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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 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6232742981038329 0.0013428  
a 1.593605404249416 0.0043696 au
q .6003521144613861 0.00049375 au
i 2.34605461042209 0.0044046 deg
node 317.4543106977873 0.0051589 deg
peri 260.3437020589695 0.0051998 deg
M 331.1259859118167 0.14352 deg
tp 2458193.435134762906
(2018-Mar-15.93513476)
0.050554 TDB
period 734.8007952704127
2.01
3.0222
0.008274
d
yr
n .4899287021967866 0.002015 deg/d
Q 2.586858694037445 0.007093 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.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      8  
   norm. resid. RMS      .72288  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 20:18:13  

Additional Information
 Earth MOID = .00428145 au 
 Jupiter MOID = 2.39785 au 
 T_jup = 4.130 
[ 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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