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226156 (2002 SP31)
Classification: Main-belt Asteroid          SPK-ID: 2226156
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1221540881996947 4.2712e-08  
a 2.263826977652701 1.5528e-08 au
q 1.987291257355665 9.3896e-08 au
i 8.138784275757372 4.8639e-06 deg
node 130.0141477643909 4.3162e-05 deg
peri 170.7440188707922 5.1166e-05 deg
M 122.0620550597818 2.7653e-05 deg
tp 2458578.666127182207
(2019-Apr-05.16612718)
9.4771e-05 TDB
period 1244.122869634054
3.41
1.28e-05
3.504e-08
d
yr
n .289360487445979 2.9772e-09 deg/d
Q 2.540362697949738 1.7425e-08 au
  Orbit Determination Parameters
   # obs. used (total)      353  
   data-arc span      7797 days (21.35 yr)  
   first obs. used      1998-06-17  
   last obs. used      2019-10-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57032  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 00:50:04  

Additional Information
 Earth MOID = .972326 au 
 Jupiter MOID = 2.66091 au 
 T_jup = 3.595 
[ 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 16.6   n/a MPO437072  

226156 (2002 SP31)          Discovered 2002-Sep-28 by NEAT at Haleakala
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

Alternate Designations
 2002 SP31 = 2004 BZ146 = 2008 GE19 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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