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85446 (1997 GK9)
Classification: Main-belt Asteroid          SPK-ID: 2085446
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06113300817536638 4.1987e-08  
a 2.257344453275317 8.5618e-09 au
q 2.119346196358619 9.5341e-08 au
i 8.001073360876886 4.8636e-06 deg
node 355.8860789563895 2.7339e-05 deg
peri 117.4742168511415 4.7963e-05 deg
M 12.98220882848979 3.7414e-05 deg
tp 2458955.827396051355
(2020-Apr-16.32739605)
0.00012876 TDB
period 1238.782832257285
3.39
7.0478e-06
1.93e-08
d
yr
n .2906078374883638 1.6534e-09 deg/d
Q 2.395342710192015 9.0852e-09 au
  Orbit Determination Parameters
   # obs. used (total)      836  
   data-arc span      8330 days (22.81 yr)  
   first obs. used      1997-04-03  
   last obs. used      2020-01-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54639  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 20:32:34  

Additional Information
 Earth MOID = 1.14805 au 
 Jupiter MOID = 2.64231 au 
 T_jup = 3.607 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.9   n/a MPO453284  

85446 (1997 GK9)          Discovered 1997-Apr-03 by LINEAR at Socorro
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

Alternate Designations
 1997 GK9 = 2002 XU16 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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