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186991 (2004 TS8)
Classification: Main-belt Asteroid          SPK-ID: 2186991
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2287791010680388 4.1714e-08  
a 3.105267847930928 3.0546e-08 au
q 2.394847461105806 1.3629e-07 au
i 28.48803323675559 5.259e-06 deg
node 130.5690330892533 1.0792e-05 deg
peri 225.3663006203089 1.5687e-05 deg
M 56.73030523562093 1.2062e-05 deg
tp 2459081.536921751865
(2020-Aug-20.03692175)
6.6021e-05 TDB
period 1998.697304701492
5.47
2.9491e-05
8.074e-08
d
yr
n .1801173189923155 2.6577e-09 deg/d
Q 3.815688234756049 3.7534e-08 au
  Orbit Determination Parameters
   # obs. used (total)      756  
   data-arc span      7701 days (21.08 yr)  
   first obs. used      2000-01-08  
   last obs. used      2021-02-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49566  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 02:46:18  

Additional Information
 Earth MOID = 1.44736 au 
 Jupiter MOID = 1.75854 au 
 T_jup = 2.998 
[ 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 14.44   n/a E2021B55  

186991 (2004 TS8)          Discovered 2004-Oct-06 by LINEAR at Socorro
Reference: 20080520/Numbers.arcLast Updated: 2008-05-22

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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1968-Jan-04 21:33 00:02 Jupiter 1.78966370371092 1.78966271725424 1.78966469021726 6.64978209406483 6.57822393919372 2439860.397873410 1.61529607950076 537.195098383507 22.5234974544119 -85.3495660457976 3979468.55118989 T 24 CATAB v2.0g-lin.ifort 2021-Jul-09 02:46:20 2021-Jul-09 02:46
2039-Feb-14 22:11 < 00:01 Jupiter 1.78089234477437 1.78089178327498 1.78089290627963 6.64422373192611 6.57225038956866 2465834.424506424 0.861929556772254 295.980685724371 22.8704609492586 -87.0056856903067 3993402.97776638 T 24 CATAB v2.0g-lin.ifort 2021-Jul-09 02:46:20 2021-Jul-09 02:46
2110-Mar-30 21:33 00:03 Jupiter 1.77470397238079 1.77470286525005 1.77470507972922 6.63848679476983 6.56619799931603 2491810.398033903 3.26791795367051 1085.42833660651 22.5107530574795 -87.3394964337656 4037235.50202034 T 24 CATAB v2.0g-lin.ifort 2021-Jul-09 02:46:20 2021-Jul-09 02:46
2181-May-15 07:03 00:06 Jupiter 1.7782953825484 1.77829379875773 1.77829696707324 6.63017059541033 6.55793711146696 2517788.793740369 5.7823034075892 1894.00215816566 22.3739587334372 -87.7001253664866 4083952.27891281 T 24 CATAB v2.0g-lin.ifort 2021-Jul-09 02:46:20 2021-Jul-09 02:46
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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