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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 ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1878836127038341 5.3448e-08  
a 3.007117508453787 4.2402e-08 au
q 2.442129407140537 1.6174e-07 au
i 3.305582192911089 8.5291e-06 deg
node 167.1130682709291 0.00014915 deg
peri 299.8814428339173 0.00015301 deg
M 199.0168714436389 3.1613e-05 deg
tp 2459852.229889810533
(2022-Sep-29.72988981)
0.00017233 TDB
period 1904.688789946342
5.21
4.0285e-05
1.103e-07
d
yr
n .189007255096063 3.9976e-09 deg/d
Q 3.572105609767037 5.0368e-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 = 1.46097 au 
 Jupiter MOID = 1.58128 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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