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52564 (1997 GN21)
Classification: Main-belt Asteroid          SPK-ID: 2052564
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1598319467649537 4.8196e-08  
a 2.329783144364769 9.123e-09 au
q 1.957409368860773 1.131e-07 au
i 4.740539313520221 5.8128e-06 deg
node 22.33864210071965 4.8804e-05 deg
peri 199.1802020489422 5.2263e-05 deg
M 232.2084229323409 2.1487e-05 deg
tp 2459661.574818747517
(2022-Mar-23.07481875)
7.9033e-05 TDB
period 1298.887912316981
3.56
7.6293e-06
2.089e-08
d
yr
n .2771601741660873 1.628e-09 deg/d
Q 2.702156919868764 1.0581e-08 au
  Orbit Determination Parameters
   # obs. used (total)      721  
   data-arc span      8720 days (23.87 yr)  
   first obs. used      1997-04-02  
   last obs. used      2021-02-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52084  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 10:46:11  

Additional Information
 Earth MOID = .948907 au 
 Jupiter MOID = 2.27444 au 
 T_jup = 3.550 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.96   n/a MPCxxxxx  

52564 (1997 GN21)          Discovered 1997-Apr-06 by LINEAR at Socorro
Reference: 20030216/Numbers.arcLast Updated: 2004-04-19

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