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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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3540945447240999 4.8015e-08  
a 2.682546500725095 1.9652e-08 au
q 1.732671418849615 1.3025e-07 au
i 11.628453395436 9.2064e-06 deg
node 297.9961623181838 3.3156e-05 deg
peri 110.2977256248358 3.5665e-05 deg
M 333.5855550892451 1.3054e-05 deg
tp 2459118.249291647523
(2020-Sep-25.74929165)
5.883e-05 TDB
period 1604.794086581351
4.39
1.7635e-05
4.828e-08
d
yr
n .22432784555363 2.4651e-09 deg/d
Q 3.632421582600574 2.6611e-08 au
  Orbit Determination Parameters
   # obs. used (total)      115  
   data-arc span      6586 days (18.03 yr)  
   first obs. used      2002-07-21  
   last obs. used      2020-08-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59831  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-26 00:50:17  

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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