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441303 (2008 AL4)
Classification: Main-belt Asteroid          SPK-ID: 2441303
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3540945482509179 4.6968e-08  
a 2.682546499481292 1.7414e-08 au
q 1.732671408585382 1.2613e-07 au
i 11.62845423791326 8.4555e-06 deg
node 297.9961644788482 3.1928e-05 deg
peri 110.2977233318987 3.4499e-05 deg
M 333.585555803608 1.1117e-05 deg
tp 2459118.249288381170
(2020-Sep-25.74928838)
4.9935e-05 TDB
period 1604.79408546522
4.39
1.5627e-05
4.278e-08
d
yr
n .2243278457096495 2.1844e-09 deg/d
Q 3.632421590377201 2.3581e-08 au
  Orbit Determination Parameters
   # obs. used (total)      144  
   data-arc span      6670 days (18.26 yr)  
   first obs. used      2002-07-21  
   last obs. used      2020-10-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55727  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 08:57:23  

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 ]
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