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52555 (1997 EK4)
Classification: Main-belt Asteroid          SPK-ID: 2052555
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0584270887261689 4.8199e-08  
a 2.276646294506561 6.5298e-09 au
q 2.143628479459323 1.1056e-07 au
i 3.8541355842782 5.8278e-06 deg
node 3.718025826409551 4.9226e-05 deg
peri 210.2085366158106 6.3114e-05 deg
M 299.2650984779661 4.0417e-05 deg
tp 2459412.178915542746
(2021-Jul-16.67891554)
0.00014093 TDB
period 1254.705411315151
3.44
5.3981e-06
1.478e-08
d
yr
n .2869199389382223 1.2344e-09 deg/d
Q 2.409664109553799 6.9113e-09 au
  Orbit Determination Parameters
   # obs. used (total)      803  
   data-arc span      9246 days (25.31 yr)  
   first obs. used      1995-11-30  
   last obs. used      2021-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52893  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 06:18:50  

Additional Information
 Earth MOID = 1.13715 au 
 Jupiter MOID = 2.55401 au 
 T_jup = 3.603 
[ 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 16.1   n/a MPO452884  

52555 (1997 EK4)          Discovered 1997-Mar-02 by Spacewatch at Kitt Peak
Reference: 20030216/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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