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 ]  
30928 Jefferson (1993 TJ32)
Classification: Main-belt Asteroid          SPK-ID: 2030928
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1618108863430782 5.3822e-08  
a 2.651883874228292 2.1816e-08 au
q 2.222780194060496 1.4195e-07 au
i 16.27480480875573 7.4048e-06 deg
node 32.61764785500292 2.2554e-05 deg
peri 69.72520610095695 3.4743e-05 deg
M 355.147900039627 2.4624e-05 deg
tp 2457421.759714065267
(2016-Feb-03.25971407)
0.00010795 JED
period 1577.357664929064
4.32
1.9465e-05
5.329e-08
d
yr
n .2282297845341182 2.8164e-09 deg/d
Q 3.080987554396089 2.5347e-08 au
  Orbit Determination Parameters
   # obs. used (total)      749  
   data-arc span      23742 days (65.00 yr)  
   first obs. used      1950-12-09  
   last obs. used      2015-12-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .4709  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 14:15:21  

Additional Information
 Earth MOID = 1.29483 au 
 Jupiter MOID = 2.29727 au 
 T_jup = 3.315 
[ 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 13.6 mag n/a MPO233692  
rotation period rot_per 5.8413 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.]

30928 Jefferson           Discovered 1993 Oct. 9 by E. W. Elst at the European Southern Observatory.
Thomas Jefferson (1743-1826), the third president of the United States (1801-1809), will be always remembered as the principal author of the 1776 Declaration of Independence. A man of the Enlightenment and of great intellectual power, he is also honored for the Virginian Statute for Religious Freedom (1779).
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20090409/MPCPages.arcLast Updated: 2009-04-10

[ show close-approach data ]
Alternate Designations
 1993 TJ32 = 1993 TO48 = 1999 CN123 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2016-Feb-11 17:04 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin