Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Near-Earth Object (NEO) Project
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 ]  
3900 Knezevic (1985 RK)
Classification: Main-belt Asteroid          SPK-ID: 2003900
[ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2455400.5 (2010-Jul-23.0) TDB
Reference: MPO169567 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e 0.1382082 n/a  
a 2.3701898 n/a AU
q 2.0426101 n/a AU
i 6.72592 n/a deg
node 338.28292 n/a deg
peri 55.48382 n/a deg
M 260.07361 n/a deg
tp 2455770.4566365
(2011-Jul-27.95663651)		 n/a JED
period 1332.8249840
3.65		 n/a
n/a		 d
yr
n 0.27010298 n/a deg/d
Q 2.6977695 n/a AU
   Orbit Determination Parameters
   # obs. used (total)      747  
   first obs. used      1982-??-??  
   last obs. used      2009-05-20  
   # oppositions      15  
   planetary ephem.      DE403  
   condition code      0  
   fit RMS      0.55  
   data source      MPC:mpn  
   producer      MPCALB  

Additional Information
 T_jup = 3.523 

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.6 mag n/a PDS3 (MPC 17270)  
SMASSII spectral type spec_B V   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

3900 Knezevic (1985 RK)          Discovered 1985-Sep-14 by Bowell, E. at Flagstaff (AM) (688)
Discovered at the Anderson Mesa station, which is operated by the Lowell Observatory.
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1985 RK = 1974 QS1 = 1974 RE2 
[ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2010-Jun-05 05:59 UT
(server date/time)   		NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster:   Alan B. Chamberlin