Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Near-Earth Object (NEO) Program
Search JPL
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
3821 Sonet (1985 RC3)
Classification: Outer Main-belt Asteroid          SPK-ID: 2003821
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1858019959068575 4.6799e-08  
a 3.238734273856292 2.4932e-08 AU
q 2.636970981561846 1.5551e-07 AU
i .5535140760349131 5.6116e-06 deg
node 113.2849459984772 0.00065542 deg
peri 339.932261426353 0.00065544 deg
M 260.4344595860346 1.7347e-05 deg
tp 2457589.300211387257
(2016-Jul-19.80021139)
0.00010375 JED
period 2128.930101901813
5.83
2.4583e-05
6.73e-08
d
yr
n .169099022874638 1.9526e-09 deg/d
Q 3.840497566150738 2.9564e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1081  
   data-arc span      23302 days (63.80 yr)  
   first obs. used      1951-11-08  
   last obs. used      2015-08-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .49088  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Sep-02 14:10:31  

Additional Information
 Earth MOID = 1.65343 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-July); 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., in press.]

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

[ show close-approach data ]
Alternate Designations
 1985 RC3 = 1951 YV = 1979 QQ5 = 1982 DH5 = 1986 WH 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2015-Sep-03 02:31 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin