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JPL Small-Body Database Browser
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442419 (2011 US117)
Classification: Main-belt Asteroid          SPK-ID: 2442419
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 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .142052442513655 1.1092e-07  
a 2.623580758334211 6.3614e-08 au
q 2.250894703481009 3.0191e-07 au
i 13.42065611916396 1.118e-05 deg
node 211.1338354734237 4.3421e-05 deg
peri 182.701445145963 5.588e-05 deg
M 267.7762043330791 4.2375e-05 deg
tp 2458998.131310275143
(2020-May-28.63131028)
0.00019143 TDB
period 1552.172849359269
4.25
5.6453e-05
1.546e-07
d
yr
n .2319329320498079 8.4355e-09 deg/d
Q 2.996266813187413 7.2651e-08 au
  Orbit Determination Parameters
   # obs. used (total)      44  
   data-arc span      3431 days (9.39 yr)  
   first obs. used      2007-09-10  
   last obs. used      2017-01-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61698  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-09 12:28:50  

Additional Information
 Earth MOID = 1.25656 au 
 Jupiter MOID = 2.43507 au 
 T_jup = 3.351 
[ 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 17.6   n/a MPO402746  

442419 (2011 US117)          Discovered 2007-Sep-10 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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