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 ]  
4425 Bilk (1967 UQ)
Classification: Main-belt Asteroid          SPK-ID: 2004425
[ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB
Reference: MPO244218 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e 0.1629464 n/a  
a 2.3602881 n/a AU
q 1.9756877 n/a AU
i 3.31172 n/a deg
node 67.91362 n/a deg
peri 51.60095 n/a deg
M 158.72498 n/a deg
tp 2455816.5324239
(2011-Sep-12.03242390)		 n/a JED
period 1324.4816751
3.63		 n/a
n/a		 d
yr
n 0.27180444 n/a deg/d
Q 2.7448885 n/a AU
   Orbit Determination Parameters
   # obs. used (total)      1002  
   first obs. used      1952-??-??  
   last obs. used      2012-07-30  
   # oppositions      16  
   planetary ephem.      DE403  
   condition code      0  
   fit RMS      0.54  
   data source      MPC:mpn  
   producer      MPCLINUX  

Additional Information
 T_jup = 3.531 

[ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.8 mag n/a PDS3 (MPC 28111)  
rotation period rot_per 5.251 h n/a Asteroid Lightcurve DataBase (Rev. 2013-May-01) Published Reference List:
[Warner, B.D. (2008) Minor Planet Bul. 35, 163-167.]

4425 Bilk           Discovered 1967 Oct. 30 by L. Kohoutek at Bergedorf.
Bilk is the district in the city of Düsseldorf where in 1843 Johann Benzenberg established a private observatory that he bequeathed to the city. C. Robert Luther discovered 24 minor planets from the observatory at Bilk during 1852-1890. The observatory was destroyed in 1943.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20070730/MPCPages.arcLast Updated: 2007-08-07

Alternate Designations
 1967 UQ = 1983 EQ1 = 1985 VE3 
[ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2013-May-21 16:28 UT
(server date/time)   		NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster:   Alan B. Chamberlin