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 ]  
66725 (1999 TH109)
Classification: Main-belt Asteroid          SPK-ID: 2066725
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1283910994668463 3.7509e-08  
a 2.689751966045597 1.5024e-08 au
q 2.344411753831891 1.0489e-07 au
i 12.36073183034842 5.2083e-06 deg
node 306.4873881602777 2.1048e-05 deg
peri 312.992713839189 3.0274e-05 deg
M 17.80221012813488 2.3306e-05 deg
tp 2459120.822041251660
(2020-Sep-28.32204125)
0.00010417 TDB
period 1611.264272410178
4.41
1.35e-05
3.696e-08
d
yr
n .2234270356292957 1.872e-09 deg/d
Q 3.035092178259302 1.6953e-08 au
  Orbit Determination Parameters
   # obs. used (total)      761  
   data-arc span      7639 days (20.91 yr)  
   first obs. used      1999-07-23  
   last obs. used      2020-06-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54583  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 12:24:32  

Additional Information
 Earth MOID = 1.34543 au 
 Jupiter MOID = 2.16134 au 
 T_jup = 3.328 
[ 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 14.79   n/a E2021B10  

66725 (1999 TH109)          Discovered 1999-Oct-04 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jun-20 16:01 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin