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308825 Siksika (2006 RH3)
Classification: Main-belt Asteroid          SPK-ID: 2308825
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbit Diagram
Note: Make sure you have Java enabled on your browser to see the applet. This applet is provided as a 3D orbit visualization tool. The applet was implemented using 2-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances. For accurate long-term ephemerides, please instead use our Horizons system.

Note: If the applet has stopped working because of a recent Java upgrade, here is a possible workaround.
Orbit Viewer

Additional Notes: the orbits shown in the applet are color coded. The planets are white lines, and the asteroid/comet is a blue line. The bright white line indicates the portion of the orbit that is above the ecliptic plane, and the darker portion is below the ecliptic plane. Likewise for the asteroid/comet orbit, the light blue indicates the portion above the ecliptic plane, and the dark blue the portion below the ecliptic plane.

Orbit Viewer applet originally written and kindly provided by Osamu Ajiki (AstroArts), and further modified by Ron Baalke (JPL).


Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09070149099416543 1.2672e-07  
a 2.763749936479599 1.4536e-07 AU
q 2.513073696505869 3.3938e-07 AU
i 12.39860520615273 1.449e-05 deg
node 111.2924911123911 9.3984e-05 deg
peri 315.4993363596111 0.00017491 deg
M 244.2015844357092 0.00016665 deg
tp 2457540.317129659864
(2016-May-31.81712966)
0.00080937 JED
period 1678.210930007566
4.59
0.0001324
3.625e-07
d
yr
n .2145141552607914 1.6923e-08 deg/d
Q 3.014426176453329 1.5854e-07 AU
  Orbit Determination Parameters
   # obs. used (total)      112  
   data-arc span      4251 days (11.64 yr)  
   first obs. used      2001-09-11  
   last obs. used      2013-05-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .69951  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-12 13:33:29  

Additional Information
 Earth MOID = 1.54317 AU 
 T_jup = 3.300 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.8 mag n/a MPO264774  

308825 Siksika           Discovered 2006 Sept. 14 by D. D. Balam at Mauna Kea.
Siksika Nation is one of the three First Nations, with the Piikani (Peigan) and Kainai (Blood), that comprise the Blackfoot Confederacy. It is a signatory to the 1877 Treaty 7, signed by Chief Crowfoot. Their territories include Southern Alberta, Saskatchewan and Northern Montana.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20120831/MPCPages.arcLast Updated: 2012-09-04

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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