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10830 Desforges (1993 UT6)
Classification: Main-belt Asteroid          SPK-ID: 2010830
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1752243938880282 1.7837e-08  
a 2.661771182401484 9.3504e-09 au
q 2.195363940296564 4.7997e-08 au
i 11.15167322285348 4.3602e-07 deg
node 178.7092610037782 4.1702e-06 deg
peri 307.6164418439863 3.9821e-06 deg
M 18.50817033984416 3.2625e-06 deg
tp 2459118.951591026095
(2020-Sep-26.45159103)
1.4188e-05 TDB
period 1586.18743460586
4.34
8.358e-06
2.288e-08
d
yr
n .2269593064135284 1.1959e-09 deg/d
Q 3.128178424506404 1.0989e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2036  
   data-arc span      14242 days (38.99 yr)  
   first obs. used      1982-03-27  
   last obs. used      2021-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45962  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 00:46:30  

Additional Information
 Earth MOID = 1.22896 au 
 Jupiter MOID = 1.98725 au 
 T_jup = 3.337 
[ show covariance matrix ]

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 13.75   n/a MPCxxxxx  
diameter diameter 9.390 km 0.203 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 8.804 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.080   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

10830 Desforges           Discovered 1993 Oct. 20 by E. W. Elst at the European Southern Observatory.
Jacques Desforges (1723-1791) was a French priest at Etampes, opposing the clergy by writing the pamphlet Avantages du mariage aux prêtres et évêques... (Brussels, 1758). The eight months he had to spend in the Bastille he used for planning the construction of a flying machine.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20030318/MPCPages.arcLast Updated: 2003-10-02

[ show close-approach data ]
Alternate Designations
 1993 UT6 = 1982 FS2 = 1984 SS7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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