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109939 (2001 SU40)
Classification: Main-belt Asteroid          SPK-ID: 2109939
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1160624810995729 4.2826e-08  
a 2.704232746640931 1.3567e-08 au
q 2.390372784595071 1.1179e-07 au
i 4.03087658547985 3.7018e-06 deg
node 118.5367168145541 6.3115e-05 deg
peri 260.6821093170597 6.5595e-05 deg
M 70.31581089313435 1.6188e-05 deg
tp 2458683.240221357086
(2019-Jul-18.74022136)
7.3135e-05 TDB
period 1624.293581496631
4.45
1.2224e-05
3.347e-08
d
yr
n .2216348104191204 1.6679e-09 deg/d
Q 3.01809270868679 1.5142e-08 au
  Orbit Determination Parameters
   # obs. used (total)      700  
   data-arc span      9515 days (26.05 yr)  
   first obs. used      1994-01-10  
   last obs. used      2020-01-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56003  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 03:36:09  

Additional Information
 Earth MOID = 1.39648 au 
 Jupiter MOID = 2.44635 au 
 T_jup = 3.353 
[ 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 15.5   n/a MPO502758  
diameter diameter 2.399 km 0.541 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.307   0.161 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

109939 (2001 SU40)          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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