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243300 (2008 EN123)
Classification: Main-belt Asteroid          SPK-ID: 2243300
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04250011512946875 5.9976e-08  
a 3.171114286361009 3.4512e-08 au
q 3.036341564101963 2.0842e-07 au
i 12.2466086989279 5.6226e-06 deg
node 101.8556232551039 2.6474e-05 deg
peri 183.4823266325998 8.5973e-05 deg
M 321.4610995835159 7.7765e-05 deg
tp 2459221.307126837795
(2021-Jan-06.80712684)
0.00044447 TDB
period 2062.605959240235
5.65
3.3672e-05
9.219e-08
d
yr
n .1745364878770188 2.8493e-09 deg/d
Q 3.305887008620055 3.5979e-08 au
  Orbit Determination Parameters
   # obs. used (total)      320  
   data-arc span      9270 days (25.38 yr)  
   first obs. used      1995-01-24  
   last obs. used      2020-06-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54404  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-24 04:34:59  

Additional Information
 Earth MOID = 2.01997 au 
 Jupiter MOID = 1.82835 au 
 T_jup = 3.165 
[ 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 15.2   n/a MPO433594  
diameter diameter 3.994 km 1.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.092   0.022 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

243300 (2008 EN123)          Discovered 2008-Mar-09 by Spacewatch at Kitt Peak
Reference: 20100626/Numbers.arcLast Updated: 2010-06-28

[ show close-approach data ]
Alternate Designations
 2008 EN123 = 2002 FO32 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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