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201100 (2002 GU128)
Classification: Main-belt Asteroid          SPK-ID: 2201100
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08592420249183161 1.6914e-07  
a 2.551257470838763 1.9399e-08 au
q 2.332042707305614 4.3991e-07 au
i 2.87693470479691 4.6153e-06 deg
node 296.7764047330238 0.0001862 deg
peri 81.20147373558223 0.00019009 deg
M 340.1795318312672 3.493e-05 deg
tp 2459082.448549105606
(2020-Aug-20.94854911)
0.00014404 TDB
period 1488.434956574706
4.08
1.6976e-05
4.648e-08
d
yr
n .2418647844904543 2.7585e-09 deg/d
Q 2.770472234371911 2.1065e-08 au
  Orbit Determination Parameters
   # obs. used (total)      445  
   data-arc span      6779 days (18.56 yr)  
   first obs. used      2002-04-04  
   last obs. used      2020-10-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5306  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 05:07:37  

Additional Information
 Earth MOID = 1.33566 au 
 Jupiter MOID = 2.62422 au 
 T_jup = 3.433 
[ 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 15.8   n/a MPO436979  

201100 (2002 GU128)          Discovered 2002-Apr-12 by LINEAR at Socorro
Reference: 20081212/Numbers.arcLast Updated: 2008-12-12

[ show close-approach data ]
Alternate Designations
 2002 GU128 = 2004 XE20 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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