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(2001 GR2)
Classification: Apollo [NEO, PHA]          SPK-ID: 3074752
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6217982865237407 8.4372e-08  
a 1.862468068244152 8.0425e-09 au
q .7043886147047569 1.546e-07 au
i 11.82802053421842 3.4961e-05 deg
node 190.2417077992957 2.6773e-05 deg
peri 99.32013599955795 2.9627e-05 deg
M 166.79232239954 1.8263e-05 deg
tp 2458570.364551536846
(2019-Mar-27.86455154)
4.4701e-05 TDB
period 928.3926215488826
2.54
6.0135e-06
1.646e-08
d
yr
n .3877669766476541 2.5117e-09 deg/d
Q 3.020547521783547 1.3043e-08 au
  Orbit Determination Parameters
   # obs. used (total)      78  
   data-arc span      3850 days (10.54 yr)  
   first obs. used      2001-04-05  
   last obs. used      2011-10-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .38553  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 09:16:25  

Additional Information
 Earth MOID = .012823 au 
 Jupiter MOID = 2.34251 au 
 T_jup = 3.711 
[ 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 21.6   n/a MPO211634  

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