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JPL Small-Body Database Browser
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215012 (2008 EG103)
Classification: Main-belt Asteroid          SPK-ID: 2215012
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08589463185901763 4.8085e-08  
a 3.180309297018458 4.4368e-08 au
q 2.907137800753246 1.5958e-07 au
i 6.61633741551302 5.3828e-06 deg
node 93.7063400232185 4.9031e-05 deg
peri 281.1332989867634 5.9244e-05 deg
M 202.0481323692274 3.203e-05 deg
tp 2459909.418053430235
(2022-Nov-25.91805343)
0.00018516 TDB
period 2071.583604188652
5.67
4.335e-05
1.187e-07
d
yr
n .173780097154706 3.6365e-09 deg/d
Q 3.45348079328367 4.8179e-08 au
  Orbit Determination Parameters
   # obs. used (total)      294  
   data-arc span      6223 days (17.04 yr)  
   first obs. used      2002-02-12  
   last obs. used      2019-02-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53421  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 11:06:14  

Additional Information
 Earth MOID = 1.91788 au 
 Jupiter MOID = 2.01935 au 
 T_jup = 3.184 
[ 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 MPO437029  
diameter diameter 4.887 km 0.311 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.074   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

215012 (2008 EG103)          Discovered 2008-Mar-05 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20090509/Numbers.arcLast Updated: 2009-05-11

[ show close-approach data ]
Alternate Designations
 2008 EG103 = 2002 CE302 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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