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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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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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457650.5 (2016-Sep-19.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .231323767439801 4.166e-08  
q 2.384894315111801 1.3654e-07 au
tp 2457084.659840725014
(2015-Mar-03.15984072)
6.6605e-05 TDB
node 130.7156144556249 1.0813e-05 deg
peri 225.3989510602745 1.5599e-05 deg
i 28.47962366989939 5.2563e-06 deg
  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
 Jupiter MOID = 1.75854 au 
 T_jup = 2.998 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.735521849232521E-15 -5.606906962745779E-15 3.003956308173112E-13 1.410981647660312E-15 4.295987329500875E-14 -3.833469360356821E-15
q -5.606906962745779E-15 1.864451711807996E-14 -1.3650549775039E-12 -3.045056483161514E-15 -1.762327987287395E-13 1.686969465592429E-14
tp 3.003956308173112E-13 -1.3650549775039E-12 4.436270487870971E-9 -1.237491938549017E-12 7.826768498273666E-10 -7.99109560491062E-13
node 1.410981647660312E-15 -3.045056483161514E-15 -1.237491938549017E-12 1.169268606878415E-10 -1.02432625749706E-10 -7.959757654844884E-12
peri 4.295987329500875E-14 -1.762327987287395E-13 7.826768498273666E-10 -1.02432625749706E-10 2.433266699005137E-10 7.049060009546597E-12
i -3.833469360356821E-15 1.686969465592429E-14 -7.99109560491062E-13 -7.959757654844884E-12 7.049060009546597E-12 2.762894099087485E-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 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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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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