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4794 Bogard (1988 SO2)
Classification: Main-belt Asteroid          SPK-ID: 2004794
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1163130777997988 3.8493e-08  
a 2.271447275416727 8.1429e-09 au
q 2.00724825175304 8.6974e-08 au
i 5.402665811135885 4.2168e-06 deg
node 174.0300024452912 4.1147e-05 deg
peri 353.5599109872416 4.4476e-05 deg
M 170.2167940607348 1.7257e-05 deg
tp 2458009.275635181734
(2017-Sep-12.77563518)
5.9156e-05 TDB
period 1250.409940505826
3.42
6.7239e-06
1.841e-08
d
yr
n .2879055806725032 1.5482e-09 deg/d
Q 2.535646299080413 9.09e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1738  
   data-arc span      17606 days (48.20 yr)  
   first obs. used      1971-06-28  
   last obs. used      2019-09-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51536  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 00:47:35  

Additional Information
 Earth MOID = 1.0143 au 
 Jupiter MOID = 2.43397 au 
 T_jup = 3.597 
[ 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 13.7   n/a MPO347561  
diameter diameter 4.364 km 0.105 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.369   0.114 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

4794 Bogard           Discovered 1988 Sept. 16 by S. J. Bus at Cerro Tololo.
Donald Bogard (b. 1940) of NASA's Johnson Space Center has been at the forefront of understanding the chronology of formation and impact alterations of solar system bodies using argon isotope measurements. He played a key role in recognizing the martian origin of some meteorites using analyses of trapped gases.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20001013/MPCPages.arcLast Updated: 2013-03-29

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Alternate Designations
 1988 SO2 = 1980 EY1 = 1983 BR = 1985 VH 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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