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7166 Kennedy (1985 TR)
Classification: Main-belt Asteroid          SPK-ID: 2007166
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1359327942832069 2.7308e-08  
a 2.429552419897861 7.4892e-09 au
q 2.099296570603617 6.801e-08 au
i 3.701372641001401 4.0931e-06 deg
node 14.01304873705117 5.0253e-05 deg
peri 64.33384801079153 5.2969e-05 deg
M 5.003248401650047 1.592e-05 deg
tp 2458981.276281330856
(2020-May-11.77628133)
6.1162e-05 TDB
period 1383.209100433537
3.79
6.3957e-06
1.751e-08
d
yr
n .2602643373927817 1.2034e-09 deg/d
Q 2.759808269192104 8.5072e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2079  
   data-arc span      24229 days (66.34 yr)  
   first obs. used      1954-06-30  
   last obs. used      2020-10-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4742  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 03:30:07  

Additional Information
 Earth MOID = 1.11782 au 
 Jupiter MOID = 2.47043 au 
 T_jup = 3.493 
[ 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 13.7   n/a MPO452269  
diameter diameter 5.129 km 0.149 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 3.659 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.]
[Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.]
geometric albedo albedo 0.267   0.048 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

7166 Kennedy           Discovered 1985 Oct. 15 by E. Bowell at the Anderson Mesa Station of the Lowell Observatory.
Named in memory of Malcolm Kennedy (1944-1997), tireless and popular secretary of the Astronomical Society of Glasgow. Born and raised in New Zealand, Kennedy became a civil engineer in Scotland. He was an energetic member of the Free Church in Cumbernauld, near Glasgow. As secretary of the ASG, he ensured that meetings ran smoothly, enlivening them with wordplay and puns.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19980808/MPCPages.arcLast Updated: 2009-11-17

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
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
1920-Mar-28 22:37 < 00:01 Eunom 0.0406382163279069 0.0406316756862429 0.0406447574288908 4.07471125883295 4.074711174059 2422412.442142994 0.530036488129578 390.970437980385 30.0791327975878 -33.6682946845716 112677.428166194 T 29 CATAB v2.0f-lin.ifort 2020-Nov-13 03:30:14 2020-Nov-13 03:30
2178-May-14 02:56 00:08 Amphi 0.0425823011244192 0.0425707031514354 0.0425939019333699 1.16405034372292 1.16405022774584 2516691.621940363 7.58085619425868 790.105142600312 30.9872013469789 43.4949077272676 140773.664806874 T 29 CATAB v2.0f-lin.ifort 2020-Nov-13 03:30:14 2020-Nov-13 03:30

Alternate Designations
 1985 TR = 1976 JA10 = 1991 HC5 = 1992 OZ8 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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