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157421 Carolpercy (2004 TX299)
Classification: Main-belt Asteroid          SPK-ID: 2157421
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.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1578926725753809 3.2304e-08  
a 2.519539173397065 1.3115e-08 au
q 2.121722399651036 8.3342e-08 au
i .4365277270608731 3.9788e-06 deg
node 278.4678685763978 0.0011128 deg
peri 23.65474497064847 0.0011132 deg
M 123.6266370910379 3.0406e-05 deg
tp 2458894.862893182002
(2020-Feb-15.36289318)
0.00012339 TDB
period 1460.764141966382
4.00
1.1405e-05
3.123e-08
d
yr
n .246446356162188 1.9242e-09 deg/d
Q 2.917355947143093 1.5186e-08 au
  Orbit Determination Parameters
   # obs. used (total)      359  
   data-arc span      7403 days (20.27 yr)  
   first obs. used      2000-09-29  
   last obs. used      2021-01-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57587  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 19:48:41  

Additional Information
 Earth MOID = 1.1058 au 
 Jupiter MOID = 2.29748 au 
 T_jup = 3.439 
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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 17.18   n/a MPCxxxxx  

157421 Carolpercy           Discovered 2004 Oct. 8 by T. Glinos, D. Levy and W. Levy at Jarnac.
Carol Percy (b. 1964), a professor at the University of Toronto, studied James Cook's 1768-1771 Endeavour journal and how it was "corrected" for publication. She has also examined the social impact of the standardization of English, especially as it relates to those marginalized and/or educationally disadvantaged.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20070926/MPCPages.arcLast Updated: 2007-09-30

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Alternate Designations
 2004 TX299 = 2000 SE326 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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