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(2018 GP)
Classification: Apollo [NEO]          SPK-ID: 3802402
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 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6362501540431238 0.00058747  
a 2.792392035411776 0.0045357 au
q 1.015732172732241 9.4223e-06 au
i 5.408313894080046 0.0033708 deg
node 23.63217228274344 0.00021833 deg
peri 180.4096610367947 0.0010218 deg
M 206.6738146510485 0.50371 deg
tp 2459926.400077705661
(2022-Dec-12.90007771)
4.1534 TDB
period 1704.366591911856
4.67
4.1526
0.01137
d
yr
n .2112221641214955 0.00051464 deg/d
Q 4.56905189809131 0.0074216 au
  Orbit Determination Parameters
   # obs. used (total)      21  
   data-arc span      5 days  
   first obs. used      2018-04-08  
   last obs. used      2018-04-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .53906  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Apr-23 07:30:42  

Additional Information
 Earth MOID = .0117508 au 
 Jupiter MOID = .402312 au 
 T_jup = 2.989 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458218.5 (2018-Apr-10.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6384006189400198 0.00058514  
q 1.013854484446938 8.7443e-06 au
tp 2458222.423430317437
(2018-Apr-13.92343032)
0.0011623 TDB
node 23.65028497200716 9.8289e-05 deg
peri 180.2118355183969 0.0014884 deg
i 5.413997362839353 0.0033695 deg
  Orbit Determination Parameters
   # obs. used (total)      21  
   data-arc span      5 days  
   first obs. used      2018-04-08  
   last obs. used      2018-04-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .53906  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Apr-23 07:30:42  

Additional Information
 Jupiter MOID = .402312 au 
 T_jup = 2.989 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.423883545117391E-7 5.116287932377133E-9 6.769825689902243E-7 5.694369236550947E-8 8.668368882513365E-7 1.971581682206211E-6
q 5.116287932377133E-9 7.646356379059375E-11 1.010493796573373E-8 8.515755209296834E-10 1.293858360380756E-8 2.946071436944688E-8
tp 6.769825689902243E-7 1.010493796573373E-8 1.350943337256907E-6 1.119636167740753E-7 1.729887866765544E-6 3.89890652739788E-6
node 5.694369236550947E-8 8.515755209296834E-10 1.119636167740753E-7 9.660725254457328E-9 1.431963041489332E-7 3.27729340392045E-7
peri 8.668368882513365E-7 1.293858360380756E-8 1.729887866765544E-6 1.431963041489332E-7 2.215296467212083E-6 4.992463640086831E-6
i 1.971581682206211E-6 2.946071436944688E-8 3.89890652739788E-6 3.27729340392045E-7 4.992463640086831E-6 1.135335261680419E-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 27.3   n/a MPO445224  

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