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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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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2143031763322311 1.2134e-08  
a 2.637127084799658 7.6767e-09 au
q 2.071982374135334 3.385e-08 au
i 5.728169104793531 2.5246e-07 deg
node 115.5971006722008 3.9048e-06 deg
peri 84.44660303601486 5.1883e-06 deg
M 1.218923167347069 5.1484e-06 deg
tp 2459391.203745494842
(2021-Jun-25.70374549)
2.2363e-05 TDB
period 1564.209847620371
4.28
6.8301e-06
1.87e-08
d
yr
n .2301481483112175 1.0049e-09 deg/d
Q 3.202271795463982 9.3218e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2524  
   data-arc span      18665 days (51.10 yr)  
   first obs. used      1970-05-31  
   last obs. used      2021-07-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47495  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 12:02:56  

Additional Information
 Earth MOID = 1.07987 au 
 Jupiter MOID = 1.7781 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 13.82   n/a MPO636172  
diameter diameter 9.605 km 0.153 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 228.89 h n/a LCDB (Rev. 2020-October); 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:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
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

[ show close-approach data ]
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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