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305508 (2008 EE146)
Classification: Outer Main-belt Asteroid          SPK-ID: 2305508
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03610575217341011 7.4748e-08  
a 3.226572389872155 5.1128e-08 au
q 3.110074566793863 2.5223e-07 au
i 8.05833918423806 5.9185e-06 deg
node 140.8165333848468 4.8039e-05 deg
peri 50.4147070083124 9.9823e-05 deg
M 328.2258552630734 8.8582e-05 deg
tp 2458787.345187070292
(2019-Oct-30.84518707)
0.00052207 TDB
period 2116.949737033633
5.80
5.0317e-05
1.378e-07
d
yr
n .1700559978832792 4.042e-09 deg/d
Q 3.343070212950447 5.2974e-08 au
  Orbit Determination Parameters
   # obs. used (total)      206  
   data-arc span      5313 days (14.55 yr)  
   first obs. used      2004-08-22  
   last obs. used      2019-03-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58735  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 10:30:24  

Additional Information
 Earth MOID = 2.11957 au 
 Jupiter MOID = 1.64361 au 
 T_jup = 3.171 
[ 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 15.4   n/a MPO433969  
diameter diameter 7.031 km 0.379 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.023   0.002 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

305508 (2008 EE146)          Discovered 2008-Mar-11 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

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