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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1133836163976195 9.6948e-08  
a 2.597699315436625 2.0646e-08 AU
q 2.3031627727388 2.5531e-07 AU
i 14.05283515708131 7.0384e-06 deg
node 276.8574167465594 3.3584e-05 deg
peri 126.6212458447099 5.4586e-05 deg
M 82.01349340215906 4.0064e-05 deg
tp 2456652.110901285229
(2013-Dec-25.61090129)
0.00016961 JED
period 1529.261470698621
4.19
1.8232e-05
4.992e-08
d
yr
n .2354077487060073 2.8065e-09 deg/d
Q 2.89223585813445 2.2987e-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 = 1.34202 AU 
 T_jup = 3.365 
[ 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-July); 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., in press.]

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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