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118976 (2000 WL181)
Classification: Main-belt Asteroid          SPK-ID: 2118976
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1164189557539044 6.2934e-08  
a 3.008346048052517 2.4405e-08 au
q 2.658117542591858 1.9877e-07 au
i 11.41180714724377 6.3067e-06 deg
node 311.1059539107335 1.9586e-05 deg
peri 9.822646841587341 2.8938e-05 deg
M 23.5323790674805 1.8124e-05 deg
tp 2459075.918530658071
(2020-Aug-14.41853066)
9.6556e-05 TDB
period 1905.85613271342
5.22
2.3192e-05
6.35e-08
d
yr
n .1888914875686121 2.2986e-09 deg/d
Q 3.358574553513177 2.7246e-08 au
  Orbit Determination Parameters
   # obs. used (total)      697  
   data-arc span      7847 days (21.48 yr)  
   first obs. used      1999-07-14  
   last obs. used      2021-01-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46558  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 09:21:12  

Additional Information
 Earth MOID = 1.6438 au 
 Jupiter MOID = 1.94394 au 
 T_jup = 3.210 
[ 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 14.92   n/a E2021B55  
diameter diameter 3.349 km 0.843 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.228   0.129 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

118976 (2000 WL181)          Discovered 2000-Nov-30 by LONEOS at Anderson Mesa
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21

[ show close-approach data ]
Alternate Designations
 2000 WL181 = 2002 AG109 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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