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 ]  
146197 (2000 TT61)
Classification: Main-belt Asteroid          SPK-ID: 2146197
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


[ revert to old Java-based viewer ]

Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08118267334107249 4.6743e-08  
a 3.10139818154905 2.6616e-08 au
q 2.849618386075757 1.4842e-07 au
i 11.19991346999057 4.8045e-06 deg
node 119.8425629881314 2.9045e-05 deg
peri 291.4553609839701 4.4047e-05 deg
M 185.6987873827549 3.4289e-05 deg
tp 2459966.401023999289
(2023-Jan-21.90102400)
0.00019526 TDB
period 1994.962418324225
5.46
2.5681e-05
7.031e-08
d
yr
n .1804545272097914 2.323e-09 deg/d
Q 3.353177977022343 2.8777e-08 au
  Orbit Determination Parameters
   # obs. used (total)      423  
   data-arc span      8045 days (22.03 yr)  
   first obs. used      1998-04-18  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58089  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 23:52:38  

Additional Information
 Earth MOID = 1.88532 au 
 Jupiter MOID = 1.94489 au 
 T_jup = 3.187 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457083.5 (2015-Mar-02.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08220300722661184 4.6602e-08  
q 2.84646994464376 1.4802e-07 au
tp 2457975.820411886950
(2017-Aug-10.32041189)
0.00018342 TDB
node 119.8580750834995 2.9049e-05 deg
peri 292.3173109119217 4.3797e-05 deg
i 11.1995067083795 4.8043e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      423  
   data-arc span      8045 days (22.03 yr)  
   first obs. used      1998-04-18  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58089  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 23:52:38  

Additional Information
 Jupiter MOID = 1.94489 au 
 T_jup = 3.187 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.171731263321152E-15 -6.802437340889539E-15 -1.60741614401657E-12 6.215624356639808E-15 -3.137765654101712E-13 -1.8769613581771E-16
q -6.802437340889539E-15 2.191069872267818E-14 6.431984293028896E-12 -1.68628185384796E-14 1.177554253870688E-12 1.567096929296353E-15
tp -1.60741614401657E-12 6.431984293028896E-12 3.364296381197623E-8 -5.744945532459043E-12 6.049308794056453E-9 5.845521494429089E-12
node 6.215624356639808E-15 -1.68628185384796E-14 -5.744945532459043E-12 8.438414057349365E-10 -8.285264808874207E-10 1.620661172488702E-11
peri -3.137765654101712E-13 1.177554253870688E-12 6.049308794056453E-9 -8.285264808874207E-10 1.918139424728693E-9 -1.490982389626844E-11
i -1.8769613581771E-16 1.567096929296353E-15 5.845521494429089E-12 1.620661172488702E-11 -1.490982389626844E-11 2.308135296612637E-11

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 15.1   n/a MPO475267  

146197 (2000 TT61)          Discovered 2000-Oct-02 by LONEOS at Anderson Mesa
Reference: 20070106/Numbers.arcLast Updated: 2007-01-09

[ show close-approach data ]
Alternate Designations
 2000 TT61 = 1998 HQ11 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-May-25 14:31 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin