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52557 (1997 EK41)
Classification: Main-belt Asteroid          SPK-ID: 2052557
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 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1196541394798127 3.3606e-08  
a 2.254790443477314 8.201e-09 au
q 1.984995433255731 7.5289e-08 au
i 3.362833147309114 3.837e-06 deg
node 239.7093643669337 6.4541e-05 deg
peri 9.04561573078303 6.6702e-05 deg
M 290.2578931164807 1.7749e-05 deg
tp 2459440.079838282823
(2021-Aug-13.57983828)
6.1222e-05 TDB
period 1236.681047302827
3.39
6.747e-06
1.847e-08
d
yr
n .2911017362036492 1.5882e-09 deg/d
Q 2.524585453698897 9.1823e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1009  
   data-arc span      9875 days (27.04 yr)  
   first obs. used      1994-03-10  
   last obs. used      2021-03-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54903  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 06:18:51  

Additional Information
 Earth MOID = .969624 au 
 Jupiter MOID = 2.49418 au 
 T_jup = 3.613 
[ 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 15.72   n/a MPCxxxxx  

52557 (1997 EK41)          Discovered 1997-Mar-10 by LINEAR at Socorro
Reference: 20030216/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1997 EK41 = 1998 QS40 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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