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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1579909500548753 3.2273e-08  
a 2.519147829044958 1.3143e-08 au
q 2.121145270205469 8.3283e-08 au
i .4366137473133524 3.9798e-06 deg
node 278.458843620051 0.0011126 deg
peri 23.6109394783179 0.001113 deg
M 75.36533014510783 3.0387e-05 deg
tp 2458894.762991110073
(2020-Feb-15.26299111)
0.0001233 TDB
period 1460.423818066672
4.00
1.1429e-05
3.129e-08
d
yr
n .2465037857822483 1.9292e-09 deg/d
Q 2.917150387884447 1.522e-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 = 1.10373 au 
 Jupiter MOID = 2.2985 au 
 T_jup = 3.440 
[ 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 17.0   n/a MPO433007  

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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