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216172 (2006 ST408)
Classification: Main-belt Asteroid          SPK-ID: 2216172
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .115384382611674 7.2423e-08  
a 2.856811936397176 3.2599e-08 au
q 2.527180454878327 2.2557e-07 au
i 16.25087300012575 5.788e-06 deg
node 97.64213585852571 2.7767e-05 deg
peri 332.5861002818378 4.4163e-05 deg
M 354.8738672978503 3.6632e-05 deg
tp 2459421.613558122460
(2021-Jul-26.11355812)
0.00017958 TDB
period 1763.684525820825
4.83
3.0188e-05
8.265e-08
d
yr
n .2041181371892202 3.4938e-09 deg/d
Q 3.186443417916025 3.6361e-08 au
  Orbit Determination Parameters
   # obs. used (total)      201  
   data-arc span      7880 days (21.57 yr)  
   first obs. used      1999-03-22  
   last obs. used      2020-10-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .62094  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:53:44  

Additional Information
 Earth MOID = 1.55222 au 
 Jupiter MOID = 2.07367 au 
 T_jup = 3.235 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.68   n/a E2021B55  

216172 (2006 ST408)          Discovered 2006-Sep-19 by CSS at Catalina
Reference: 20090607/Numbers.arcLast Updated: 2009-06-08
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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