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JPL Small-Body Database Browser
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312254 (2008 AL2)
Classification: Main-belt Asteroid          SPK-ID: 2312254
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1209138012824748 1.3422e-07  
a 2.578145562749944 4.0822e-08 au
q 2.266412182498303 3.7166e-07 au
i 15.56122725400181 8.9923e-06 deg
node 118.347311059499 2.5508e-05 deg
peri 199.9545081643543 4.1044e-05 deg
M 56.24437566806472 2.5588e-05 deg
tp 2458364.269386653443
(2018-Sep-02.76938665)
0.00010922 TDB
period 1512.027110171079
4.14
3.5912e-05
9.832e-08
d
yr
n .2380909691224171 5.6549e-09 deg/d
Q 2.889878943001585 4.5758e-08 au
  Orbit Determination Parameters
   # obs. used (total)      181  
   data-arc span      5764 days (15.78 yr)  
   first obs. used      2002-11-05  
   last obs. used      2018-08-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .66013  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 10:06:27  

Additional Information
 Earth MOID = 1.2564 au 
 Jupiter MOID = 2.38464 au 
 T_jup = 3.365 
[ 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 16.2   n/a MPO455301  

312254 (2008 AL2)          Discovered 2008-Jan-03 by Hug, G. at Eskridge
Reference: 20120109/Numbers.arcLast Updated: 2012-01-11

[ show close-approach data ]
Alternate Designations
 2008 AL2 = 2005 JJ181 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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