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JPL Small-Body Database Browser
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52258 (1981 EE44)
Classification: Main-belt Asteroid          SPK-ID: 2052258
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1269631856675122 3.4571e-08  
a 2.743966260301348 1.5809e-08 au
q 2.395583562529319 9.6671e-08 au
i 8.274182901707483 5.2881e-06 deg
node 208.0703937038212 2.649e-05 deg
peri 223.1675884561043 3.4453e-05 deg
M 235.839893346093 2.2342e-05 deg
tp 2459173.093157089540
(2020-Nov-19.59315709)
0.00010512 TDB
period 1660.223578309465
4.55
1.4347e-05
3.928e-08
d
yr
n .2168382648598285 1.8739e-09 deg/d
Q 3.092348958073377 1.7816e-08 au
  Orbit Determination Parameters
   # obs. used (total)      726  
   data-arc span      14049 days (38.46 yr)  
   first obs. used      1981-03-06  
   last obs. used      2019-08-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57139  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 02:20:45  

Additional Information
 Earth MOID = 1.4168 au 
 Jupiter MOID = 2.23533 au 
 T_jup = 3.322 
[ 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 15.2   n/a MPO351203  

52258 (1981 EE44)          Discovered 1981-Mar-06 by Bus, S. J. at Siding Spring
Reference: 20030216/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1981 EE44 = 2001 QU129 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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