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16972 Neish (1998 WK11)
Classification: Main-belt Asteroid          SPK-ID: 2016972
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1827987341812045 4.6237e-08  
a 2.539797071746359 1.3063e-08 au
q 2.075525381953994 1.1928e-07 au
i 9.769224010424956 4.9062e-06 deg
node 83.51675407356457 2.0062e-05 deg
peri 182.857511967331 2.2228e-05 deg
M 251.7402957478474 1.0497e-05 deg
tp 2459445.091637523657
(2021-Aug-18.59163752)
4.4036e-05 TDB
period 1478.417021496103
4.05
1.1406e-05
3.123e-08
d
yr
n .2435036899370201 1.8786e-09 deg/d
Q 3.004068761538723 1.5451e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1812  
   data-arc span      9331 days (25.55 yr)  
   first obs. used      1994-12-01  
   last obs. used      2020-06-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48028  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:23:59  

Additional Information
 Earth MOID = 1.05971 au 
 Jupiter MOID = 2.08602 au 
 T_jup = 3.403 
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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 13.8   n/a MPO421782  

16972 Neish           Discovered 1998 Nov. 21 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Catherine D. Neish (b. 1981) is a professor at the University of Western Ontario who studies Titan, the Moon and Venus using orbital radar. Previously known by the moniker Katie Dot, she is an avid scuba diver, a champion for social justice, and mother to Penelope.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2017-12-03Last Updated: 2017-12-07

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Alternate Designations
 1998 WK11 = 1994 XS2 = 1999 XZ164 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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