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JPL Small-Body Database Browser
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243295 (2008 EP9)
Classification: Main-belt Asteroid          SPK-ID: 2243295
[ 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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1897550152106864 6.9545e-08  
a 3.196083624897339 4.7102e-08 au
q 2.589610728040319 2.132e-07 au
i 12.72508961754203 5.8722e-06 deg
node 142.592891160724 3.2847e-05 deg
peri 98.59256267662411 3.6477e-05 deg
M 258.2209233025791 1.7199e-05 deg
tp 2459190.540243993092
(2020-Dec-07.04024399)		 0.00010714 TDB
period 2087.015275929457
5.71		 4.6136e-05
1.263e-07		 d
yr
n .1724951437356745 3.8132e-09 deg/d
Q 3.80255652175436 5.604e-08 au
   Orbit Determination Parameters
   # obs. used (total)      173  
   data-arc span      5368 days (14.70 yr)  
   first obs. used      2003-04-01  
   last obs. used      2017-12-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60379  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 09:32:04  

Additional Information
 Earth MOID = 1.61567 au 
 Jupiter MOID = 1.49935 au 
 T_jup = 3.129 
[ 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 MPO433594  
diameter diameter 4.491 km 1.683 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.038   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

243295 (2008 EP9)          Discovered 2008-Mar-01 by Spacewatch at Kitt Peak
Reference: 20100626/Numbers.arcLast Updated: 2010-06-28

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