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 ]  
44029 (1998 BK4)
Classification: Main-belt Asteroid          SPK-ID: 2044029
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2134221513130586 6.3427e-08  
a 2.258458570718212 1.1506e-08 AU
q 1.776453483904116 1.462e-07 AU
i 3.817170941060831 6.3126e-06 deg
node 110.3793329107713 9.7948e-05 deg
peri 75.02698866114983 9.9296e-05 deg
M 314.0513262450614 1.5012e-05 deg
tp 2457158.729370056089
(2015-May-16.22937006)
5.2017e-05 JED
period 1239.700051496478
3.39
9.4739e-06
2.594e-08
d
yr
n .2903928249139246 2.2192e-09 deg/d
Q 2.740463657532309 1.3962e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      519  
   data-arc span      6290 days (17.22 yr)  
   first obs. used      1997-12-04  
   last obs. used      2015-02-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .57857  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Mar-09 16:14:18  

Additional Information
 Earth MOID = .784174 AU 
 T_jup = 3.588 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.8 mag n/a MPO319612  

44029 (1998 BK4)          Discovered 1998-Jan-21 by Shimizu, Y., Urata, T. at Nachi-Katsuura
Reference: 20020822/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 BK4 = 2000 YW65 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2015-Mar-29 20:49 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin