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
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
8331 Dawkins (1982 KK1)
Classification: Main-belt Asteroid          SPK-ID: 2008331
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.


[ revert to old Java-based viewer ]

Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09882945960689664 3.1107e-08  
a 2.274446352496079 7.406e-09 au
q 2.049664048574015 6.958e-08 au
i 4.97448826970203 3.255e-06 deg
node 96.50458402356155 4.7889e-05 deg
peri 205.2616975863023 5.327e-05 deg
M 336.5415487772243 2.4961e-05 deg
tp 2459082.141092577359
(2020-Aug-20.64109258)
8.6947e-05 TDB
period 1252.887202515485
3.43
6.1195e-06
1.675e-08
d
yr
n .2873363214798664 1.4034e-09 deg/d
Q 2.499228656418144 8.138e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2330  
   data-arc span      25628 days (70.17 yr)  
   first obs. used      1949-11-25  
   last obs. used      2020-01-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46852  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 18:51:51  

Additional Information
 Earth MOID = 1.0353 au 
 Jupiter MOID = 2.66106 au 
 T_jup = 3.599 
[ 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 13.8   n/a MPO365349  
diameter diameter 4.766 km 0.134 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.258   0.057 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

8331 Dawkins           Discovered 1982 May 27 by C. S. Shoemaker and S. J. Bus at Palomar.
Richard Dawkins (b. 1941), chaired professor at Oxford University, is the author of the seminal work The Selfish Gene (1976) and other best-selling books on science and evolution. His novel concept of the ethology of genes revolutionized the study of evolution and animal behavior. He is the husband of actress Lalla Ward.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20001013/MPCPages.arcLast Updated: 2013-03-29

[ show close-approach data ]
Alternate Designations
 1982 KK1 = 1993 SX1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Apr-08 18:54 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin