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JPL Small-Body Database Browser
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249471 (2009 KM5)
Classification: Main-belt Asteroid          SPK-ID: 2249471
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1453528963269955 6.3941e-08  
a 2.630853827161146 2.3538e-08 au
q 2.248451603570313 1.7882e-07 au
i 11.81647344620717 6.7095e-06 deg
node 202.7772216472558 2.4237e-05 deg
peri 122.199893646774 3.3198e-05 deg
M 46.13609077471632 1.9391e-05 deg
tp 2458400.752295369702
(2018-Oct-09.25229537)
8.4182e-05 TDB
period 1558.631701546662
4.27
2.0917e-05
5.727e-08
d
yr
n .2309718194765091 3.0997e-09 deg/d
Q 3.01325605075198 2.6959e-08 au
  Orbit Determination Parameters
   # obs. used (total)      350  
   data-arc span      6234 days (17.07 yr)  
   first obs. used      2001-07-24  
   last obs. used      2018-08-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56191  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 09:56:07  

Additional Information
 Earth MOID = 1.2624 au 
 Jupiter MOID = 2.42607 au 
 T_jup = 3.355 
[ 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 15.8   n/a MPO454849  
diameter diameter 4.341 km 0.030 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.044   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

249471 (2009 KM5)          Discovered 2009-May-24 by CSS at Catalina
Reference: 20100824/Numbers.arcLast Updated: 2010-08-27

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