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38250 Tartois (1999 QS2)
Classification: Main-belt Asteroid          SPK-ID: 2038250
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 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1909549925186181 7.3272e-08  
a 3.162332772215875 4.7081e-08 AU
q 2.558469541356012 2.3481e-07 AU
i 2.3491973573472 7.0989e-06 deg
node 123.0622446786432 0.00017741 deg
peri 214.2085564998038 0.00017857 deg
M 261.9090049513677 2.6569e-05 deg
tp 2457560.175659129556
(2016-Jun-20.67565913)
0.00016036 JED
period 2054.044177926294
5.62
4.5871e-05
1.256e-07
d
yr
n .1752640005841773 3.914e-09 deg/d
Q 3.766196003075739 5.6071e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      531  
   data-arc span      8097 days (22.17 yr)  
   first obs. used      1992-04-27  
   last obs. used      2014-06-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .59976  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jul-14 13:17:25  

Additional Information
 Earth MOID = 1.55012 AU 
 T_jup = 3.175 
[ 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 14.6 mag n/a MPO299228  

38250 Tartois           Discovered 1999 Aug. 31 by R. Roy at Blauvac.
Lucien Tartois (b. 1924) is an amateur astronomer who was secretary of the Société astronomique de France. For many years he prepared the ephemerides for the society's publications. His skill as an astronomy teacher is very much appreciated, particularly at the science museum Le Palais de la Decouverte in Paris.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20030106/MPCPages.arcLast Updated: 2003-10-02

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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