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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07315880433530893 5.2177e-08  
a 3.123220352014366 2.7838e-08 au
q 2.894729285385293 1.663e-07 au
i 8.917909691137311 5.5702e-06 deg
node 193.0313190317268 3.3602e-05 deg
peri 134.664224237073 4.7435e-05 deg
M 172.6859340099277 3.3276e-05 deg
tp 2457633.432409314625
(2016-Sep-01.93240931)
0.0001853 TDB
period 2016.054953420354
5.52
2.6955e-05
7.38e-08
d
yr
n .1785665610896366 2.3874e-09 deg/d
Q 3.35171141864344 2.9875e-08 au
  Orbit Determination Parameters
   # obs. used (total)      664  
   data-arc span      13879 days (38.00 yr)  
   first obs. used      1981-03-07  
   last obs. used      2019-03-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56479  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 03:33:17  

Additional Information
 Earth MOID = 1.89202 au 
 Jupiter MOID = 1.94643 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 14.4   n/a MPO468480  
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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