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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1668102174362711 3.7552e-08  
a 2.657860508409403 1.269e-08 au
q 2.214502219086352 1.0293e-07 au
i 10.95473360323025 4.3127e-06 deg
node 305.6431030881337 2.0447e-05 deg
peri 345.2151357005943 2.3653e-05 deg
M 35.60891141555419 1.3302e-05 deg
tp 2459239.950062068253
(2021-Jan-25.45006207)
5.8085e-05 TDB
period 1582.693079205208
4.33
1.1335e-05
3.103e-08
d
yr
n .2274603994482517 1.629e-09 deg/d
Q 3.101218797732454 1.4807e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1496  
   data-arc span      8084 days (22.13 yr)  
   first obs. used      1999-06-22  
   last obs. used      2021-08-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50932  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 02:02:14  

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 14.20   n/a MPO637242  
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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