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102555 (1999 UG22)
Classification: Main-belt Asteroid          SPK-ID: 2102555
[ 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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07567419379381675 4.3221e-08  
a 2.577887371059773 1.2874e-08 au
q 2.382807822563563 1.1535e-07 au
i 2.643406321877632 4.3901e-06 deg
node 49.05685785826143 9.7339e-05 deg
peri 67.98606405468918 0.00010123 deg
M 323.7588922024706 2.8875e-05 deg
tp 2459352.692516789459
(2021-May-18.19251679)		 0.00012152 TDB
period 1511.799980019931
4.14		 1.1325e-05
3.101e-08		 d
yr
n .2381267394878877 1.7838e-09 deg/d
Q 2.772966919555983 1.3848e-08 au
   Orbit Determination Parameters
   # obs. used (total)      481  
   data-arc span      7757 days (21.24 yr)  
   first obs. used      1999-10-10  
   last obs. used      2021-01-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56616  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 08:31:46  

Additional Information
 Earth MOID = 1.4005 au 
 Jupiter MOID = 2.27718 au 
 T_jup = 3.421 
[ 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 16.1   n/a MPO449619  

102555 (1999 UG22)          Discovered 1999-Oct-31 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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Alternate Designations
 1999 UG22 = 2001 EN4 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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