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JPL Small-Body Database Browser
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441538 (2008 SA308)
Classification: Main-belt Asteroid          SPK-ID: 2441538
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.


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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2171892589249972 5.744e-08  
a 2.381720328023466 2.0772e-08 au
q 1.864436255013449 1.284e-07 au
i 3.064234014131769 6.1457e-06 deg
node 163.9151053454108 8.2207e-05 deg
peri 173.9092175362286 8.47e-05 deg
M 348.348921433116 1.5916e-05 deg
tp 2458643.950842532325
(2019-Jun-09.45084253)
5.9503e-05 TDB
period 1342.562683947337
3.68
1.7564e-05
4.809e-08
d
yr
n .2681439044183364 3.5079e-09 deg/d
Q 2.899004401033484 2.5284e-08 au
  Orbit Determination Parameters
   # obs. used (total)      142  
   data-arc span      8025 days (21.97 yr)  
   first obs. used      1997-11-08  
   last obs. used      2019-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48523  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 15:57:33  

Additional Information
 Earth MOID = .854421 au 
 Jupiter MOID = 2.48978 au 
 T_jup = 3.504 
[ 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 17.7   n/a MPO446751  

441538 (2008 SA308)          Discovered 2008-Sep-29 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-09-02
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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