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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 ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08081030294840706 6.1008e-08  
a 3.087563358694443 4.4031e-08 au
q 2.838056428305944 2.0148e-07 au
i 10.53006642318379 6.9863e-06 deg
node 94.99393445320142 4.307e-05 deg
peri 235.9569461716355 6.5632e-05 deg
M 282.7662212942194 5.153e-05 deg
tp 2459425.635163060774
(2021-Jul-30.13516306)
0.00028549 TDB
period 1981.628521438945
5.43
4.239e-05
1.161e-07
d
yr
n .1816687618820649 3.8861e-09 deg/d
Q 3.337070289082942 4.7589e-08 au
  Orbit Determination Parameters
   # obs. used (total)      207  
   data-arc span      5341 days (14.62 yr)  
   first obs. used      2005-09-13  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60456  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 13:44:36  

Additional Information
 Earth MOID = 1.8422 au 
 Jupiter MOID = 1.94542 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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