4.301694024304744E-7 -4.616272235111432E-7 -1.276327821184807E-6
peri 1.08708843329628E-7 -1.624165965025597E-8 -1.323206975071996E-6 -4.616272235111432E-7 5.005013154371184E-7 1.367468134177796E-6
i 3.016211717461168E-7 -4.495907097044676E-8 -3.681016154678212E-6 -1.276327821184807E-6 1.367468134177796E-6 3.790533699957182E-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 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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