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JPL Small-Body Database Browser
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359806 (2011 US251)
Classification: Main-belt Asteroid          SPK-ID: 2359806
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1864685738811271 5.3667e-08  
a 3.008227485265513 4.0667e-08 au
q 2.447287596178044 1.6227e-07 au
i 3.294928979578563 8.5432e-06 deg
node 167.6842007543062 0.00015004 deg
peri 298.3631381181954 0.00015396 deg
M 124.8231886437891 3.1937e-05 deg
tp 2457939.719510844580
(2017-Jul-05.21951084)
0.00016473 TDB
period 1905.743465461355
5.22
3.8645e-05
1.058e-07
d
yr
n .1889026548034622 3.8306e-09 deg/d
Q 3.569167374352983 4.825e-08 au
  Orbit Determination Parameters
   # obs. used (total)      172  
   data-arc span      6372 days (17.45 yr)  
   first obs. used      2001-12-17  
   last obs. used      2019-05-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58812  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 06:45:04  

Additional Information
 Earth MOID = 1.4664 au 
 Jupiter MOID = 1.58899 au 
 T_jup = 3.221 
[ 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 17.0   n/a MPO440611  

359806 (2011 US251)          Discovered 2001-Dec-17 by LINEAR at Socorro
Reference: 20130327/Numbers.arcLast Updated: 2013-03-29

[ show close-approach data ]
Alternate Designations
 2011 US251 = 2001 YN145 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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