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 ]  
418849 (2008 WM64)
Classification: Apollo [NEO, PHA]          SPK-ID: 2418849
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ 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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 76 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1064507702112606 5.3966e-08  
a 1.00546001977064 4.3037e-10 au
q .8984280262494263 5.4232e-08 au
i 33.52735567677117 1.3055e-05 deg
node 91.44813644943147 1.1444e-06 deg
peri 256.6124613884543 3.2306e-06 deg
M 78.07298546039173 9.2954e-06 deg
tp 2459120.637312185033
(2020-Sep-28.13731219)
9.4835e-06 TDB
period 368.2524428116554
1.01
2.3643e-07
6.473e-10
d
yr
n .9775902564321177 6.2766e-10 deg/d
Q 1.112492013291855 4.7618e-10 au
  Orbit Determination Parameters
   # obs. used (total)      305  
   # delay obs. used      3  
   # Doppler obs. used      3  
   data-arc span      4436 days (12.15 yr)  
   first obs. used      2008-11-24  
   last obs. used      2021-01-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .37975  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 20:38:38  

Additional Information
 Earth MOID = .0348616 au 
 Jupiter MOID = 4.09537 au 
 T_jup = 5.904 
[ 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 20.6   n/a MPO434525  
rotation period rot_per 2.4055 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Rowe, B. (2018) Minor Planet Bull. 45, 292-294.]
[Warner, B.D. (2018) Minor Planet Bull. 45, 138-147.]

418849 (2008 WM64)          Discovered 2008-Nov-24 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2015-01-07

[ 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 2021-Feb-25 08:40 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin