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 ]  
249940 (2001 TL166)
Classification: Main-belt Asteroid          SPK-ID: 2249940
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1685034498180127 4.5074e-08  
a 2.758538541258494 2.0138e-08 au
q 2.29371528060049 1.3039e-07 au
i 7.542856391573239 4.9704e-06 deg
node 287.3503069141468 4.7368e-05 deg
peri 161.2590094153041 5.1431e-05 deg
M 258.6995504569763 2.0166e-05 deg
tp 2459071.396955877118
(2020-Aug-09.89695588)
9.5983e-05 TDB
period 1673.466454300024
4.58
1.8325e-05
5.017e-08
d
yr
n .2151223283113736 2.3556e-09 deg/d
Q 3.223361801916499 2.3531e-08 au
  Orbit Determination Parameters
   # obs. used (total)      346  
   data-arc span      7061 days (19.33 yr)  
   first obs. used      2000-07-02  
   last obs. used      2019-11-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51615  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 18:49:34  

Additional Information
 Earth MOID = 1.31172 au 
 Jupiter MOID = 1.98349 au 
 T_jup = 3.309 
[ 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 16.0   n/a MPO367675  
diameter diameter 4.161 km 0.229 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.064   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

249940 (2001 TL166)          Discovered 2001-Oct-15 by LINEAR at Socorro
Reference: 20100923/Numbers.arcLast Updated: 2010-09-27

[ 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 2019-Dec-09 00:06 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin