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JPL Small-Body Database Browser
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109923 (2001 SF31)
Classification: Main-belt Asteroid          SPK-ID: 2109923
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1090810093817762 3.8099e-08  
a 3.077289533170733 2.3918e-08 au
q 2.741615684732495 1.2037e-07 au
i 11.28579002137262 5.5726e-06 deg
node 175.4140584256375 2.5667e-05 deg
peri 131.4912181038426 3.996e-05 deg
M 145.0759478190461 2.8767e-05 deg
tp 2457805.908559916712
(2017-Feb-21.40855992)
0.00015813 TDB
period 1971.745990498568
5.40
2.2988e-05
6.294e-08
d
yr
n .1825792986189727 2.1287e-09 deg/d
Q 3.412963381608972 2.6527e-08 au
  Orbit Determination Parameters
   # obs. used (total)      561  
   data-arc span      8396 days (22.99 yr)  
   first obs. used      1996-11-07  
   last obs. used      2019-11-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60291  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 10:18:38  

Additional Information
 Earth MOID = 1.74238 au 
 Jupiter MOID = 1.96006 au 
 T_jup = 3.190 
[ 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 14.9   n/a MPO338043  
diameter diameter 3.574 km 1.349 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.182   0.094 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

109923 (2001 SF31)          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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