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9631 Hubertreeves (1993 SL6)
Classification: Main-belt Asteroid          SPK-ID: 2009631
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06894916119660333 1.7348e-08  
a 2.826893334165558 1.1338e-08 au
q 2.631981409982574 5.3781e-08 au
i 2.05304943884155 1.1352e-06 deg
node 174.7061176938986 3.0214e-05 deg
peri 220.9509685478907 3.5519e-05 deg
M 236.7001369999127 2.0437e-05 deg
tp 2459795.096916666500
(2022-Aug-03.59691667)
0.00010003 TDB
period 1736.051320671691
4.75
1.0445e-05
2.86e-08
d
yr
n .2073671415777693 1.2476e-09 deg/d
Q 3.021805258348543 1.212e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2223  
   data-arc span      14903 days (40.80 yr)  
   first obs. used      1979-11-17  
   last obs. used      2020-09-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47038  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 21:31:25  

Additional Information
 Earth MOID = 1.63769 au 
 Jupiter MOID = 2.28134 au 
 T_jup = 3.310 
[ 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 13.53   n/a E2021B10  
diameter diameter 6.246 km 0.286 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.217   0.023 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

9631 Hubertreeves           Discovered 1993 Sept. 17 by E. W. Elst at the European Southern Observatory.
Hubert Reeves, a professional astronomer at the French CNRS, has become known worldwide for his popularization of astronomy through his many books and lectures on radio and television.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19990928/MPCPages.arcLast Updated: 2010-06-11

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Alternate Designations
 1993 SL6 = 1979 WJ6 = 1988 RW7 = 1995 AT 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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