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58125 (1981 EO31)
Classification: Main-belt Asteroid          SPK-ID: 2058125
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .128942394856564 4.7648e-08  
a 2.669158007788988 1.3516e-08 au
q 2.3249903820141 1.284e-07 au
i 3.339073592125932 5.5066e-06 deg
node 175.423148850356 6.7787e-05 deg
peri 33.87429170163021 6.9888e-05 deg
M 18.81685760204449 1.7352e-05 deg
tp 2459117.246126251383
(2020-Sep-24.74612625)
7.6587e-05 TDB
period 1592.794885488517
4.36
1.2098e-05
3.312e-08
d
yr
n .2260178025933242 1.7167e-09 deg/d
Q 3.013325633563876 1.5258e-08 au
  Orbit Determination Parameters
   # obs. used (total)      605  
   data-arc span      14313 days (39.19 yr)  
   first obs. used      1981-02-12  
   last obs. used      2020-04-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .60649  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 11:28:08  

Additional Information
 Earth MOID = 1.31996 au 
 Jupiter MOID = 1.94651 au 
 T_jup = 3.368 
[ 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 15.92   n/a E2021B10  

58125 (1981 EO31)          Discovered 1981-Mar-02 by Bus, S. J. at Siding Spring
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1981 EO31 = 2001 XW166 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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