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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .142118533335513 1.1085e-07  
a 2.622692239910569 6.2565e-08 au
q 2.249959065384048 3.0171e-07 au
i 13.42062696404677 1.1179e-05 deg
node 211.1215810364392 4.3429e-05 deg
peri 182.8907349986351 5.5909e-05 deg
M .4257637054957521 4.4496e-05 deg
tp 2458998.665213398928
(2020-May-29.16521340)
0.00019171 TDB
period 1551.384413137635
4.25
5.5513e-05
1.52e-07
d
yr
n .2320508037539899 8.3034e-09 deg/d
Q 2.99542541443709 7.1457e-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 = 1.25632 au 
 Jupiter MOID = 2.43778 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 17.4   n/a MPO477088  

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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