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 ]  
8996 Waynedwards (1981 EC10)
Classification: Main-belt Asteroid          SPK-ID: 2008996
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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1429140050872515 3.537e-08  
a 3.082955498237118 1.8398e-08 au
q 2.642357980478288 1.1078e-07 au
i 6.959816981956584 4.7481e-06 deg
node 210.0242511525637 2.8743e-05 deg
peri 38.72332042603259 3.2455e-05 deg
M 94.55411545803777 1.5074e-05 deg
tp 2458877.189329812195
(2020-Jan-28.68932981)
8.1545e-05 TDB
period 1977.19412171517
5.41
1.7699e-05
4.846e-08
d
yr
n .1820762038720348 1.6299e-09 deg/d
Q 3.523553015995947 2.1028e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1295  
   data-arc span      15275 days (41.82 yr)  
   first obs. used      1978-10-28  
   last obs. used      2020-08-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54393  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 21:02:46  

Additional Information
 Earth MOID = 1.63356 au 
 Jupiter MOID = 1.50907 au 
 T_jup = 3.200 
[ 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 14.27   n/a E2021B10  
diameter diameter 7.343 km 0.245 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 30.5923 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.075   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

8996 Waynedwards           Discovered 1981 Mar. 1 by S. J. Bus at Siding Spring.
Wayne N. Edwards (b. 1977) is a research scientist with the Canadian Hazards Information Service. An expert on seismic and atmospheric infrasound analysis of bolides, he helped analyze the flux and energy of the Chelyabinsk airburst.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2014-07-12Last Updated: 2014-08-13

[ 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-Aug-03 18:19 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin