Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
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 ]  
15911 Davidgauthier (1997 TL21)
Classification: Main-belt Asteroid          SPK-ID: 2015911
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2090568924818487 3.1542e-08  
a 2.431747291473505 9.8627e-09 au
q 1.923373759416901 7.6676e-08 au
i 2.136889038649717 5.1901e-06 deg
node 15.11876985517538 0.00010064 deg
peri 274.2513994814127 0.00010156 deg
M 167.4020068113168 1.3014e-05 deg
tp 2458752.428255039376
(2019-Sep-25.92825504)
5.0042e-05 TDB
period 1385.083922244532
3.79
8.4265e-06
2.307e-08
d
yr
n .2599120488068472 1.5812e-09 deg/d
Q 2.940120823530108 1.1925e-08 au
  Orbit Determination Parameters
   # obs. used (total)      659  
   data-arc span      9985 days (27.34 yr)  
   first obs. used      1993-09-15  
   last obs. used      2021-01-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52079  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 01:12:16  

Additional Information
 Earth MOID = .908207 au 
 Jupiter MOID = 2.24344 au 
 T_jup = 3.476 
[ 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 16.61   n/a E2021B10  

15911 Davidgauthier           Discovered 1997 Oct. 4 by Spacewatch at Kitt Peak.
David Gauthier (b. 1932) is an influential political philosopher who earned a D.Phil. from the University of Oxford, then was a faculty member at the University of Toronto and, beginning in 1980, at the University of Pittsburgh. The name was suggested by R. Jedicke and P. Jedicke.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20050523/MPCPages.arcLast Updated: 2005-07-21

[ show close-approach data ]
Alternate Designations
 1997 TL21 = 1993 SA13 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jul-31 03:52 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin