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10303 Freret (1989 RD2)
Classification: Main-belt Asteroid          SPK-ID: 2010303
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 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2436332000137005 2.7827e-08  
a 2.378052881804877 7.3893e-09 au
q 1.798680248408953 6.6905e-08 au
i 2.834470067605198 3.3712e-06 deg
node 166.7669368818892 7.569e-05 deg
peri 166.5204065489235 7.6121e-05 deg
M 192.5745089468146 1.0046e-05 deg
tp 2459823.445093380508
(2022-Aug-31.94509338)
3.8788e-05 TDB
period 1339.462899026188
3.67
6.2431e-06
1.709e-08
d
yr
n .2687644430179634 1.2527e-09 deg/d
Q 2.957425515200801 9.1896e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1798  
   data-arc span      15501 days (42.44 yr)  
   first obs. used      1978-08-09  
   last obs. used      2021-01-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51382  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 01:54:05  

Additional Information
 Earth MOID = .786774 au 
 Jupiter MOID = 2.4233 au 
 T_jup = 3.498 
[ 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 14.33   n/a E2021B10  
diameter diameter 3.423 km 0.533 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.345   0.100 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

10303 Fréret           Discovered 1989 Sept. 2 by E. W. Elst at Haute Provence.
The famous French historian Nicolas Fréret (1688-1749), well known for his atheistic treatise Lettre de Thrasybule à Leucippe (1720), was imprisoned in the Bastille for alleging---correctly---that the Franks were evolved from German tribes.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19991123/MPCPages.arcLast Updated: 2010-06-11

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Alternate Designations
 1989 RD2 = 1978 PD4 = 1978 QC1 = 1982 VU4 = 1982 XE2 = 1982 XL2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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