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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 ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1272852945556461 4.3931e-08  
a 3.439608739664477 4.5204e-08 au
q 3.00179712808011 1.5587e-07 au
i 10.22880967158308 6.7177e-06 deg
node 19.3237378115615 3.0328e-05 deg
peri 259.1557760579177 4.3842e-05 deg
M 216.7114795953226 3.426e-05 deg
tp 2459927.908111167609
(2022-Dec-14.40811117)
0.00022615 TDB
period 2330.032573980299
6.38
4.5932e-05
1.258e-07
d
yr
n .1545042777599571 3.0458e-09 deg/d
Q 3.877420351248845 5.0957e-08 au
  Orbit Determination Parameters
   # obs. used (total)      193  
   data-arc span      7804 days (21.37 yr)  
   first obs. used      1998-09-19  
   last obs. used      2020-01-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51123  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 17:22:49  

Additional Information
 Earth MOID = 2.00867 au 
 Jupiter MOID = 1.38512 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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