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91422 Giraudon (1999 OH)
Classification: Main-belt Asteroid          SPK-ID: 2091422
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1668102199511352 3.8957e-08  
a 2.657860507768892 1.3198e-08 au
q 2.214502211868527 1.0737e-07 au
i 10.95473325685939 4.348e-06 deg
node 305.6431050563442 2.0627e-05 deg
peri 345.2151327418494 2.3825e-05 deg
M 35.60891265528874 1.3565e-05 deg
tp 2459239.950056674511
(2021-Jan-25.45005667)
5.9188e-05 TDB
period 1582.693078633094
4.33
1.1788e-05
3.227e-08
d
yr
n .2274603995304743 1.6942e-09 deg/d
Q 3.101218803669256 1.5399e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1425  
   data-arc span      8038 days (22.01 yr)  
   first obs. used      1999-06-22  
   last obs. used      2021-06-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51572  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 08:56:05  

Additional Information
 Earth MOID = 1.19984 au 
 Jupiter MOID = 2.11633 au 
 T_jup = 3.341 
[ 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 14.18   n/a E2021B10  
diameter diameter 8.336 km 0.102 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.070   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

91422 Giraudon           Discovered 1999 July 16 at Pises Observatory.
Edmond Giraudon (b. 1924), a professor in mechanical engineering and a popularizer of astronomy, initiated the construction of five observatories in several high schools in the Provence Alpes, Côte d´Azur and Languedoc Roussillon regions of France.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20070926/MPCPages.arcLast Updated: 2007-09-30

Alternate Designations
 1999 OH = 2000 XC7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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