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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1274896997080227 3.2381e-08  
a 2.743850693930682 1.165e-08 au
q 2.39403799291781 8.8734e-08 au
i 8.273748507144234 4.1349e-06 deg
node 208.0577040102811 2.3922e-05 deg
peri 223.288526102927 2.9542e-05 deg
M 5.900112364355691 1.5848e-05 deg
tp 2459173.291981002073
(2020-Nov-19.79198100)
7.3076e-05 TDB
period 1660.118695099337
4.55
1.0573e-05
2.895e-08
d
yr
n .2168519642979254 1.3811e-09 deg/d
Q 3.093663394943555 1.3135e-08 au
  Orbit Determination Parameters
   # obs. used (total)      986  
   data-arc span      14592 days (39.95 yr)  
   first obs. used      1981-03-06  
   last obs. used      2021-02-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52617  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 10:43:51  

Additional Information
 Earth MOID = 1.41501 au 
 Jupiter MOID = 2.23401 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 15.23   n/a MPCxxxxx  

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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