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 ]  
4262 DeVorkin (1989 CO)
Classification: Main-belt Asteroid          SPK-ID: 2004262
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2204458124460087 6.9495e-08  
a 2.300872689794498 1.219e-08 AU
q 1.793654940357917 1.6204e-07 AU
i 7.327897896949142 7.9221e-06 deg
node 129.2539155405262 5.4128e-05 deg
peri 184.1424429990069 5.6737e-05 deg
M 277.5847350283726 1.929e-05 deg
tp 2457092.338422593025
(2015-Mar-10.83842259)
6.9127e-05 JED
period 1274.786074760035
3.49
1.0131e-05
2.774e-08
d
yr
n .2824003235741073 2.2442e-09 deg/d
Q 2.80809043923108 1.4877e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1009  
   data-arc span      30105 days (82.42 yr)  
   first obs. used      1931-10-10  
   last obs. used      2014-03-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54509  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Mar-22 10:44:04  

Additional Information
 Earth MOID = .7787 AU 
 T_jup = 3.548 
[ 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 12.7 mag n/a MPO263385  

4262 DeVorkin           Discovered 1989 Feb. 5 by M. Arai and H. Mori at Yorii.
David H. DeVorkin (b. 1944), Chair of the Historical Astronomy Division of the American Astronomical Society (1997-1999), wrote the definitive biography of astronomer Henry Norris Russell. DeVorkin has been the Curator at the Smithsonian National Air and Space Museum since 1981.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20120406/MPCPages.arcLast Updated: 2012-04-09

[ show close-approach data ]
Alternate Designations
 1989 CO = 1931 TH3 = 1955 KA = 1955 MD = 1976 NF 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2014-Apr-16 19:09 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin