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(2018 TU)
Classification: Apollo [NEO]          SPK-ID: 3831187
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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 3 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4372580399063102 0.00036079  
a 1.378063122679463 0.00065329 au
q .775493942789472 0.00012957 au
i 4.070263982633112 0.003683 deg
node 188.3494476586042 0.00023148 deg
peri 258.8066458376943 0.00023797 deg
M 97.50654656535538 0.31753 deg
tp 2459040.458221927435
(2020-Jul-09.95822193)
0.40737 TDB
period 590.8838138114759
1.62
0.42017
0.00115
d
yr
n .6092568311828213 0.00043324 deg/d
Q 1.980632302569454 0.00093894 au
  Orbit Determination Parameters
   # obs. used (total)      38  
   data-arc span      2 days  
   first obs. used      2018-10-03  
   last obs. used      2018-10-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      7  
   norm. resid. RMS      .51072  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 20:43:08  

Additional Information
 Earth MOID = .00469183 au 
 Jupiter MOID = 3.26191 au 
 T_jup = 4.699 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458395.5 (2018-Oct-04.0) TDB
Reference: JPL 3 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .436790662253709 0.00036235  
q .7745581630869161 0.0001277 au
tp 2458449.529816585243
(2018-Nov-27.02981659)
0.013464 TDB
node 188.5929284154701 0.00016813 deg
peri 258.7454108537883 0.00044472 deg
i 4.217347212025354 0.0034393 deg
  Orbit Determination Parameters
   # obs. used (total)      38  
   data-arc span      2 days  
   first obs. used      2018-10-03  
   last obs. used      2018-10-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      7  
   norm. resid. RMS      .51072  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 20:43:08  

Additional Information
 Jupiter MOID = 3.26191 au 
 T_jup = 4.699 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.312985916004749E-7 -4.626853121591587E-8 -4.878394508824951E-6 -5.97667826898335E-8 -1.407663603957471E-7 1.245273803932498E-6
q -4.626853121591587E-8 1.6306088637517E-8 1.718967344829897E-6 2.10296679547197E-8 4.934569296176006E-8 -4.389647068199033E-7
tp -4.878394508824951E-6 1.718967344829897E-6 .0001812699301702803 2.223743785622585E-6 5.255022298933052E-6 -4.625411307248922E-5
node -5.97667826898335E-8 2.10296679547197E-8 2.223743785622585E-6 2.826696161632665E-8 6.94654392419842E-8 -5.626291367609365E-7
peri -1.407663603957471E-7 4.934569296176006E-8 5.255022298933052E-6 6.94654392419842E-8 1.977788764697677E-7 -1.310482969571916E-6
i 1.245273803932498E-6 -4.389647068199033E-7 -4.625411307248922E-5 -5.626291367609365E-7 -1.310482969571916E-6 1.182898104326486E-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 27.5   .3338 MPO458797 autocmod 2.6n

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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