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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2157727647987901 3.2856e-08  
a 2.338993166319512 1.1399e-08 au
q 1.834302143977275 7.9277e-08 au
i 2.621719378975796 5.4003e-06 deg
node 22.10744263603438 8.2077e-05 deg
peri 272.1533386968193 8.3101e-05 deg
M 57.20232762707529 1.2621e-05 deg
tp 2458792.887711045551
(2019-Nov-05.38771105)
4.553e-05 TDB
period 1306.597600553322
3.58
9.5516e-06
2.615e-08
d
yr
n .2755247674169509 2.0142e-09 deg/d
Q 2.84368418866175 1.3859e-08 au
  Orbit Determination Parameters
   # obs. used (total)      504  
   data-arc span      7572 days (20.73 yr)  
   first obs. used      1998-08-17  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60508  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 06:58:25  

Additional Information
 Earth MOID = .820619 au 
 Jupiter MOID = 2.36337 au 
 T_jup = 3.533 
[ 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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