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187448 (2005 WL120)
Classification: Main-belt Asteroid          SPK-ID: 2187448
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2157342199802239 5.838e-08  
a 3.048788805780276 2.698e-08 au
q 2.39106073088083 1.9303e-07 au
i 5.652391354591352 4.0333e-06 deg
node 73.67194749316593 4.8568e-05 deg
peri 315.6718758741416 4.9874e-05 deg
M 335.8184571271045 1.371e-05 deg
tp 2459331.108350575832
(2021-Apr-26.60835058)
7.5247e-05 TDB
period 1944.417130637344
5.32
2.581e-05
7.066e-08
d
yr
n .1851454578997659 2.4576e-09 deg/d
Q 3.706516880679723 3.28e-08 au
  Orbit Determination Parameters
   # obs. used (total)      493  
   data-arc span      7751 days (21.22 yr)  
   first obs. used      1999-09-07  
   last obs. used      2020-11-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57065  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 11:56:47  

Additional Information
 Earth MOID = 1.39941 au 
 Jupiter MOID = 1.74988 au 
 T_jup = 3.194 
[ 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 15.46   n/a E2021B55  
diameter diameter 4.671 km 0.626 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.056   0.018 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

187448 (2005 WL120)          Discovered 2005-Nov-29 by Spacewatch at Kitt Peak
Reference: 20080520/Numbers.arcLast Updated: 2008-05-22

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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