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58137 (1981 EJ44)
Classification: Main-belt Asteroid          SPK-ID: 2058137
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07397480902167475 4.6855e-08  
a 3.12295875914474 2.4839e-08 au
q 2.891938481354442 1.5375e-07 au
i 8.919321533314738 5.2985e-06 deg
node 193.0182933770743 2.7917e-05 deg
peri 134.5763558754099 4.1452e-05 deg
M 315.0262875192341 3.1771e-05 deg
tp 2459648.328013048415
(2022-Mar-09.82801305)
0.00017879 TDB
period 2015.801669390787
5.52
2.4049e-05
6.584e-08
d
yr
n .1785889978495745 2.1306e-09 deg/d
Q 3.353979036935038 2.6676e-08 au
  Orbit Determination Parameters
   # obs. used (total)      751  
   data-arc span      14732 days (40.33 yr)  
   first obs. used      1981-03-07  
   last obs. used      2021-07-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56062  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 22:10:13  

Additional Information
 Earth MOID = 1.8894 au 
 Jupiter MOID = 1.94456 au 
 T_jup = 3.193 
[ 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 14.54   n/a E2021B10  
diameter diameter 5.290 km 0.174 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.069   0.018 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

58137 (1981 EJ44)          Discovered 1981-Mar-07 by Bus, S. J. at Siding Spring
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1981 EJ44 = 2000 SS108 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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