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7098 Reaumur (1993 TK39)
Classification: Main-belt Asteroid          SPK-ID: 2007098
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2149146920671065 4.5526e-08  
a 2.636852894746949 9.597e-09 au
q 2.07015446684615 1.1967e-07 au
i 5.727993561188526 3.5924e-06 deg
node 115.6039338798894 4.9185e-05 deg
peri 84.46958481922327 4.9674e-05 deg
M 178.0505259092162 8.8453e-06 deg
tp 2457826.986246956811
(2017-Mar-14.48624696)
3.7046e-05 TDB
period 1563.965900541798
4.28
8.5383e-06
2.338e-08
d
yr
n .2301840467719193 1.2567e-09 deg/d
Q 3.203551322647748 1.166e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1763  
   data-arc span      18050 days (49.42 yr)  
   first obs. used      1970-05-31  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51529  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 02:59:15  

Additional Information
 Earth MOID = 1.07764 au 
 Jupiter MOID = 1.78005 au 
 T_jup = 3.357 
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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.7   n/a MPO452268  
diameter diameter 9.605 km 0.153 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.076   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

7098 Réaumur           Discovered 1993 Oct. 9 by E. W. Elst at the European Southern Observatory.
René-Antoine Ferchault de Réaumur (1683-1757) was a French scientist and important entomologist who developed the thermometer scale bearing his name. Well known for his Cupola furnace used for melting gray iron, he published his masterpiece Mémoires pour servir à l´histoire des insectes during 1734--1742.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20021120/MPCPages.arcLast Updated: 2003-10-02

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Alternate Designations
 1993 TK39 = 1970 KG = 1987 JD = 1991 GD12 = 1995 AU4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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