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37228 (2000 WE146)
Classification: Main-belt Asteroid          SPK-ID: 2037228
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03400070542431454 6.4245e-08  
a 2.582270925047693 2.0609e-08 au
q 2.494471891999374 1.6093e-07 au
i 22.51432712741596 5.8858e-06 deg
node 106.3546783682952 1.3642e-05 deg
peri 359.2018443168772 9.0627e-05 deg
M 202.9374719502023 8.9116e-05 deg
tp 2459661.758423879054
(2022-Mar-23.25842388)
0.00037785 TDB
period 1515.657716403133
4.15
1.8144e-05
4.968e-08
d
yr
n .2375206460561096 2.8434e-09 deg/d
Q 2.670069958096011 2.1309e-08 au
  Orbit Determination Parameters
   # obs. used (total)      701  
   data-arc span      7753 days (21.23 yr)  
   first obs. used      1998-04-28  
   last obs. used      2019-07-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56315  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 04:27:28  

Additional Information
 Earth MOID = 1.51131 au 
 Jupiter MOID = 2.4727 au 
 T_jup = 3.316 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457101.5 (2015-Mar-20.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03498518204656375 6.4745e-08  
q 2.490382469124286 1.6305e-07 au
tp 2456621.430144166806
(2013-Nov-24.93014417)
0.00035304 TDB
node 106.3835956775165 1.3654e-05 deg
peri 356.7866780198374 8.7501e-05 deg
i 22.50756538983493 5.8847e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      701  
   data-arc span      7753 days (21.23 yr)  
   first obs. used      1998-04-28  
   last obs. used      2019-07-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56315  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 04:27:28  

Additional Information
 Jupiter MOID = 2.4727 au 
 T_jup = 3.316 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.191959281296702E-15 -1.04864833413922E-14 -3.002331446075023E-12 3.095347874080365E-14 -9.086492473275738E-13 1.185556021767511E-14
q -1.04864833413922E-14 2.658682598764303E-14 9.863173208951776E-12 -7.984077263531206E-14 2.867251199654417E-12 -3.000780544125413E-14
tp -3.002331446075023E-12 9.863173208951776E-12 1.246361280122178E-7 -1.401485084955289E-10 3.052182225611121E-8 -8.175118368913804E-11
node 3.095347874080365E-14 -7.984077263531206E-14 -1.401485084955289E-10 1.864395112775367E-10 -2.068848761356569E-10 -4.315652068544953E-12
peri -9.086492473275738E-13 2.867251199654417E-12 3.052182225611121E-8 -2.068848761356569E-10 7.65646379186295E-9 -1.63783116150284E-11
i 1.185556021767511E-14 -3.000780544125413E-14 -8.175118368913804E-11 -4.315652068544953E-12 -1.63783116150284E-11 3.463023237849127E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.8   n/a MPO290734  
diameter diameter 2.779 km 0.771 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.331   0.185 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

37228 (2000 WE146)          Discovered 2000-Nov-23 by JPL/NEAT at Haleakala
Reference: 20020227/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 2000 WE146 = 1999 LO29 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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