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328627 (2009 SW170)
Classification: Main-belt Asteroid          SPK-ID: 2328627
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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1781475493643506 1.142e-07  
a 2.720834296783103 1.9024e-08 au
q 2.236124334584717 3.0986e-07 au
i 12.17594300742674 1.1054e-05 deg
node 28.05170337747986 2.7684e-05 deg
peri 339.2619797667294 3.2245e-05 deg
M 136.103538796483 1.4399e-05 deg
tp 2458380.747220110549
(2018-Sep-19.24722011)
6.5258e-05 TDB
period 1639.274061006029
4.49
1.7193e-05
4.707e-08
d
yr
n .2196094042865941 2.3032e-09 deg/d
Q 3.205544258981489 2.2413e-08 au
  Orbit Determination Parameters
   # obs. used (total)      228  
   data-arc span      10350 days (28.34 yr)  
   first obs. used      1991-09-30  
   last obs. used      2020-01-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57346  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 20:40:04  

Additional Information
 Earth MOID = 1.24037 au 
 Jupiter MOID = 2.26471 au 
 T_jup = 3.304 
[ 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 16.5   n/a MPO455422  

328627 (2009 SW170)          Discovered 2009-Sep-27 by Lowe, A. at Mayhill
Reference: 20120506/Numbers.arcLast Updated: 2012-05-09

Alternate Designations
 2009 SW170 = 2000 TZ47 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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