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54439 Topeka (2000 MG3)
Classification: Main-belt Asteroid          SPK-ID: 2054439
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1898629978333128 2.6262e-08  
a 2.53899710897444 1.1143e-08 au
q 2.056935506374439 6.7383e-08 au
i 16.53432173504245 6.7096e-06 deg
node 155.5186769836077 1.0799e-05 deg
peri 89.71685896123202 2.3592e-05 deg
M 298.7136366533823 2.1535e-05 deg
tp 2458852.066662046288
(2020-Jan-03.56666205)
8.8864e-05 TDB
period 1477.718588464132
4.05
9.7277e-06
2.663e-08
d
yr
n .2436187801996632 1.6037e-09 deg/d
Q 3.021058711574442 1.3258e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1395  
   data-arc span      7359 days (20.15 yr)  
   first obs. used      1999-03-15  
   last obs. used      2019-05-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54156  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 04:50:58  

Additional Information
 Earth MOID = 1.12291 au 
 Jupiter MOID = 2.21714 au 
 T_jup = 3.364 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.5   n/a MPO436165  
rotation period rot_per 7.38 h n/a LCDB (Rev. 2019-January); 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:
[Chang, C.-K.; Lin, H.-W.; Ip, W.-H.; Prince, T.A.; et al. (2016) Astrophys. J. Sup. Ser. 227, A20.]

54439 Topeka           Discovered 2000 June 29 by G. Hug at Farpoint Observatory.
The capital city of Kansas, Topeka is home of the Atchinson, Topeka and Santa Fe Railroad, the Menninger Foundation and Washburn University, the only municipally owned university in the United States. Topeka has an excellent zoo, an elaborate library and the wonderful Topeka Symphony Orchestra.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20030501/MPCPages.arcLast Updated: 2003-10-02

Alternate Designations
 2000 MG3 = 1999 GG47 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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