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
JPL Small-Body Database Browser
Search: [ help ]  
441303 (2008 AL4)
Classification: Main-belt Asteroid          SPK-ID: 2441303
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


[ revert to old Java-based viewer ]

Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3540945273999851 4.8518e-08  
a 2.682546490903305 3.2219e-08 au
q 1.732671458978411 1.3473e-07 au
i 11.6284504291345 1.0362e-05 deg
node 297.9961638000068 3.3569e-05 deg
peri 110.2977112046542 3.827e-05 deg
M 333.5855677996835 2.3714e-05 deg
tp 2459118.249234340737
(2020-Sep-25.74923434)
0.00010747 TDB
period 1604.794077767739
4.39
2.8912e-05
7.916e-08
d
yr
n .2243278467856501 4.0414e-09 deg/d
Q 3.6324215228282 4.3627e-08 au
  Orbit Determination Parameters
   # obs. used (total)      105  
   data-arc span      5354 days (14.66 yr)  
   first obs. used      2002-07-21  
   last obs. used      2017-03-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61575  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-09 12:39:43  

Additional Information
 Earth MOID = .783213 au 
 Jupiter MOID = 1.95479 au 
 T_jup = 3.255 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.1   n/a MPO402740  

441303 (2008 AL4)          Discovered 2008-Jan-09 by LUSS at Lulin
Reference: Last Updated: 2015-09-02

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jul-08 04:59 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin