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
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
66666 (1999 TL9)
Classification: Main-belt Asteroid          SPK-ID: 2066666
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .185587918391282 8.7374e-08  
a 2.604626694265869 1.593e-08 au
q 2.1212394478907 2.199e-07 au
i 9.693204369642832 6.5604e-06 deg
node 21.91370363920895 2.8049e-05 deg
peri 8.736180383448113 3.1076e-05 deg
M 324.4201643913976 1.7757e-05 deg
tp 2459152.246294254667
(2020-Oct-29.74629425)
7.6689e-05 TDB
period 1535.382752540663
4.20
1.4085e-05
3.856e-08
d
yr
n .2344692223514252 2.151e-09 deg/d
Q 3.088013940641038 1.8886e-08 au
  Orbit Determination Parameters
   # obs. used (total)      717  
   data-arc span      9159 days (25.08 yr)  
   first obs. used      1993-03-24  
   last obs. used      2018-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56748  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-May-07 04:36:18  

Additional Information
 Earth MOID = 1.12697 au 
 Jupiter MOID = 2.36806 au 
 T_jup = 3.368 
[ 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 15.0   n/a MPO299404  

66666 (1999 TL9)          Discovered 1999-Oct-07 by Korlevic, K., Juric, M. at Visnjan
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 TL9 = 2001 DX18 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Feb-27 08:45 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin