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52247 (1981 EP10)
Classification: Main-belt Asteroid          SPK-ID: 2052247
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09741328201817746 3.9777e-08  
a 2.402657780198434 1.2268e-08 au
q 2.168607000262796 9.3604e-08 au
i 5.89140174258364 5.9815e-06 deg
node 311.0867994508912 3.8985e-05 deg
peri 296.6095013784195 5.0526e-05 deg
M 184.6855254487901 3.3013e-05 deg
tp 2459862.947668534796
(2022-Oct-10.44766853)
0.0001253 TDB
period 1360.305024916043
3.72
1.0419e-05
2.853e-08
d
yr
n .2646465266289956 2.027e-09 deg/d
Q 2.636708560134073 1.3463e-08 au
  Orbit Determination Parameters
   # obs. used (total)      694  
   data-arc span      16069 days (43.99 yr)  
   first obs. used      1977-02-11  
   last obs. used      2021-02-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56727  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 10:43:47  

Additional Information
 Earth MOID = 1.16067 au 
 Jupiter MOID = 2.41333 au 
 T_jup = 3.511 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.72   n/a MPCxxxxx  

52247 (1981 EP10)          Discovered 1981-Mar-01 by Bus, S. J. at Siding Spring
Reference: 20030216/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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