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3821 Sonet (1985 RC3)
Classification: Outer Main-belt Asteroid          SPK-ID: 2003821
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1856082292902218 4.429e-08  
a 3.237459679185928 2.299e-08 au
q 2.636560520733738 1.4994e-07 au
i .5535404151965762 4.8952e-06 deg
node 113.3025883568108 0.00063687 deg
peri 340.0111335351181 0.00063695 deg
M 327.9826476445446 1.5964e-05 deg
tp 2457589.729086981775
(2016-Jul-20.22908698)
9.4446e-05 JED
period 2127.673473969551
5.83
2.2663e-05
6.205e-08
d
yr
n .1691988946632663 1.8023e-09 deg/d
Q 3.838358837638117 2.7257e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1240  
   data-arc span      23410 days (64.09 yr)  
   first obs. used      1951-11-08  
   last obs. used      2015-12-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .49253  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 12:49:41  

Additional Information
 Earth MOID = 1.65289 au 
 Jupiter MOID = 1.3687 au 
 T_jup = 3.157 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.6 mag n/a MPO309178  
rotation period rot_per 9.5586 h n/a LCDB (Rev. 2015-December); 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.]

3821 Sonet           Discovered 1985 Sept. 6 by H. Debehogne at the European Southern Observatory.
Jean Sonet (1908-1987), a Belgian Jesuit, was a specialist in Romance languages, professor and later rector (1953-1958) of the University of Namur. From 1958 to his death he was Vice-Rector of the Catholic University of Cordoba (Argentina), where the discoverer met him. The name was suggested by A. Sonet.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20010509/MPCPages.arcLast Updated: 2009-05-11

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Alternate Designations
 1985 RC3 = 1951 YV = 1979 QQ5 = 1982 DH5 = 1986 WH 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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