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JPL Small-Body Database Browser
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58128 (1981 EJ37)
Classification: Main-belt Asteroid          SPK-ID: 2058128
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ 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 .09173109545464297 3.9147e-08  
a 2.381660650862451 1.2026e-08 au
q 2.16318831035762 9.4851e-08 au
i 6.633678313354359 5.6403e-06 deg
node 330.7077317763878 3.6339e-05 deg
peri 107.9256059501505 4.9597e-05 deg
M 218.810103242217 3.5454e-05 deg
tp 2459127.025451127296
(2020-Oct-04.52545113)
0.00013405 TDB
period 1342.512224730965
3.68
1.0168e-05
2.784e-08
d
yr
n .2681539827856264 2.031e-09 deg/d
Q 2.600132991367282 1.3129e-08 au
  Orbit Determination Parameters
   # obs. used (total)      598  
   data-arc span      14100 days (38.60 yr)  
   first obs. used      1981-02-09  
   last obs. used      2019-09-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63934  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 02:27:00  

Additional Information
 Earth MOID = 1.18962 au 
 Jupiter MOID = 2.57432 au 
 T_jup = 3.523 
[ 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 15.8   n/a MPO341075  

58128 (1981 EJ37)          Discovered 1981-Mar-01 by Bus, S. J. at Siding Spring
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1981 EJ37 = 2001 RA80 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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