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300968 (2008 EN3)
Classification: Outer Main-belt Asteroid          SPK-ID: 2300968
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1271780128188849 4.429e-08  
a 3.440034115418235 5.3762e-08 au
q 3.002537412590173 1.559e-07 au
i 10.22923060531334 1.0946e-05 deg
node 19.3462892699205 3.1772e-05 deg
peri 258.9956933431587 5.7575e-05 deg
M 155.091064156338 4.7185e-05 deg
tp 2457596.515919959849
(2016-Jul-27.01591996)
0.00031264 TDB
period 2330.464819366473
6.38
5.4632e-05
1.496e-07
d
yr
n .1544756209183473 3.6213e-09 deg/d
Q 3.877530818246296 6.0599e-08 au
  Orbit Determination Parameters
   # obs. used (total)      161  
   data-arc span      7387 days (20.22 yr)  
   first obs. used      1998-09-19  
   last obs. used      2018-12-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5026  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 10:27:21  

Additional Information
 Earth MOID = 2.00889 au 
 Jupiter MOID = 1.38406 au 
 T_jup = 3.100 
[ 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 15.1   n/a MPO423151  
diameter diameter 5.621 km 0.249 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.047   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

300968 (2008 EN3)          Discovered 2008-Mar-01 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20111012/Numbers.arcLast Updated: 2011-10-13

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