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 ]  
246687 (2009 AD)
Classification: Main-belt Asteroid          SPK-ID: 2246687
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


[ revert to old Java-based viewer ]

Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1811020846041535 4.4644e-08  
a 2.456923660004397 1.2131e-08 au
q 2.011969663464334 1.1119e-07 au
i .4783497860107724 5.0751e-06 deg
node 293.7681719647898 0.00071629 deg
peri 108.0986678755703 0.00071661 deg
M 37.08862288327659 1.9678e-05 deg
tp 2458855.581400603090
(2020-Jan-07.08140060)
7.7005e-05 TDB
period 1406.6495794971
3.85
1.0418e-05
2.852e-08
d
yr
n .2559272794356543 1.8954e-09 deg/d
Q 2.90187765654446 1.4328e-08 au
  Orbit Determination Parameters
   # obs. used (total)      387  
   data-arc span      9396 days (25.72 yr)  
   first obs. used      1994-03-10  
   last obs. used      2019-11-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61765  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 16:37:15  

Additional Information
 Earth MOID = 1.02051 au 
 Jupiter MOID = 2.50218 au 
 T_jup = 3.469 
[ 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 17.0   n/a MPO494346  

246687 (2009 AD)          Discovered 2009-Jan-01 by Lowe, A. at Mayhill
Reference: 20100726/Numbers.arcLast Updated: 2010-07-28

Alternate Designations
 2009 AD = 2004 XS100 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Sep-25 14:47 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin