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17396 (1981 EK45)
Classification: Main-belt Asteroid          SPK-ID: 2017396
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1189443513738876 4.6054e-08  
a 2.352787667039467 9.2691e-09 au
q 2.072936864062976 1.0885e-07 au
i 6.463590806801034 4.9823e-06 deg
node 332.4912531554158 3.0992e-05 deg
peri 6.424369140147308 3.4594e-05 deg
M 157.0074720390127 1.6202e-05 deg
tp 2458425.602593130055
(2018-Nov-03.10259313)
5.7947e-05 TDB
period 1318.173356881733
3.61
7.7897e-06
2.133e-08
d
yr
n .2731052013155651 1.6139e-09 deg/d
Q 2.632638470015959 1.0372e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1027  
   data-arc span      25258 days (69.15 yr)  
   first obs. used      1950-12-09  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55241  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 22:03:22  

Additional Information
 Earth MOID = 1.06391 au 
 Jupiter MOID = 2.71784 au 
 T_jup = 3.538 
[ 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 15.5   n/a MPO263502  
diameter diameter 2.411 km 0.464 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.277   0.135 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

17396 (1981 EK45)          Discovered 1981-Mar-01 by Bus, S. J. at Siding Spring
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1981 EK45 = 1995 BV10 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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