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120949 (1998 UU3)
Classification: Main-belt Asteroid          SPK-ID: 2120949
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2156945783742754 2.6017e-08  
a 2.339336346713912 9.4663e-09 au
q 1.834754179733837 6.2037e-08 au
i 2.621547708525683 4.3984e-06 deg
node 22.10564567027104 6.7825e-05 deg
peri 272.1954822620307 6.8733e-05 deg
M 112.267160496929 1.141e-05 deg
tp 2458792.943646894462
(2019-Nov-05.44364689)
4.0664e-05 TDB
period 1306.885169880174
3.58
7.9326e-06
2.172e-08
d
yr
n .275464140459263 1.672e-09 deg/d
Q 2.843918513693987 1.1508e-08 au
  Orbit Determination Parameters
   # obs. used (total)      636  
   data-arc span      8188 days (22.42 yr)  
   first obs. used      1998-08-17  
   last obs. used      2021-01-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57468  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 09:26:18  

Additional Information
 Earth MOID = .819113 au 
 Jupiter MOID = 2.36267 au 
 T_jup = 3.532 
[ 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 16.5   n/a MPO234002  

120949 (1998 UU3)          Discovered 1998-Oct-20 by ODAS at Caussols
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

[ show close-approach data ]
Alternate Designations
 1998 UU3 = 2005 NC21 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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