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(2018 GR1)
Classification: Apollo [NEO]          SPK-ID: 3802433
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 2458220.5 (2018-Apr-12.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .55250079568148 0.0016475  
a 1.502757135752885 0.0040789 au
q .6724826225333943 0.00065053 au
i 11.46151230987341 0.030877 deg
node 32.7513572924158 0.0068844 deg
peri 261.2317952334514 0.0015459 deg
M 327.3336524246794 0.16675 deg
tp 2458281.556190415667
(2018-Jun-12.05619042)
0.063077 TDB
period 672.8707119447349
1.84
2.7395
0.0075
d
yr
n .5350210576999641 0.0021783 deg/d
Q 2.333031648972376 0.0063325 au
  Orbit Determination Parameters
   # obs. used (total)      48  
   data-arc span      11 days  
   first obs. used      2018-04-10  
   last obs. used      2018-04-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      8  
   norm. resid. RMS      .49014  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 20:26:51  

Additional Information
 Earth MOID = .0151348 au 
 Jupiter MOID = 2.96334 au 
 T_jup = 4.341 
[ 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 24.2   n/a MPO450737  

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