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17493 Wildcat (1991 YA)
Classification: Mars-crossing Asteroid          SPK-ID: 2017493
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 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4421342771872787 1.5744e-07  
a 2.736365473111338 1.5468e-08 au
q 1.52652450253703 4.376e-07 au
i 44.37731284789021 1.0673e-05 deg
node 274.1778780734747 1.4498e-05 deg
peri 175.0107548957865 2.897e-05 deg
M 96.30965345311556 1.2198e-05 deg
tp 2458558.189856472783
(2019-Mar-15.68985647)
5.4851e-05 TDB
period 1653.330127984663
4.53
1.4019e-05
3.838e-08
d
yr
n .2177423576251067 1.8463e-09 deg/d
Q 3.946206443685645 2.2307e-08 au
  Orbit Determination Parameters
   # obs. used (total)      706  
   data-arc span      9981 days (27.33 yr)  
   first obs. used      1991-12-02  
   last obs. used      2019-03-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46489  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-12 22:20:18  

Additional Information
 Earth MOID = .544565 au 
 Jupiter MOID = 1.2982 au 
 T_jup = 2.831 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456593.5 (2013-Oct-28.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4425719231195562 1.5802e-07  
q 1.525317825727504 4.4028e-07 au
tp 2456905.811674977248
(2014-Sep-05.31167498)
5.2993e-05 TDB
node 274.1863102747125 1.4492e-05 deg
peri 175.0765961135382 2.8855e-05 deg
i 44.39100003165789 1.0676e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      706  
   data-arc span      9981 days (27.33 yr)  
   first obs. used      1991-12-02  
   last obs. used      2019-03-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46489  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-12 22:20:18  

Additional Information
 Jupiter MOID = 1.2982 au 
 T_jup = 2.831 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.497010180496537E-14 -6.956632920320496E-14 5.793781844995434E-14 6.315570708935258E-13 2.430012455056773E-12 -9.509282009932303E-14
q -6.956632920320496E-14 1.938430051108147E-13 -1.832876477187239E-13 -1.782233039695493E-12 -6.788918298333048E-12 2.695954273778261E-13
tp 5.793781844995434E-14 -1.832876477187239E-13 2.808214757879225E-9 -9.029191961636364E-11 1.117693395923957E-9 5.797094334953126E-11
node 6.315570708935258E-13 -1.782233039695493E-12 -9.029191961636364E-11 2.10016299071784E-10 -1.125501127188898E-10 -4.666032262371992E-11
peri 2.430012455056773E-12 -6.788918298333048E-12 1.117693395923957E-9 -1.125501127188898E-10 8.325833346455375E-10 4.833060833248037E-11
i -9.509282009932303E-14 2.695954273778261E-13 5.797094334953126E-11 -4.666032262371992E-11 4.833060833248037E-11 1.139679338135366E-10

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 14.6   n/a MPO467893  

17493 Wildcat           Discovered 1991 Dec. 31 by C. S. Shoemaker and D. H. Levy at Palomar.
The University of Arizona (whose athletic symbol is a wildcat) has contributed to astronomy and planetary sciences almost from its founding in 1885. Today the university remains in the forefront of astronomical research, discovery and in astronomical instrument development.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20030501/MPCPages.arcLast Updated: 2003-10-02

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