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164207 (2004 GU9)
Classification: Apollo [NEO, PHA]          SPK-ID: 2164207
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 45 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .13630347368211 7.0642e-07  
a 1.00132094947745 3.4358e-09 AU
q .8648374257930047 7.061e-07 AU
i 13.64904474918179 5.3962e-05 deg
node 38.68829290173159 4.0658e-05 deg
peri 280.3835337188231 5.5702e-05 deg
M 284.5651724030715 5.3571e-05 deg
tp 2456877.188065391692
(2014-Aug-07.68806539)
5.4298e-05 JED
period 365.9808661395205
1.00
1.8837e-06
5.157e-09
d
yr
n .9836579813512971 5.0628e-09 deg/d
Q 1.137804473161895 3.9041e-09 AU
  Orbit Determination Parameters
   # obs. used (total)      176  
   data-arc span      4718 days (12.92 yr)  
   first obs. used      2001-05-11  
   last obs. used      2014-04-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .59998  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Apr-17 16:26:43  

Additional Information
 Earth MOID = .000490692 AU 
 T_jup = 6.041 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 21.2 mag n/a MPO254178  

164207 (2004 GU9)          Discovered 2004-Apr-13 by LINEAR at Socorro (704)
Reference: 20070926/Numbers.arcLast Updated: 2007-09-30

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