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JPL Small-Body Database Browser
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379217 (2009 SY156)
Classification: Main-belt Asteroid          SPK-ID: 2379217
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1968867338330751 1.9888e-07  
a 2.470931875820655 3.6426e-08 au
q 1.984438169266293 4.6951e-07 au
i 1.971157759071453 9.1528e-06 deg
node 147.3103195063352 0.00045712 deg
peri 238.4656579130855 0.0004601 deg
M 158.7320954442125 5.022e-05 deg
tp 2457974.964684389360
(2017-Aug-09.46468439)
0.00018804 TDB
period 1418.696785861912
3.88
3.1371e-05
8.589e-08
d
yr
n .253754011137261 5.6111e-09 deg/d
Q 2.957425582375017 4.3597e-08 au
  Orbit Determination Parameters
   # obs. used (total)      81  
   data-arc span      5939 days (16.26 yr)  
   first obs. used      2001-08-23  
   last obs. used      2017-11-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60761  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Dec-07 18:36:51  

Additional Information
 Earth MOID = .988647 au 
 Jupiter MOID = 2.49118 au 
 T_jup = 3.456 
[ 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 17.9   n/a E2013V23  

379217 (2009 SY156)          Discovered 2009-Sep-20 by Spacewatch at Kitt Peak
Reference: Last Updated: 2013-11-20

Alternate Designations
 2009 SY156 = 2001 QH176 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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