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JPL Small-Body Database Browser
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52681 Kelleghan (1998 DK34)
Classification: Main-belt Asteroid          SPK-ID: 2052681
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1367797516029668 4.5153e-08  
a 3.180958873663504 2.2314e-08 au
q 2.745868109064557 1.4758e-07 au
i .92409088892089 4.6526e-06 deg
node 122.5842416962819 0.00030691 deg
peri 20.30258669271831 0.0003074 deg
M 353.5210077827213 1.7422e-05 deg
tp 2459037.794128736923
0.00010038 TDB
period 2072.218316528741
n .1737268689927666 1.828e-09 deg/d
Q 3.616049638262451 2.5367e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1017  
   data-arc span      10648 days (29.15 yr)  
   first obs. used      1990-11-10  
   last obs. used      2020-01-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55816  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 08:21:26  

Additional Information
 Earth MOID = 1.75851 au 
 Jupiter MOID = 1.39972 au 
 T_jup = 3.185 
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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 14.3   n/a MPO319709  
diameter diameter 7.507 km 0.194 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
rotation period rot_per 6.363 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.065   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  

52681 Kelleghan           Discovered 1998 Feb. 27 by E. W. Elst at the European Southern Observatory.
Deirdre Kelleghan (b. 1957) is an Irish astronomer, artist and educator. She invents, designs and enacts creative workshops to help children understand our solar system through drawing. Her activities take place in schools, libraries, science centres and observatories throughout Ireland.
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 2018-10-26Last Updated: 2019-04-09

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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