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249656 (1999 UU11)
Classification: Main-belt Asteroid          SPK-ID: 2249656
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1590364094074047 6.7976e-08  
a 3.183369998430901 3.2762e-08 au
q 2.677098264065195 2.1751e-07 au
i 4.067325670415823 8.6952e-06 deg
node 214.6795145065998 7.3714e-05 deg
peri 136.7720352071935 7.7129e-05 deg
M 264.8561690987189 2.5889e-05 deg
tp 2459548.786103346015
(2021-Nov-30.28610335)
0.00015406 TDB
period 2074.574834067435
5.68
3.2026e-05
8.768e-08
d
yr
n .1735295319736333 2.6789e-09 deg/d
Q 3.689641732796606 3.7973e-08 au
  Orbit Determination Parameters
   # obs. used (total)      309  
   data-arc span      7506 days (20.55 yr)  
   first obs. used      1999-10-03  
   last obs. used      2020-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51762  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 13:46:15  

Additional Information
 Earth MOID = 1.67351 au 
 Jupiter MOID = 1.77588 au 
 T_jup = 3.175 
[ 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 15.6   n/a MPO258026  

249656 (1999 UU11)          Discovered 1999-Oct-29 by Spacewatch at Kitt Peak
Reference: 20100923/Numbers.arcLast Updated: 2010-09-27

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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