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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 46 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1362648868805763 6.1977e-07  
a 1.001268127986814 3.293e-09 AU
q .8648304397895641 6.1905e-07 AU
i 13.64834571448586 4.6538e-05 deg
node 38.67583056204558 3.4723e-05 deg
peri 280.3328721511422 4.9386e-05 deg
M 121.3536531028836 4.8659e-05 deg
tp 2456877.139997750150
(2014-Aug-07.63999775)
4.972e-05 JED
period 365.951907292774
1.00
1.8053e-06
4.943e-09
d
yr
n .9837358210897031 4.853e-09 deg/d
Q 1.137705816184063 3.7417e-09 AU
  Orbit Determination Parameters
   # obs. used (total)      175  
   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      .59174  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-11 11:22:05  

Additional Information
 Earth MOID = .0013605 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 21.1 mag n/a MPO291377  

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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