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58112 (1981 EC3)
Classification: Main-belt Asteroid          SPK-ID: 2058112
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .244704086441026 4.034e-08  
a 2.358435486364723 1.0584e-08 au
q 1.781316685243747 9.3389e-08 au
i 7.729588698381252 4.7862e-06 deg
node 233.3608621765762 3.6252e-05 deg
peri 41.87128156890816 3.8254e-05 deg
M 226.5398940558538 1.5351e-05 deg
tp 2459490.937186879819
(2021-Oct-03.43718688)
5.8453e-05 TDB
period 1322.922576958128
3.62
8.905e-06
2.438e-08
d
yr
n .2721247685013954 1.8318e-09 deg/d
Q 2.935554287485699 1.3173e-08 au
  Orbit Determination Parameters
   # obs. used (total)      803  
   data-arc span      14231 days (38.96 yr)  
   first obs. used      1981-02-14  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47818  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 12:22:53  

Additional Information
 Earth MOID = .773945 au 
 Jupiter MOID = 2.20164 au 
 T_jup = 3.500 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.7   n/a MPO459250  
diameter diameter 1.554 km 0.310 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.319   0.077 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

58112 (1981 EC3)          Discovered 1981-Mar-02 by Bus, S. J. at Siding Spring
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1981 EC3 = 2000 SZ7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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