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123940 (2001 EL18)
Classification: Outer Main-belt Asteroid          SPK-ID: 2123940
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09970467872778475 3.9934e-08  
a 3.213158739010894 2.5352e-08 au
q 2.892791779236439 1.2513e-07 au
i 7.104489123666892 4.2913e-06 deg
node 27.86197256654981 4.0756e-05 deg
peri 172.8316392002038 4.8332e-05 deg
M 92.91580618031004 2.5152e-05 deg
tp 2458457.520044421615
(2018-Dec-05.02004442)
0.00014679 TDB
period 2103.762449511433
5.76
2.4898e-05
6.817e-08
d
yr
n .1711219819916477 2.0252e-09 deg/d
Q 3.533525698785349 2.7879e-08 au
  Orbit Determination Parameters
   # obs. used (total)      724  
   data-arc span      10167 days (27.84 yr)  
   first obs. used      1992-09-27  
   last obs. used      2020-07-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61055  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 10:22:49  

Additional Information
 Earth MOID = 1.89002 au 
 Jupiter MOID = 1.42258 au 
 T_jup = 3.171 
[ 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 14.4   n/a MPO396059  

123940 (2001 EL18)          Discovered 2001-Mar-15 by NEAT at Haleakala
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

[ show close-approach data ]
Alternate Designations
 2001 EL18 = 1992 SU10 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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