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(2018 UG)
Classification: Apollo [NEO]          SPK-ID: 3831874
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 2458409.5 (2018-Oct-18.0) TDB
Reference: JPL 1 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5384028783587144 0.0010328  
a 2.192298324678895 0.0049517 au
q 1.011958596450791 2.2064e-05 au
i 3.916305323324544 0.0055708 deg
node 11.53265199899276 0.0044939 deg
peri .9611277980792874 0.0075676 deg
M 2.993864406051698 0.0094503 deg
tp 2458399.639986011967
(2018-Oct-08.13998601)
0.0040287 TDB
period 1185.626519530018
3.25
4.0169
0.011
d
yr
n .3036369329379575 0.0010287 deg/d
Q 3.372638052907 0.0076176 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.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      8  
   norm. resid. RMS      .38394  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-19 08:42:08  

Additional Information
 Earth MOID = .0117125 au 
 Jupiter MOID = 2.08818 au 
 T_jup = 3.465 
[ hide covariance matrix ]
Orbit Covariance (6×6)
  e q tp node peri i
e 1.066718745656562E-6 2.211471778454791E-8 -2.534987022351265E-6 -3.406254448519979E-6 -3.191431979858645E-6 5.685410339012138E-6
q 2.211471778454791E-8 4.868019149529617E-10 -3.555932954106271E-8 -8.68098537845042E-8 -2.942369797638065E-8 1.133357290553842E-7
tp -2.534987022351265E-6 -3.555932954106271E-8 1.62304799026484E-5 -1.617983189956016E-6 2.963596489351617E-5 -1.623183914986775E-5
node -3.406254448519979E-6 -8.68098537845042E-8 -1.617983189956016E-6 2.019525669631913E-5 -1.086995047348096E-5 -1.554504959470334E-5
peri -3.191431979858645E-6 -2.942369797638065E-8 2.963596489351617E-5 -1.086995047348096E-5 5.726898680258276E-5 -2.290874209088377E-5
i 5.685410339012138E-6 1.133357290553842E-7 -1.623183914986775E-5 -1.554504959470334E-5 -2.290874209088377E-5 3.103378241931236E-5

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 0.0241208973963008 0.023999129183628 0.0242426608165809 7.57894880704254 7.56435971983141 2458406.440759163 2.02151452923914 6048.20791403921 360.673478560811 -0.070003444792692 350.525447438822 T 1 CATAB v2.0e-lin.ifort 2018-Oct-19 08:42:11 2018-Dec-11 17:24
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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