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312452 (2008 KE29)
Classification: Main-belt Asteroid          SPK-ID: 2312452
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03217759987433346 6.7445e-08  
a 3.070101656574541 4.9996e-08 au
q 2.971313153895757 1.7555e-07 au
i 12.31343816517973 6.1207e-06 deg
node 97.30243195787847 2.957e-05 deg
peri 31.84395152149676 0.0001175 deg
M 186.0011532263144 0.00011535 deg
tp 2459950.167181507909
(2023-Jan-05.66718151)
0.0006352 TDB
period 1964.841673850396
5.38
4.7996e-05
1.314e-07
d
yr
n .1832208695444285 4.4756e-09 deg/d
Q 3.168890159253325 5.1605e-08 au
  Orbit Determination Parameters
   # obs. used (total)      177  
   data-arc span      5046 days (13.82 yr)  
   first obs. used      2005-10-26  
   last obs. used      2019-08-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59191  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 06:01:56  

Additional Information
 Earth MOID = 1.99349 au 
 Jupiter MOID = 1.95102 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 16.1   n/a MPO440462  
diameter diameter 4.382 km 0.818 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.028   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

312452 (2008 KE29)          Discovered 2008-May-29 by Spacewatch at Kitt Peak
Reference: 20120109/Numbers.arcLast Updated: 2012-01-11

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