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 ]  
73687 Thomas Aquinas (1990 TQ2)
Classification: Main-belt Asteroid          SPK-ID: 2073687
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 2 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .153925665447215 1.1656e-07  
a 2.580267524207911 3.8413e-08 AU
q 2.18309812851237 2.9252e-07 AU
i 15.32846486328777 1.1992e-05 deg
node 10.53675776237582 4.2841e-05 deg
peri 302.974988199051 6.6871e-05 deg
M 301.4867895753023 6.5511e-05 deg
tp 2457046.563364301875
(2015-Jan-24.06336430)
0.00027766 JED
period 1513.894221590778
4.14
3.3807e-05
9.256e-08
d
yr
n .2377973274920868 5.3103e-09 deg/d
Q 2.977436919903452 4.4326e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      291  
   data-arc span      8538 days (23.38 yr)  
   first obs. used      1990-10-10  
   last obs. used      2014-02-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .63851  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Mar-22 12:17:59  

Additional Information
 Earth MOID = 1.20959 AU 
 T_jup = 3.359 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.5 mag n/a MPO257334  

73687 Thomas Aquinas           Discovered 1990 Oct. 10 by F. Börngen and L. D. Schmadel at Tautenburg.
Thomas Aquinas (1225?-1274), Italian Tommaso d´Aquino, surnamed `Doctor Angelicus', is one of the foremost medieval theologians and philosophers. He wrote several major books, including (Summa theologiae and Summa contra gentiles), and he tried to reconcile faith with reason. The name was suggested by the first discoverer.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20041126/MPCPages.arcLast Updated: 2004-12-06

Alternate Designations
 1990 TQ2 = 1997 EM57 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2014-Apr-16 16:05 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin