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428694 Saule (2008 OS9)
Classification: Apollo [NEO]          SPK-ID: 2428694
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.


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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 54 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6484240746705456 8.3043e-08  
a 1.601223567840017 1.7587e-08 au
q .5629516575226843 1.3077e-07 au
i 19.13293421389943 1.3401e-05 deg
node 133.4656518881294 9.0205e-06 deg
peri 288.27357453 1.4975e-05 deg
M 73.86556155074688 2.5064e-05 deg
tp 2458448.649617402895
(2018-Nov-26.14961740)
4.9138e-05 TDB
period 740.0761137841092
2.03
1.2193e-05
3.338e-08
d
yr
n .4864364533524415 8.014e-09 deg/d
Q 2.639495478157349 2.899e-08 au
  Orbit Determination Parameters
   # obs. used (total)      567  
   data-arc span      3902 days (10.68 yr)  
   first obs. used      2008-07-25  
   last obs. used      2019-04-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .35031  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Apr-02 07:06:30  

Additional Information
 Earth MOID = .0574326 au 
 Jupiter MOID = 2.93134 au 
 T_jup = 4.048 
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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 19.4   n/a MPO241936  
rotation period rot_per 8.430 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Cernis, K.; Eglitis, I.; Wlodarczyk, I.; Zdanavicius, J.; Zdanavicius, K. (2010) Baltic Astronomy 19, 235-263.]

428694 Saule (2008 OS9)          Discovered 2008-Jul-29 by Cernis, K., Eglitis, I. at Baldone
Reference: Last Updated: 2015-03-09

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