Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1094254769445979 3.8112e-08  
a 3.076320233015429 2.1798e-08 au
q 2.739692424283399 1.2011e-07 au
i 11.28826449012126 4.8472e-06 deg
node 175.4001419994855 2.1043e-05 deg
peri 131.6076389912743 3.0119e-05 deg
M 217.998681715216 2.2623e-05 deg
tp 2459777.884030973593
(2022-Jul-17.38403097)		 0.00012696 TDB
period 1970.814458139304
5.40		 2.0947e-05
5.735e-08		 d
yr
n .1826655972170435 1.9415e-09 deg/d
Q 3.412948041747459 2.4183e-08 au
   Orbit Determination Parameters
   # obs. used (total)      638  
   data-arc span      8567 days (23.46 yr)  
   first obs. used      1996-11-07  
   last obs. used      2020-04-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57199  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 19:10:40  

Additional Information
 Earth MOID = 1.74125 au 
 Jupiter MOID = 1.96162 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 ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Aug-04 11:17 UT
(server date/time)   		NASA Home Page
Site Manager:   Ryan S. Park
Webmaster:   Alan B. Chamberlin