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11942 Guettard (1993 NV)
Classification: Main-belt Asteroid          SPK-ID: 2011942
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05404569417324035 3.0787e-08  
a 2.873963601494389 1.231e-08 au
q 2.718638243622999 9.0326e-08 au
i .8006586969558431 3.0912e-06 deg
node 244.2245210180901 0.00030024 deg
peri 40.69031827577779 0.00030271 deg
M 233.5666121032722 3.9904e-05 deg
tp 2459825.499394795246
(2022-Sep-02.99939480)
0.00019812 TDB
period 1779.591497698937
4.87
1.1433e-05
3.13e-08
d
yr
n .2022936165212581 1.2997e-09 deg/d
Q 3.029288959365779 1.2975e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2078  
   data-arc span      15158 days (41.50 yr)  
   first obs. used      1979-09-23  
   last obs. used      2021-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51895  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 01:04:21  

Additional Information
 Earth MOID = 1.70034 au 
 Jupiter MOID = 2.04379 au 
 T_jup = 3.295 
[ 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 13.77   n/a MPCxxxxx  
diameter diameter 4.341 km 0.721 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.373   0.089 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

11942 Guettard           Discovered 1993 July 12 by E. W. Elst at the European Southern Observatory.
Jean-Etienne Guettard (1715-1786) was a French geologist and mineralogist. From the evidence of fossils found in the volcanic hills of the Puy de Dôme, in south-central France, he concluded correctly that they conflicted with the time scheme of the Old Testament.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20000523/MPCPages.arcLast Updated: 2013-03-29

Alternate Designations
 1993 NV = 1979 SQ5 = 1997 EX47 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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