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 ]  
91643 (1999 TX91)
Classification: Main-belt Asteroid          SPK-ID: 2091643
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06080669616977778 3.8882e-08  
a 2.97827187506884 2.2535e-08 au
q 2.797173002050535 1.1746e-07 au
i 11.7645764608635 4.5565e-06 deg
node 48.00550073528214 2.1932e-05 deg
peri 201.5174047871496 4.5486e-05 deg
M 117.3451388525613 3.9668e-05 deg
tp 2458388.561835140758
(2018-Sep-27.06183514)
0.00020756 TDB
period 1877.348661422787
5.14
2.1308e-05
5.834e-08
d
yr
n .1917597979520579 2.1765e-09 deg/d
Q 3.159370748087146 2.3906e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1239  
   data-arc span      7358 days (20.15 yr)  
   first obs. used      1999-09-08  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54061  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 10:57:01  

Additional Information
 Earth MOID = 1.78738 au 
 Jupiter MOID = 1.84717 au 
 T_jup = 3.226 
[ 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 13.7   n/a MPO359384  

91643 (1999 TX91)          Discovered 1999-Oct-02 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ 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 2020-Feb-22 11:45 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin