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JPL Small-Body Database Browser
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117558 (2005 EN23)
Classification: Main-belt Asteroid          SPK-ID: 2117558
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1108005880029584 4.1203e-08  
a 2.348173619617648 1.2765e-08 au
q 2.087994601830978 9.4901e-08 au
i 12.55808723663428 4.6169e-06 deg
node 169.8778986555088 1.6561e-05 deg
peri 31.75649324938579 2.3402e-05 deg
M 305.4755121275671 1.6648e-05 deg
tp 2458799.559463049398
(2019-Nov-12.05946305)
6.1162e-05 TDB
period 1314.297657695462
3.60
1.0717e-05
2.934e-08
d
yr
n .2739105543497941 2.2335e-09 deg/d
Q 2.60835263740432 1.4179e-08 au
  Orbit Determination Parameters
   # obs. used (total)      665  
   data-arc span      7614 days (20.85 yr)  
   first obs. used      1998-03-24  
   last obs. used      2019-01-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56178  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 02:40:04  

Additional Information
 Earth MOID = 1.09739 au 
 Jupiter MOID = 2.36181 au 
 T_jup = 3.519 
[ 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 16.0   n/a MPO432680  

117558 (2005 EN23)          Discovered 2005-Mar-03 by CSS at Catalina
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 2005 EN23 = 1998 HP104 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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