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JPL Small-Body Database Browser
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215099 (1981 EN36)
Classification: Main-belt Asteroid          SPK-ID: 2215099
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1685152937067585 5.8478e-08  
a 2.763786177570749 3.4231e-08 au
q 2.298045938114735 1.6161e-07 au
i 7.88334179274986 7.829e-06 deg
node 218.6521391256096 4.2323e-05 deg
peri 250.418592528804 4.7983e-05 deg
M 160.2640193947571 2.0898e-05 deg
tp 2457853.383001931949
(2017-Apr-09.88300193)
9.8762e-05 TDB
period 1678.243939720491
4.59
3.1179e-05
8.536e-08
d
yr
n .2145099359393232 3.9852e-09 deg/d
Q 3.229526417026763 3.9999e-08 au
  Orbit Determination Parameters
   # obs. used (total)      197  
   data-arc span      13603 days (37.24 yr)  
   first obs. used      1981-02-14  
   last obs. used      2018-05-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61335  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 06:56:58  

Additional Information
 Earth MOID = 1.3292 au 
 Jupiter MOID = 1.98681 au 
 T_jup = 3.306 
[ 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 16.1   n/a MPO440134  

215099 (1981 EN36)          Discovered 1981-Mar-07 by Bus, S. J. at Siding Spring
Reference: 20090607/Numbers.arcLast Updated: 2009-06-08

[ show close-approach data ]
Alternate Designations
 1981 EN36 = 2004 FX12 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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