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(2018 UG)
Classification: Apollo [NEO]          SPK-ID: 3831874
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ hide orbit diagram ]

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.


Orbital Elements at Epoch 2458409.5 (2018-Oct-18.0) TDB
Reference: JPL 2 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5384104672006887 0.0010328  
a 2.192335052610705 0.004952 au
q 1.011958912674129 2.2064e-05 au
i 3.916321772882806 0.0055709 deg
node 11.53253852148191 0.004494 deg
peri .9613061716658718 0.0075676 deg
M 2.99376656751305 0.0094504 deg
tp 2458399.640060461518
(2018-Oct-08.14006046)		 0.0040287 TDB
period 1185.656314146826
3.25		 4.0172
0.011		 d
yr
n .3036293027790675 0.0010287 deg/d
Q 3.372711192547282 0.0076181 au
   Orbit Determination Parameters
   # obs. used (total)      23  
   data-arc span      2 days  
   first obs. used      2018-10-17  
   last obs. used      2018-10-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      8  
   norm. resid. RMS      .38436  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 20:45:21  

Additional Information
 Earth MOID = .0117129 au 
 Jupiter MOID = 2.08811 au 
 T_jup = 3.465 
[ 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   .31053 MPO458817 autocmod 2.6n

[ 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-Oct-14 22:35 00:02 Earth 0.0241212605096676 0.0239994888665043 0.0242430273604196 7.57903156932354 7.56444286155707 2458406.440771409 2.02154758431475 6048.37919679625 360.678694108796 -0.0700200450489424 350.521911227284 T 2 CATAB v2.0g-lin.ifort 2021-Apr-15 20:45:22 2021-Apr-15 20:45
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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