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JPL Small-Body Database Browser
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146223 (2000 WL4)
Classification: Main-belt Asteroid          SPK-ID: 2146223
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1114639017578448 1.6007e-07  
a 2.978331367113292 3.7417e-08 au
q 2.646354932207069 4.9541e-07 au
i 8.842480098958569 6.2628e-06 deg
node 289.6967776202606 6.667e-05 deg
peri 59.44057084231359 7.2353e-05 deg
M 261.8098061804499 2.7283e-05 deg
tp 2459112.563200729278
(2020-Sep-20.06320073)
0.00014391 TDB
period 1877.40491276876
5.14
3.5379e-05
9.686e-08
d
yr
n .1917540523898379 3.6135e-09 deg/d
Q 3.310307802019516 4.1587e-08 au
  Orbit Determination Parameters
   # obs. used (total)      370  
   data-arc span      6370 days (17.44 yr)  
   first obs. used      2000-11-05  
   last obs. used      2018-04-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58583  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 08:22:34  

Additional Information
 Earth MOID = 1.65161 au 
 Jupiter MOID = 2.09741 au 
 T_jup = 3.233 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456413.5 (2013-May-01.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1133838025723004 1.5964e-07  
q 2.636949764956476 4.9307e-07 au
tp 2457242.247354832612
(2015-Aug-07.74735483)
0.00013804 TDB
node 289.785320253633 6.6756e-05 deg
peri 60.40139531004867 7.2291e-05 deg
i 8.840366138838988 6.2645e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      370  
   data-arc span      6370 days (17.44 yr)  
   first obs. used      2000-11-05  
   last obs. used      2018-04-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58583  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 08:22:34  

Additional Information
 Jupiter MOID = 2.09741 au 
 T_jup = 3.233 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.548352924478799E-14 -7.857969544818796E-14 2.403852637018535E-12 -5.290027955647047E-14 -2.29006370659209E-13 -7.257047982116224E-14
q -7.857969544818796E-14 2.431143613893714E-13 -7.361214356734692E-12 1.742098989398381E-13 6.275998869567115E-13 2.261581639834054E-13
tp 2.403852637018535E-12 -7.361214356734692E-12 1.905464626510717E-8 -1.890327775174269E-11 3.948644269432758E-9 -1.440521805853176E-11
node -5.290027955647047E-14 1.742098989398381E-13 -1.890327775174269E-11 4.456311254896012E-9 -4.406649495062956E-9 1.382425268274614E-10
peri -2.29006370659209E-13 6.275998869567115E-13 3.948644269432758E-9 -4.406649495062956E-9 5.22603575551604E-9 -1.376154031743864E-10
i -7.257047982116224E-14 2.261581639834054E-13 -1.440521805853176E-11 1.382425268274614E-10 -1.376154031743864E-10 3.924456646548859E-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 15.1   n/a MPO475267  

146223 (2000 WL4)          Discovered 2000-Nov-19 by LINEAR at Socorro
Reference: 20070106/Numbers.arcLast Updated: 2007-01-09
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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