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216723 (2005 GX9)
Classification: Main-belt Asteroid          SPK-ID: 2216723
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1560811240144885 4.0548e-08  
a 2.422809552442312 1.3774e-08 au
q 2.044654714224076 1.0386e-07 au
i 5.954773344355167 4.1359e-06 deg
node 78.45412667155743 4.3764e-05 deg
peri 158.0338392485272 4.6267e-05 deg
M 28.96535023928903 1.5311e-05 deg
tp 2459089.670946001309
(2020-Aug-28.17094600)
5.8365e-05 TDB
period 1377.454755765737
3.77
1.1746e-05
3.216e-08
d
yr
n .2613515968441907 2.2287e-09 deg/d
Q 2.800964390660548 1.5923e-08 au
  Orbit Determination Parameters
   # obs. used (total)      321  
   data-arc span      9025 days (24.71 yr)  
   first obs. used      1995-10-27  
   last obs. used      2020-07-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .60362  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:56:02  

Additional Information
 Earth MOID = 1.03264 au 
 Jupiter MOID = 2.2024 au 
 T_jup = 3.488 
[ 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 16.95   n/a E2021B55  

216723 (2005 GX9)          Discovered 2005-Apr-01 by Reddy, V. at Goodricke-Pigott
Reference: 20090707/Numbers.arcLast Updated: 2009-07-09

Alternate Designations
 2005 GX9 = 2005 FK8 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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