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JPL Small-Body Database Browser
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243508 (2009 WM71)
Classification: Main-belt Asteroid          SPK-ID: 2243508
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1174451182638945 6.3654e-08  
a 2.158728208759702 1.5348e-08 au
q 1.905196118982313 1.4232e-07 au
i 4.808698225739146 4.4198e-06 deg
node 76.64742217834984 8.0223e-05 deg
peri 249.2013212653654 8.3058e-05 deg
M 73.01071577109774 2.0025e-05 deg
tp 2458365.547818273399
(2018-Sep-04.04781827)
6.4626e-05 TDB
period 1158.498235885801
3.17
1.2355e-05
3.383e-08
d
yr
n .3107471283499537 3.314e-09 deg/d
Q 2.41226029853709 1.715e-08 au
  Orbit Determination Parameters
   # obs. used (total)      182  
   data-arc span      4826 days (13.21 yr)  
   first obs. used      2005-05-22  
   last obs. used      2018-08-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60305  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 09:33:16  

Additional Information
 Earth MOID = .898629 au 
 Jupiter MOID = 2.8543 au 
 T_jup = 3.685 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.4   n/a MPO454787  
diameter diameter 1.675 km 0.344 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.069   0.040 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

243508 (2009 WM71)          Discovered 2009-Nov-18 by Spacewatch at Kitt Peak
Reference: 20100626/Numbers.arcLast Updated: 2010-06-28

Alternate Designations
 2009 WM71 = 2005 MB55 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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