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 ]  
91809 (1999 TG248)
Classification: Main-belt Asteroid          SPK-ID: 2091809
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08120160080307227 4.586e-08  
a 3.069721279375099 2.8244e-08 au
q 2.820454997470586 1.3915e-07 au
i 9.600531857931131 5.5296e-06 deg
node 186.2108210412048 2.6668e-05 deg
peri 235.1842230535485 4.4339e-05 deg
M 285.5957997871427 3.2805e-05 deg
tp 2459406.514735716183
(2021-Jul-11.01473572)
0.00017865 TDB
period 1964.476527395937
5.38
2.7112e-05
7.423e-08
d
yr
n .183254925665723 2.5291e-09 deg/d
Q 3.318987561279612 3.0537e-08 au
  Orbit Determination Parameters
   # obs. used (total)      741  
   data-arc span      6798 days (18.61 yr)  
   first obs. used      1999-10-08  
   last obs. used      2018-05-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55773  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-May-31 15:41:13  

Additional Information
 Earth MOID = 1.84524 au 
 Jupiter MOID = 2.00963 au 
 T_jup = 3.205 
[ 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 14.5   n/a MPO432455  

91809 (1999 TG248)          Discovered 1999-Oct-08 by CSS at Catalina
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Alternate Designations
 1999 TG248 = 2001 FT162 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jun-06 12:35 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin