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(2018 LR2)
Classification: Amor [NEO]          SPK-ID: 3825131
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 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5273619436379514 0.00035548  
a 2.158964816546467 0.0016329 au
q 1.020408934646569 4.3194e-06 au
i 11.92232684598297 0.0051427 deg
node 80.71567277502633 0.00034635 deg
peri 174.8041362622353 0.000352 deg
M 224.9595152123208 0.25537 deg
tp 2459435.138568721430
(2021-Aug-08.63856872)
1.315 TDB
period 1158.688707210497
3.17
1.3145
0.003599
d
yr
n .3106960461077484 0.00035249 deg/d
Q 3.297520698446364 0.0024941 au
  Orbit Determination Parameters
   # obs. used (total)      53  
   data-arc span      7 days  
   first obs. used      2018-06-08  
   last obs. used      2018-06-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .42349  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Jun-19 01:32:43  

Additional Information
 Earth MOID = .00645063 au 
 Jupiter MOID = 1.77906 au 
 T_jup = 3.481 
[ 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 26.0   n/a E2018M27  

[ 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
2018-Jun-09 23:45 < 00:01 Earth 0.0100878815109564 0.0100717144540171 0.0101040482867173 9.84683349606588 9.81997334025176 2458279.489639328 0.0259904450137237 801.780451526488 2.66909139983698 -0.727561107556645 1512.53921269004 T 7 CATAB v2.0e-lin.ifort 2018-Jun-19 01:32:47 2018-Dec-11 17:21
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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