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
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
109896 (2001 SD18)
Classification: Main-belt Asteroid          SPK-ID: 2109896
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1372918536461492 6.6406e-08  
a 2.556765794427643 1.9897e-08 au
q 2.205742679171602 1.7288e-07 au
i 14.21877592264612 7.1937e-06 deg
node 15.55591947152722 1.4792e-05 deg
peri 183.9508309297121 2.1302e-05 deg
M 266.6000067473005 1.3899e-05 deg
tp 2458987.917462429241
(2020-May-18.41746243)
5.8801e-05 TDB
period 1493.257993040546
4.09
1.7431e-05
4.772e-08
d
yr
n .2410835915011406 2.8142e-09 deg/d
Q 2.907788909683683 2.2629e-08 au
  Orbit Determination Parameters
   # obs. used (total)      705  
   data-arc span      21539 days (58.97 yr)  
   first obs. used      1960-10-17  
   last obs. used      2019-10-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56138  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 12:54:46  

Additional Information
 Earth MOID = 1.20434 au 
 Jupiter MOID = 2.05113 au 
 T_jup = 3.381 
[ 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 15.1   n/a MPO381928  

109896 (2001 SD18)          Discovered 2001-Sep-16 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2019-Dec-14 10:55 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin