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(2017 GR4)
Classification: Mars-crossing Asteroid          SPK-ID: 3773759
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5058964166476418 1.8128e-05  
a 2.948281632825878 0.00012769 au
q 1.456756519511208 9.7361e-06 au
i 17.36642916847461 0.0003219 deg
node 202.2356115237601 0.00027499 deg
peri 21.29644611639499 0.00049642 deg
M 260.0214036845462 0.01679 deg
tp 2459714.018875264587
(2022-May-14.51887526)
0.1196 TDB
period 1849.063718717924
5.06
0.12013
0.0003289
d
yr
n .194693128395603 1.2648e-05 deg/d
Q 4.439806746140547 0.00019229 au
  Orbit Determination Parameters
   # obs. used (total)      51  
   data-arc span      63 days  
   first obs. used      2017-04-01  
   last obs. used      2017-06-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      5  
   norm. resid. RMS      .50777  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 18:59:34  

Additional Information
 Earth MOID = .461637 au 
 Jupiter MOID = .616697 au 
 T_jup = 3.004 
[ 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 20.2   n/a MPO411587  

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