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JPL Small-Body Database Browser
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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09761469311681058 4.0277e-08  
a 2.402198878591692 1.3453e-08 au
q 2.167708972252417 9.5717e-08 au
i 5.891401127800402 7.5392e-06 deg
node 311.0873918587681 4.1345e-05 deg
peri 296.5793889873062 5.914e-05 deg
M 131.7754280232511 4.1306e-05 deg
tp 2458502.712712405742
(2019-Jan-19.21271241)
0.00015689 TDB
period 1359.915321256354
3.72
1.1424e-05
3.128e-08
d
yr
n .2647223649685887 2.2238e-09 deg/d
Q 2.636688784930966 1.4766e-08 au
  Orbit Determination Parameters
   # obs. used (total)      646  
   data-arc span      15638 days (42.81 yr)  
   first obs. used      1977-02-11  
   last obs. used      2019-12-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56759  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 04:59:33  

Additional Information
 Earth MOID = 1.16134 au 
 Jupiter MOID = 2.41446 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 15.6   n/a MPO395493  

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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