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JPL Small-Body Database Browser
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442399 (2011 UL49)
Classification: Main-belt Asteroid          SPK-ID: 2442399
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1059077002083788 9.4932e-08  
a 2.770422881915118 7.5558e-08 au
q 2.477013765886819 3.0121e-07 au
i 4.259449524216923 9.3766e-06 deg
node 214.8335773426465 0.00012271 deg
peri 186.0523343609285 0.00013269 deg
M 226.8849083946359 6.0767e-05 deg
tp 2459223.290988346321
(2021-Jan-08.79098835)
0.00030238 TDB
period 1684.292540393224
4.61
6.8904e-05
1.886e-07
d
yr
n .2137395917670885 8.744e-09 deg/d
Q 3.063831997943417 8.356e-08 au
  Orbit Determination Parameters
   # obs. used (total)      55  
   data-arc span      4167 days (11.41 yr)  
   first obs. used      2006-10-20  
   last obs. used      2018-03-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59482  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 14:27:16  

Additional Information
 Earth MOID = 1.48454 au 
 Jupiter MOID = 2.31461 au 
 T_jup = 3.325 
[ 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 17.2   n/a MPO440831  

442399 (2011 UL49)          Discovered 2008-Jan-13 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2015-09-02
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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