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312454 (2008 KO40)
Classification: Outer Main-belt Asteroid          SPK-ID: 2312454
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09155713720134205 5.3257e-08  
a 3.23122889292084 5.2442e-08 au
q 2.935386825842746 1.777e-07 au
i 10.06859817286646 6.1137e-06 deg
node 92.41742235002687 3.3452e-05 deg
peri 258.5740249500409 4.7338e-05 deg
M 268.1622178504909 3.6754e-05 deg
tp 2459541.713845765558
(2021-Nov-23.21384577)
0.00022315 TDB
period 2121.534077972532
5.81
5.1648e-05
1.414e-07
d
yr
n .1696885304543578 4.131e-09 deg/d
Q 3.527070959998933 5.7244e-08 au
  Orbit Determination Parameters
   # obs. used (total)      193  
   data-arc span      4902 days (13.42 yr)  
   first obs. used      2005-12-24  
   last obs. used      2019-05-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .65677  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 06:01:57  

Additional Information
 Earth MOID = 1.95094 au 
 Jupiter MOID = 1.87982 au 
 T_jup = 3.156 
[ 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 15.7   n/a MPO476403  
diameter diameter 4.433 km 1.951 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.039   0.029 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

312454 (2008 KO40)          Discovered 2008-May-28 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20120109/Numbers.arcLast Updated: 2012-01-11

[ show close-approach data ]
Alternate Designations
 2008 KO40 = 2005 YU19 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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