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JPL Small-Body Database Browser
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109947 (2001 SM44)
Classification: Main-belt Asteroid          SPK-ID: 2109947
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2062456819007809 5.6487e-08  
a 2.447108482625127 1.6598e-08 au
q 1.942402924940922 1.402e-07 au
i 3.708998243562842 6.4337e-06 deg
node 117.4938581425043 9.161e-05 deg
peri 229.6318072860719 9.3703e-05 deg
M 225.1513213661676 2.6137e-05 deg
tp 2459124.248093388546
(2020-Oct-01.74809339)
0.00010567 TDB
period 1398.228855707683
3.83
1.4226e-05
3.895e-08
d
yr
n .2574685814346135 2.6196e-09 deg/d
Q 2.951814040309331 2.0022e-08 au
  Orbit Determination Parameters
   # obs. used (total)      381  
   data-arc span      9411 days (25.77 yr)  
   first obs. used      1993-07-19  
   last obs. used      2019-04-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58019  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 10:03:22  

Additional Information
 Earth MOID = .936962 au 
 Jupiter MOID = 2.46519 au 
 T_jup = 3.466 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.9   n/a MPO432620  

109947 (2001 SM44)          Discovered 2001-Sep-16 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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