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JPL Small-Body Database Browser
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442537 (2011 WE151)
Classification: Main-belt Asteroid          SPK-ID: 2442537
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1705673773710757 7.2886e-08  
a 3.106601900525138 6.9e-08 au
q 2.576716961816566 2.2239e-07 au
i 11.723307814918 1.2805e-05 deg
node 336.31506353548 3.8554e-05 deg
peri 81.13681817496636 5.4397e-05 deg
M 156.1107821476955 3.5229e-05 deg
tp 2457733.224194207694
(2016-Dec-10.72419421)
0.00019293 TDB
period 1999.985432075034
5.48
6.6632e-05
1.824e-07
d
yr
n .1800013111227971 5.997e-09 deg/d
Q 3.636486839233711 8.0769e-08 au
  Orbit Determination Parameters
   # obs. used (total)      85  
   data-arc span      4072 days (11.15 yr)  
   first obs. used      2007-01-27  
   last obs. used      2018-03-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60684  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 15:14:08  

Additional Information
 Earth MOID = 1.62014 au 
 Jupiter MOID = 1.89024 au 
 T_jup = 3.166 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457452.5 (2016-Mar-05.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1718264735315055 7.2908e-08  
q 2.572280605671146 2.2276e-07 au
tp 2457733.665706132487
(2016-Dec-11.16570613)
0.00019114 TDB
node 336.3522812511369 3.8533e-05 deg
peri 81.0200389615913 5.41e-05 deg
i 11.72937132961971 1.281e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      85  
   data-arc span      4072 days (11.15 yr)  
   first obs. used      2007-01-27  
   last obs. used      2018-03-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60684  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 15:14:08  

Additional Information
 Jupiter MOID = 1.89024 au 
 T_jup = 3.166 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.315566743961767E-15 -1.570593973755009E-14 -2.238513860675222E-12 3.155667251010603E-14 -6.430491434523524E-13 -3.025914767831295E-14
q -1.570593973755009E-14 4.962093251101739E-14 6.967109454856822E-12 -9.992246061961459E-14 1.869511369370651E-12 9.976732250639802E-14
tp -2.238513860675222E-12 6.967109454856822E-12 3.653269058771578E-8 3.003517606560888E-12 7.275786898506003E-9 2.25294108140377E-11
node 3.155667251010603E-14 -9.992246061961459E-14 3.003517606560888E-12 1.484805013305815E-9 -1.453492128775918E-9 -3.56381264683514E-11
peri -6.430491434523524E-13 1.869511369370651E-12 7.275786898506003E-9 -1.453492128775918E-9 2.926792566297418E-9 4.021653961990607E-11
i -3.025914767831295E-14 9.976732250639802E-14 2.25294108140377E-11 -3.56381264683514E-11 4.021653961990607E-11 1.640850998522056E-10

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 16.2   n/a MPO437721  

442537 (2011 WE151)          Discovered 2007-Jan-27 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-09-02

[ show close-approach data ]
Alternate Designations
 2011 WE151 = 2007 EC193 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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