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17386 (1981 EA23)
Classification: Main-belt Asteroid          SPK-ID: 2017386
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04634481862321702 3.9501e-08  
a 2.66541538961664 1.2729e-08 au
q 2.541887196829325 1.0627e-07 au
i 8.560678217851263 5.2787e-06 deg
node 352.3483198652061 2.5806e-05 deg
peri 240.1838205151424 6.1974e-05 deg
M 357.0501640806828 5.738e-05 deg
tp 2459213.523902522994
(2020-Dec-30.02390252)		 0.00025334 TDB
period 1589.446001919716
4.35		 1.1385e-05
3.117e-08		 d
yr
n .2264940108472989 1.6224e-09 deg/d
Q 2.788943582403954 1.3318e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1027  
   data-arc span      14347 days (39.28 yr)  
   first obs. used      1981-02-09  
   last obs. used      2020-05-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54869  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:02:20  

Additional Information
 Earth MOID = 1.54404 au 
 Jupiter MOID = 2.21244 au 
 T_jup = 3.366 
[ 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 14.96   n/a E2021B10  
diameter diameter 3.175 km 0.214 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.304   0.036 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

17386 (1981 EA23)          Discovered 1981-Mar-02 by Bus, S. J. at Siding Spring
Reference: 20001013/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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