Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Near-Earth Object (NEO) Program
Search JPL
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 ]  
18024 Dobson (1999 KK4)
Classification: Main-belt Asteroid          SPK-ID: 2018024
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06906242869525897 7.0014e-08  
a 3.188101607436877 3.8749e-08 AU
q 2.967923567500027 2.2802e-07 AU
i 9.539071991405915 7.8214e-06 deg
node 182.6179555096952 3.6653e-05 deg
peri 41.35332067217298 6.2218e-05 deg
M 278.8127829681282 5.3628e-05 deg
tp 2457469.401705368597
(2016-Mar-21.90170537)
0.00031343 JED
period 2079.201875665068
5.69
3.7907e-05
1.038e-07
d
yr
n .1731433605430198 3.1567e-09 deg/d
Q 3.408279647373727 4.1425e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      695  
   data-arc span      7660 days (20.97 yr)  
   first obs. used      1993-03-29  
   last obs. used      2014-03-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .61734  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-09 22:00:15  

Additional Information
 Earth MOID = 1.96996 AU 
 T_jup = 3.172 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.8 mag n/a MPO279704  

18024 Dobson           Discovered 1999 May 20 by J. M. Roe at Oaxaca.
John Dobson (b. 1915) is one of the most important popularizers of astronomy of the twentieth century. His telescope design has spread around the world and enabled amateur astronomers to use larger apertures than before. He demonstrates a passion for sharing his knowledge of the universe with the public at large.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20011101/MPCPages.arcLast Updated: 2009-05-11

[ show close-approach data ]
Alternate Designations
 1999 KK4 = 1995 UD27 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2014-Oct-31 07:04 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin