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117431 (2005 AL28)
Classification: Main-belt Asteroid          SPK-ID: 2117431
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 .04403738623140959 5.7775e-08  
a 2.615008888095339 2.2018e-08 au
q 2.499850731691715 1.541e-07 au
i 15.60691035933405 5.9555e-06 deg
node 136.4005927917578 2.3387e-05 deg
peri 293.6112952488397 7.1151e-05 deg
M 283.278552647544 6.8365e-05 deg
tp 2459329.671682502966
(2021-Apr-25.17168250)
0.00029435 TDB
period 1544.572082388827
4.23
1.9508e-05
5.341e-08
d
yr
n .2330742631598169 2.9437e-09 deg/d
Q 2.730167044498962 2.2988e-08 au
  Orbit Determination Parameters
   # obs. used (total)      285  
   data-arc span      6815 days (18.66 yr)  
   first obs. used      1999-10-13  
   last obs. used      2018-06-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60416  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 22:42:31  

Additional Information
 Earth MOID = 1.55146 au 
 Jupiter MOID = 2.39095 au 
 T_jup = 3.354 
[ 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 15.7   n/a MPO436564  

117431 (2005 AL28)          Discovered 2005-Jan-13 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 2005 AL28 = 1999 TV333 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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