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17555 Kenkennedy (1993 VC5)
Classification: Mars-crossing Asteroid          SPK-ID: 2017555
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3264365021568 3.5552e-08  
a 2.370223123107997 8.8652e-09 au
q 1.596495777469456 8.16e-08 au
i 21.59396665666576 4.2495e-06 deg
node 161.8731211139806 9.8466e-06 deg
peri 251.9296497129039 1.1438e-05 deg
M 139.74246462966 6.1769e-06 deg
tp 2458683.121746232196
(2019-Jul-18.62174623)
2.1409e-05 TDB
period 1332.853058302773
3.65
7.4778e-06
2.047e-08
d
yr
n .2700972907384227 1.5153e-09 deg/d
Q 3.143950468746537 1.1759e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1224  
   data-arc span      12198 days (33.40 yr)  
   first obs. used      1986-12-27  
   last obs. used      2020-05-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4846  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:06:04  

Additional Information
 Earth MOID = .725586 au 
 Jupiter MOID = 2.63445 au 
 T_jup = 3.382 
[ 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 14.86   n/a E2021B10  
diameter diameter 2.583 km 0.440 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
geometric albedo albedo 0.290   0.127 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  

17555 Kenkennedy           Discovered 1993 Nov. 4 by R. H. McNaught at Siding Spring.
Kenneth Kennedy (b. 1942) has been an active amateur astronomer in Scotland for fifty years. A retired senior hematologist, he has been Director of the BAA Aurora Section and has encouraged amateur collaboration in professional studies of aurora and polar mesospheric clouds.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2016-11-14Last Updated: 2016-11-20
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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