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24070 Toniwest (1999 TH173)
Classification: Main-belt Asteroid          SPK-ID: 2024070
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1002926860647439 6.5924e-08  
a 2.341616603448812 1.4268e-08 AU
q 2.106769584555128 1.5733e-07 AU
i 3.586123169754837 5.2168e-06 deg
node 114.7975441794461 0.00010415 deg
peri 43.14787889688537 0.00010758 deg
M 330.7685906449495 2.6917e-05 deg
tp 2457106.772124861531
(2015-Mar-25.27212486)
9.7816e-05 JED
period 1308.796455397084
3.58
1.1962e-05
3.275e-08
d
yr
n .2750618696402087 2.514e-09 deg/d
Q 2.576463622342495 1.5699e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      757  
   data-arc span      8129 days (22.26 yr)  
   first obs. used      1992-11-21  
   last obs. used      2015-02-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52305  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Mar-09 15:14:12  

Additional Information
 Earth MOID = 1.11851 AU 
 T_jup = 3.554 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.2 mag n/a MPO270293  

24070 Toniwest           Discovered 1999 Oct. 10 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Toni West mentored a finalist in the 2007 Discovery Channel Young Scientist Challenge (DCYSC), a middle school science competition. She teaches at the Meadow Park Middle School, Summa Academy, Beaverton, Oregon.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20071026/MPCPages.arcLast Updated: 2007-10-28

[ show close-approach data ]
Alternate Designations
 1999 TH173 = 1997 AL23 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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