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 ]  
74815 (1999 TG8)
Classification: Main-belt Asteroid          SPK-ID: 2074815
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1330499422346339 4.1262e-08  
a 2.292065039642208 9.1961e-09 au
q 1.987105918519789 9.4364e-08 au
i 6.383164536228794 5.2025e-06 deg
node 341.7640192911044 4.0867e-05 deg
peri 87.34344935601558 4.5896e-05 deg
M 196.4129355888549 2.1333e-05 deg
tp 2459176.450673720606
(2020-Nov-22.95067372)
7.6592e-05 TDB
period 1267.473337734716
3.47
7.6279e-06
2.088e-08
d
yr
n .2840296432928583 1.7093e-09 deg/d
Q 2.597024160764628 1.042e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1032  
   data-arc span      6828 days (18.69 yr)  
   first obs. used      1999-10-01  
   last obs. used      2018-06-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5793  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 06:30:35  

Additional Information
 Earth MOID = 1.01301 au 
 Jupiter MOID = 2.66918 au 
 T_jup = 3.578 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.8   n/a MPO395679  

74815 (1999 TG8)          Discovered 1999-Oct-07 by Juels, C. W. at Fountain Hills
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 TG8 = 2001 FF54 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2019-Dec-12 19:28 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin