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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1668482611292265 4.7896e-08  
a 2.569718066146056 1.4861e-08 au
q 2.140965075217228 1.2543e-07 au
i 2.916579886714126 8.3625e-06 deg
node 7.188928530032358 0.0001008 deg
peri 273.409904172417 0.00010421 deg
M 321.0324011406208 2.4932e-05 deg
tp 2459363.365009390140
(2021-May-28.86500939)
0.00010427 TDB
period 1504.619352915002
4.12
1.3052e-05
3.573e-08
d
yr
n .2392631726439962 2.0755e-09 deg/d
Q 2.998471057074884 1.7341e-08 au
  Orbit Determination Parameters
   # obs. used (total)      312  
   data-arc span      6759 days (18.51 yr)  
   first obs. used      2001-09-22  
   last obs. used      2020-03-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58361  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 17:58:25  

Additional Information
 Earth MOID = 1.12511 au 
 Jupiter MOID = 2.14634 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 16.68   n/a E2021B55  

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

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