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15965 Robertcox (1998 DU7)
Classification: Main-belt Asteroid          SPK-ID: 2015965
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 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08534205894000964 1.9162e-08  
a 2.998964676050391 1.4376e-08 au
q 2.743026855907891 6.0511e-08 au
i 12.22758003119348 1.1342e-06 deg
node 90.66245207775283 3.8652e-06 deg
peri 343.0029340144602 1.4654e-05 deg
M 210.1068092650601 1.6442e-05 deg
tp 2459990.332238013683
(2023-Feb-14.83223801)
8.844e-05 TDB
period 1896.948115459967
5.19
1.364e-05
3.734e-08
d
yr
n .1897785169061981 1.3646e-09 deg/d
Q 3.25490249619289 1.5603e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1985  
   data-arc span      16891 days (46.25 yr)  
   first obs. used      1974-06-18  
   last obs. used      2020-09-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45066  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Mar-17 00:49:36  

Additional Information
 Earth MOID = 1.76032 au 
 Jupiter MOID = 1.98361 au 
 T_jup = 3.214 
[ 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 12.89   n/a E2021B10  
diameter diameter 10.379 km 1.052 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.315   0.318 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

15965 Robertcox           Discovered 1998 Feb. 23 by J. M. Roe at Oaxaca.
Robert E. Cox (1917-1989) contributed to amateur telescope making through his long-time editing of "Gleanings for Amateur Telescope Makers" in the magazine Sky and Telescope, as well as by devoting much personal time to amateur groups.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20001013/MPCPages.arcLast Updated: 2013-03-29

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