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(2018 AL12)
Classification: Apollo [NEO]          SPK-ID: 3797697
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2458134.5 (2018-Jan-16.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6237219611181365 0.001363  
a 1.595063989093811 0.0044467 au
q .6001875497073013 0.00050083 au
i 2.347522243675736 0.0044696 deg
node 317.4560292175983 0.0052374 deg
peri 260.3419722561349 0.0052842 deg
M 331.1738253646694 0.14563 deg
tp 2458193.418286093706
(2018-Mar-15.91828609)		 0.05128 TDB
period 735.8098416477907
2.01		 3.0769
0.008424		 d
yr
n .4892568427649827 0.0020459 deg/d
Q 2.58994042848032 0.0072201 au
   Orbit Determination Parameters
   # obs. used (total)      34  
   data-arc span      11 days  
   first obs. used      2018-01-14  
   last obs. used      2018-01-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      8  
   norm. resid. RMS      .66511  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Feb-26 06:22:07  

Additional Information
 Earth MOID = .00428739 au 
 Jupiter MOID = 2.39481 au 
 T_jup = 4.127 
[ show covariance matrix ]

[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 24.8   n/a MPO438049  

[ show close-approach data ]
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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