Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP

Significant website upgrade scheduled for September 27. More details available here.

JPL Small-Body Database Browser
Search: [ help ]  
85009 (2004 BL4)
Classification: Main-belt Asteroid          SPK-ID: 2085009
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1268727269894475 3.5456e-08  
a 2.650824634247349 1.2537e-08 au
q 2.314507284129583 9.3688e-08 au
i 5.148412291784588 3.895e-06 deg
node 108.1286719005176 4.2596e-05 deg
peri 249.5013008336443 4.5419e-05 deg
M 135.2748307456605 1.4832e-05 deg
tp 2458804.141776336553
(2019-Nov-16.64177634)
6.4677e-05 TDB
period 1576.412695128667
4.32
1.1183e-05
3.062e-08
d
yr
n .2283665953163469 1.62e-09 deg/d
Q 2.987141984365115 1.4127e-08 au
  Orbit Determination Parameters
   # obs. used (total)      712  
   data-arc span      8208 days (22.47 yr)  
   first obs. used      1998-11-21  
   last obs. used      2021-05-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50445  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 23:25:07  

Additional Information
 Earth MOID = 1.31548 au 
 Jupiter MOID = 2.45376 au 
 T_jup = 3.373 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.82   n/a MPCxxxxx  

85009 (2004 BL4)          Discovered 2004-Jan-16 by NEAT at Palomar
Reference: 20040504/Numbers.arcLast Updated: 2004-07-16

Alternate Designations
 2004 BL4 = 2002 RO211 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Sep-22 06:24 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin