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390905 (2005 EA84)
Classification: Main-belt Asteroid          SPK-ID: 2390905
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1521436741486827 8.4169e-08  
a 2.681133532388013 2.7807e-08 au
q 2.273216025887264 2.3146e-07 au
i 12.71259556873144 1.0971e-05 deg
node 338.6130728429508 2.3383e-05 deg
peri 140.2014503012122 3.6645e-05 deg
M 207.6908587424687 2.7584e-05 deg
tp 2459678.921436436594
(2022-Apr-09.42143644)		 0.00012516 TDB
period 1603.526322193725
4.39		 2.4946e-05
6.83e-08		 d
yr
n .2245052014534425 3.4927e-09 deg/d
Q 3.089051038888762 3.2038e-08 au
   Orbit Determination Parameters
   # obs. used (total)      168  
   data-arc span      5671 days (15.53 yr)  
   first obs. used      2005-03-04  
   last obs. used      2020-09-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55886  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 16:37:29  

Additional Information
 Earth MOID = 1.30303 au 
 Jupiter MOID = 2.00017 au 
 T_jup = 3.325 
[ 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 16.8   n/a MPO437600  
diameter diameter 3.093 km 0.918 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.035   0.027 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

390905 (2005 EA84)          Discovered 2005-Mar-04 by CSS at Catalina
Reference: Last Updated: 2014-04-17

[ show close-approach data ]
Alternate Designations
 2005 EA84 = 2008 YG154 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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