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JPL Small-Body Database Browser
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58135 (1981 EK42)
Classification: Main-belt Asteroid          SPK-ID: 2058135
[ 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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1060098213527001 5.1786e-08  
a 3.121337634098617 2.521e-08 au
q 2.790445189126363 1.6576e-07 au
i 4.931485333992658 6.1963e-06 deg
node 196.157262962864 6.034e-05 deg
peri 304.4553969810186 6.7094e-05 deg
M 7.741208066862665 2.706e-05 deg
tp 2458557.187246912005
(2019-Mar-14.68724691)		 0.00015143 TDB
period 2014.232271888486
5.51		 2.4402e-05
6.681e-08		 d
yr
n .1787281462144753 2.1652e-09 deg/d
Q 3.452230079070871 2.7882e-08 au
   Orbit Determination Parameters
   # obs. used (total)      641  
   data-arc span      13954 days (38.20 yr)  
   first obs. used      1981-02-12  
   last obs. used      2019-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60299  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 03:33:16  

Additional Information
 Earth MOID = 1.80744 au 
 Jupiter MOID = 1.58895 au 
 T_jup = 3.202 
[ 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 14.7   n/a MPO474462  
diameter diameter 5.292 km 0.533 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.076   0.021 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

58135 (1981 EK42)          Discovered 1981-Mar-02 by Bus, S. J. at Siding Spring
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1981 EK42 = 2000 SV256 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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