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226158 (2002 SP44)
Classification: Main-belt Asteroid          SPK-ID: 2226158
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.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2043144302020925 3.9989e-08  
a 2.312124744909153 1.3774e-08 au
q 1.839724295096881 9.6931e-08 au
i 6.355893278793864 6.6541e-06 deg
node 24.52389543643734 4.0856e-05 deg
peri 287.1768840806515 4.6328e-05 deg
M 53.11706778714993 1.7878e-05 deg
tp 2458811.027183327820
(2019-Nov-23.52718333)
6.3671e-05 TDB
period 1284.148708571712
3.52
1.1475e-05
3.142e-08
d
yr
n .2803413635796186 2.505e-09 deg/d
Q 2.784525194721425 1.6588e-08 au
  Orbit Determination Parameters
   # obs. used (total)      264  
   data-arc span      6608 days (18.09 yr)  
   first obs. used      2001-05-22  
   last obs. used      2019-06-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6252  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 02:34:17  

Additional Information
 Earth MOID = .838181 au 
 Jupiter MOID = 2.52098 au 
 T_jup = 3.548 
[ 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 16.9   n/a MPO437072  

226158 (2002 SP44)          Discovered 2002-Sep-29 by NEAT at Haleakala
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

Alternate Designations
 2002 SP44 = 2009 SA275 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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