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JPL Small-Body Database Browser
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59731 (1999 LL2)
Classification: Main-belt Asteroid          SPK-ID: 2059731
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1768413154358573 3.7401e-08  
a 2.650844746638759 1.5547e-08 au
q 2.182065874626929 9.9817e-08 au
i 11.02420940932089 7.7276e-06 deg
node 199.8356535844966 2.2809e-05 deg
peri 91.39337660067933 3.3117e-05 deg
M 277.4778649280291 2.3343e-05 deg
tp 2459361.862282998999
(2021-May-27.36228300)
0.00010319 TDB
period 1576.430636049132
4.32
1.3868e-05
3.797e-08
d
yr
n .2283639963393733 2.009e-09 deg/d
Q 3.11962361865059 1.8296e-08 au
  Orbit Determination Parameters
   # obs. used (total)      651  
   data-arc span      9423 days (25.80 yr)  
   first obs. used      1994-03-16  
   last obs. used      2020-01-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60174  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 12:53:13  

Additional Information
 Earth MOID = 1.20039 au 
 Jupiter MOID = 2.15797 au 
 T_jup = 3.342 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.3   n/a MPO379021  

59731 (1999 LL2)          Discovered 1999-Jun-08 by LINEAR at Socorro
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 LL2 = 2000 UK20 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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