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 ]  
91837 (1999 TB311)
Classification: Main-belt Asteroid          SPK-ID: 2091837
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0708446643532586 5.7833e-08  
a 2.922512999050868 2.0387e-08 au
q 2.715468546565074 1.6524e-07 au
i 3.312379563312077 3.954e-06 deg
node 92.50257870440161 0.00014306 deg
peri 206.5344684067979 0.00015874 deg
M 112.4991380600446 6.9797e-05 deg
tp 2458430.230954605737
(2018-Nov-07.73095461)
0.00035389 TDB
period 1824.874926884871
5.00
1.9095e-05
5.228e-08
d
yr
n .197273793779683 2.0643e-09 deg/d
Q 3.129557451536662 2.1832e-08 au
  Orbit Determination Parameters
   # obs. used (total)      749  
   data-arc span      9282 days (25.41 yr)  
   first obs. used      1994-09-05  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55843  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 22:37:49  

Additional Information
 Earth MOID = 1.7002 au 
 Jupiter MOID = 2.00996 au 
 T_jup = 3.273 
[ 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 14.7   n/a MPO359387  

91837 (1999 TB311)          Discovered 1999-Oct-05 by CSS at Catalina
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Alternate Designations
 1999 TB311 = 2000 WJ171 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Oct-26 08:30 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin