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31190 Toussaint (1997 YB12)
Classification: Main-belt Asteroid          SPK-ID: 2031190
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1140731266913305 9.7274e-08  
a 2.595812830599281 2.0616e-08 au
q 2.299700344707348 2.5617e-07 au
i 14.04970790963246 7.0374e-06 deg
node 276.8121109269425 3.3612e-05 deg
peri 126.3867580931275 5.4337e-05 deg
M 176.4891884915853 3.9932e-05 deg
tp 2456651.599545071729
(2013-Dec-25.09954507)
0.0001679 JED
period 1527.595917225444
4.18
1.8199e-05
4.983e-08
d
yr
n .2356644161853117 2.8075e-09 deg/d
Q 2.891925316491214 2.2968e-08 au
  Orbit Determination Parameters
   # obs. used (total)      665  
   data-arc span      6399 days (17.52 yr)  
   first obs. used      1997-10-08  
   last obs. used      2015-04-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .47771  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jun-04 17:04:02  

Additional Information
 Earth MOID = 1.3381 au 
 Jupiter MOID = 2.47606 au 
 T_jup = 3.366 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.8 mag n/a MPO279840  
rotation period rot_per 12.3546 h n/a LCDB (Rev. 2015-December); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

31190 Toussaint           Discovered 1997 Dec. 27 by R. Tucker at Goodricke-Pigott Observatory.
Roberta Marie Toussaint (b. 1954) is a U.S. experimental physicist noted for developing biomagnetic devices and techniques and also for vital improvements to calibration of vast amounts of data from the worldwide GONG network of helioseismic telescopes and a high-precision spectrometer.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20030806/MPCPages.arcLast Updated: 2003-10-02
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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