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JPL Small-Body Database Browser
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390308 (2013 AL99)
Classification: Jupiter Trojan          SPK-ID: 2390308
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1342971082788466 1.1106e-07  
a 5.229965861497454 6.0646e-07 au
q 4.527596569901259 9.722e-07 au
i 13.09465435593082 8.7522e-06 deg
node 106.6914780344027 4.2949e-05 deg
peri 346.8510831301431 9.1702e-05 deg
M 217.8481712175044 0.00010013 deg
tp 2460325.530024274499
(2024-Jan-16.03002427)
0.0014774 TDB
period 4368.644526473303
11.96
0.00075988
2.08e-06
d
yr
n .08240542296780071 1.4333e-08 deg/d
Q 5.932335153093649 6.8791e-07 au
  Orbit Determination Parameters
   # obs. used (total)      129  
   data-arc span      6821 days (18.67 yr)  
   first obs. used      2000-12-20  
   last obs. used      2019-08-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .40081  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 07:06:53  

Additional Information
 Earth MOID = 3.54596 au 
 Jupiter MOID = .663181 au 
 T_jup = 2.930 
[ 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 13.5   n/a MPO494980  

390308 (2013 AL99)          Discovered 2011-Nov-18 by Spacewatch at Kitt Peak
Reference: Last Updated: 2014-03-21
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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