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9587 Bonpland (1990 UG4)
Classification: Main-belt Asteroid          SPK-ID: 2009587
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1639938657925561 3.7846e-08  
a 2.57656967212947 1.0577e-08 au
q 2.154028051113099 9.7222e-08 au
i 13.80034296853642 4.0266e-06 deg
node 194.6570932755447 1.6898e-05 deg
peri 79.72038894692815 2.0424e-05 deg
M 71.78275446916763 1.3286e-05 deg
tp 2458299.283414529760
(2018-Jun-29.78341453)
5.5161e-05 TDB
period 1510.640982937802
4.14
9.3019e-06
2.547e-08
d
yr
n .2383094355747545 1.4674e-09 deg/d
Q 2.99911129314584 1.2312e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1634  
   data-arc span      11601 days (31.76 yr)  
   first obs. used      1988-01-26  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50232  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 03:18:12  

Additional Information
 Earth MOID = 1.18914 au 
 Jupiter MOID = 2.20305 au 
 T_jup = 3.368 
[ 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 13.5   n/a MPO358723  
diameter diameter 4.828 km 0.119 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 2.206 h n/a LCDB (Rev. 2019-January); 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 0.364   0.040 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

9587 Bonpland           Discovered 1990 Oct. 16 by E. W. Elst at the European Southern Observatory.
Aimé Jacques Goujard Bonpland (1773-1858) was a physician with a profound interest in botany. In 1799 he joined von Humboldt on his expedition to Mexico and South America. Their exploits have been recorded in Voyage aux régions équinoxiales du nouveau continent (1815).
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

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Alternate Designations
 1990 UG4 = 1988 BV4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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