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16085 Laffan (1999 TM27)
Classification: Main-belt Asteroid          SPK-ID: 2016085
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07462072633117875 3.9149e-08  
a 2.722627254410894 1.1777e-08 au
q 2.51946283115769 1.1062e-07 au
i 1.822968400710553 4.4181e-06 deg
node 355.0051015653772 0.00011876 deg
peri 349.3934120583475 0.0001221 deg
M 258.4525690336744 2.9471e-05 deg
tp 2459463.357332662577
(2021-Sep-05.85733266)
0.00013498 TDB
period 1640.8946851032
4.49
1.0647e-05
2.915e-08
d
yr
n .2193925077997061 1.4235e-09 deg/d
Q 2.925791677664098 1.2656e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1264  
   data-arc span      10809 days (29.59 yr)  
   first obs. used      1990-11-13  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54105  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 17:55:38  

Additional Information
 Earth MOID = 1.51169 au 
 Jupiter MOID = 2.37231 au 
 T_jup = 3.353 
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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.7   n/a MPO337395  

16085 Laffan           Discovered 1999 Oct. 3 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
John Laffan mentored a finalist in the 2003 Intel Science Talent Search, a science competition for high school seniors. He teaches at the Clinton Senior High School, Clinton, New York.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20030216/MPCPages.arcLast Updated: 2011-11-22

Alternate Designations
 1999 TM27 = 1990 VX9 = 1994 RF19 = 1997 EO22 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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