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14803 (1981 EL7)
Classification: Main-belt Asteroid          SPK-ID: 2014803
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1937101169764298 5.4133e-08  
a 2.452536778385163 1.2031e-08 au
q 1.977455592155177 1.2834e-07 au
i 12.26133294916641 5.4824e-06 deg
node 200.0770566050865 1.8183e-05 deg
peri 231.0571917844776 2.2484e-05 deg
M 156.8112051146464 1.0712e-05 deg
tp 2458389.422473898012
(2018-Sep-27.92247390)
4.1161e-05 TDB
period 1402.883864299621
3.84
1.0323e-05
2.826e-08
d
yr
n .256614256647486 1.8883e-09 deg/d
Q 2.927617964615149 1.4362e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1000  
   data-arc span      13919 days (38.11 yr)  
   first obs. used      1981-02-02  
   last obs. used      2019-03-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54745  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-12 19:28:53  

Additional Information
 Earth MOID = 1.01426 au 
 Jupiter MOID = 2.47517 au 
 T_jup = 3.438 
[ 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 15.0   n/a MPO467849  
diameter diameter 4.744 km 0.043 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.088   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

14803 (1981 EL7)          Discovered 1981-Mar-01 by Bus, S. J. at Siding Spring
Reference: 20000523/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1981 EL7 = 1983 VR = 2000 EU107 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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