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 ]  
447297 (2005 WM78)
Classification: Main-belt Asteroid          SPK-ID: 2447297
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07161163165744562 6.3096e-08  
a 3.080720244223761 5.742e-08 au
q 2.860104840854773 2.3161e-07 au
i 13.36976694583231 9.1736e-06 deg
node 68.65672583549731 2.4524e-05 deg
peri 246.2208665683667 7.7855e-05 deg
M 2.808982353883791 6.9628e-05 deg
tp 2458985.089265771037
(2020-May-15.58926577)
0.00038212 TDB
period 1975.044205869049
5.41
5.5218e-05
1.512e-07
d
yr
n .182274401216045 5.096e-09 deg/d
Q 3.301335647592748 6.1532e-08 au
  Orbit Determination Parameters
   # obs. used (total)      141  
   data-arc span      4991 days (13.66 yr)  
   first obs. used      2005-11-25  
   last obs. used      2019-07-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56345  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 07:49:00  

Additional Information
 Earth MOID = 1.87654 au 
 Jupiter MOID = 1.90022 au 
 T_jup = 3.182 
[ 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 15.8   n/a MPO437739  

447297 (2005 WM78)          Discovered 2005-Nov-25 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-10-28

[ 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-05 05:13 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin