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JPL Small-Body Database Browser
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249475 (2009 KL23)
Classification: Main-belt Asteroid          SPK-ID: 2249475
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08064691869070319 7.1159e-08  
a 3.086317960167471 5.5684e-08 au
q 2.837415926580188 2.1745e-07 au
i 10.53034277942421 7.1765e-06 deg
node 94.99313906051293 4.7319e-05 deg
peri 236.3090784637525 7.0093e-05 deg
M 209.6822984644379 5.5515e-05 deg
tp 2459427.426770481007
(2021-Jul-31.92677048)		 0.0003138 TDB
period 1980.429678820855
5.42		 5.3597e-05
1.467e-07		 d
yr
n .1817787341049865 4.9195e-09 deg/d
Q 3.335219993754754 6.0175e-08 au
   Orbit Determination Parameters
   # obs. used (total)      191  
   data-arc span      4950 days (13.55 yr)  
   first obs. used      2005-09-13  
   last obs. used      2019-04-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6213  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 12:19:02  

Additional Information
 Earth MOID = 1.84093 au 
 Jupiter MOID = 1.94675 au 
 T_jup = 3.195 
[ 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 15.4   n/a MPO300178  
diameter diameter 3.270 km 1.139 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.137   0.050 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

249475 (2009 KL23)          Discovered 2009-May-27 by Spacewatch at Kitt Peak
Reference: 20100824/Numbers.arcLast Updated: 2010-08-27

[ show close-approach data ]
Alternate Designations
 2009 KL23 = 2005 TF68 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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