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5255 Johnsophie (1988 KF)
Classification: Main-belt Asteroid          SPK-ID: 2005255
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 42 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01831961090989838 2.0462e-08  
a 2.670488503090359 1.114e-08 au
q 2.621566192774386 5.625e-08 au
i 11.62203615018042 7.5355e-07 deg
node 99.58194850602619 1.7952e-06 deg
peri 120.9140788252698 4.5079e-05 deg
M 182.7689053638261 4.4845e-05 deg
tp 2459985.232997578581
(2023-Feb-09.73299758)
0.00020095 TDB
period 1593.985974685892
4.36
9.9741e-06
2.731e-08
d
yr
n .2258489131756262 1.4132e-09 deg/d
Q 2.719410813406332 1.1344e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2280  
   data-arc span      24302 days (66.54 yr)  
   first obs. used      1954-08-27  
   last obs. used      2021-03-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45961  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 17:19:32  

Additional Information
 Earth MOID = 1.61912 au 
 Jupiter MOID = 2.32885 au 
 T_jup = 3.352 
[ 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 13.33   n/a E2021B10  
diameter diameter 13.732 km 0.153 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.051   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

5255 Johnsophie           Discovered 1988 May 19 by E. F. Helin at Palomar.
Named in honor of John and Sophie Karayusuf, parents of Alford S. Karayusuf, a friend of the discoverer. Under the starry skies of the Syrian Desert, they inspired their children to study the stars and planets and to wonder in amazement at the ability of mankind to explore the heavens.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19980610/MPCPages.arcLast Updated: 2009-11-17

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Alternate Designations
 1988 KF = 1979 HF6 = 1991 AA2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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