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 ]  
437771 (2015 AC198)
Classification: Main-belt Asteroid          SPK-ID: 2437771
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08100198892858201 8.8889e-08  
a 2.661338805330905 5.8305e-08 au
q 2.445765068886286 2.6607e-07 au
i 6.464490165606422 6.9483e-06 deg
node 116.9502730126111 7.748e-05 deg
peri 248.2818898034224 9.279e-05 deg
M 196.7898566569686 6.1253e-05 deg
tp 2459719.441117016316
(2022-May-19.94111702)
0.00028626 TDB
period 1585.800960801156
4.34
5.2113e-05
1.427e-07
d
yr
n .2270146184159996 7.4602e-09 deg/d
Q 2.876912541775525 6.3028e-08 au
  Orbit Determination Parameters
   # obs. used (total)      100  
   data-arc span      3892 days (10.66 yr)  
   first obs. used      2009-09-28  
   last obs. used      2020-05-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .68928  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 09:34:35  

Additional Information
 Earth MOID = 1.45193 au 
 Jupiter MOID = 2.51623 au 
 T_jup = 3.372 
[ 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 16.9   n/a MPO419197  

437771 (2015 AC198)          Discovered 2009-Sep-28 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2015-06-04

Alternate Designations
 2015 AC198 = 2009 WR146 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Dec-03 23:48 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin