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JPL Small-Body Database Browser
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13991 Kenphillips (1993 FZ6)
Classification: Main-belt Asteroid          SPK-ID: 2013991
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .197244319679318 3.4232e-08  
a 2.400821773994017 9.4176e-09 au
q 1.927273316511273 8.297e-08 au
i 3.296892835207444 3.5918e-06 deg
node 69.26979974588464 8.0385e-05 deg
peri 209.3259488962314 8.1086e-05 deg
M 291.9097875404941 1.2158e-05 deg
tp 2458857.492528431352
4.6381e-05 TDB
period 1358.74609423943
n .2649501636297348 1.559e-09 deg/d
Q 2.87437023147676 1.1275e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1268  
   data-arc span      9551 days (26.15 yr)  
   first obs. used      1993-03-17  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52231  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 02:12:46  

Additional Information
 Earth MOID = .911133 au 
 Jupiter MOID = 2.25828 au 
 T_jup = 3.497 
[ 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 14.9   n/a MPO431662  
rotation period rot_per 3.523 h n/a LCDB (Rev. 2019-January); 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.]

13991 Kenphillips           Discovered 1993 Mar. 17 at the European Southern Observatory in the course of the Uppsala-ESO Survey of Asteroids and Comets.
Ken Phillips (b. 1946), a solar physicist at the Rutherford Appleton Laboratory, works on the heating of the solar corona and x-ray spectroscopy and solar and stellar flares.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20010509/MPCPages.arcLast Updated: 2009-05-11

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2172-Dec-16 01:52 00:02 Hebe 0.0462154060560973 0.0461884031937112 0.046242410532529 8.32596358637474 8.32596357021865 2514716.578018215 1.71529355961799 1413.62194437294 31.1275565706348 -17.7467299192323 67848.4446637026 T 24 CATAB v2.0e-lin.ifort 2019-May-30 02:12:54 2019-May-30 02:12

Alternate Designations
 1993 FZ6 = 1997 JD10 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
FirstGov 2019-Dec-07 07:12 UT
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