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120259 (2004 GB20)
Classification: Main-belt Asteroid          SPK-ID: 2120259
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1668204421753954 4.7907e-08  
a 2.570051996410242 1.5512e-08 au
q 2.141314785955328 1.2533e-07 au
i 2.91641960514085 8.3988e-06 deg
node 7.188767001259409 0.00010186 deg
peri 273.3583069389905 0.00010547 deg
M 273.2291181235997 2.5282e-05 deg
tp 2459363.229437414211
(2021-May-28.72943741)		 0.00010566 TDB
period 1504.912646331318
4.12		 1.3625e-05
3.73e-08		 d
yr
n .2392165424867745 2.1657e-09 deg/d
Q 2.998789206865156 1.81e-08 au
   Orbit Determination Parameters
   # obs. used (total)      298  
   data-arc span      6706 days (18.36 yr)  
   first obs. used      2001-09-22  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59076  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 06:17:16  

Additional Information
 Earth MOID = 1.12734 au 
 Jupiter MOID = 2.14669 au 
 T_jup = 3.409 
[ 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 16.6   n/a MPO426758  

120259 (2004 GB20)          Discovered 2004-Apr-15 by Yeung, W. K. Y. at Desert Eagle
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21

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Alternate Designations
 2004 GB20 = 2001 ST285 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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