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(2015 AK1)
Classification: Apollo [NEO]          SPK-ID: 3703319
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ hide orbit diagram ]

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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5134422306990166 0.00026851  
a 1.716817799721489 0.00083446 au
q .8353310389287101 5.4972e-05 au
i 2.818297802540872 0.00085704 deg
node 315.3386724642151 0.00052006 deg
peri 219.028032870358 0.0038012 deg
M 120.7571882813408 0.61168 deg
tp 2458724.889836042960
(2019-Aug-29.38983604)		 1.1951 TDB
period 821.6459859380952
2.25		 0.59904
0.00164		 d
yr
n .4381449020151645 0.00031944 deg/d
Q 2.598304560514268 0.0012629 au
   Orbit Determination Parameters
   # obs. used (total)      79  
   data-arc span      18 days  
   first obs. used      2014-12-29  
   last obs. used      2015-01-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .42292  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 08:36:30  

Additional Information
 Earth MOID = .0142249 au 
 Jupiter MOID = 2.37487 au 
 T_jup = 4.015 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457035.5 (2015-Jan-13.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5140398575105954 0.00027071  
q .8351556913013701 5.9215e-05 au
tp 2457080.920981198574
(2015-Feb-27.42098120)		 0.0046842 TDB
node 315.6948366337472 0.0020023 deg
peri 218.6617753033372 0.00056314 deg
i 2.772456510976119 0.0010555 deg
   Orbit Determination Parameters
   # obs. used (total)      79  
   data-arc span      18 days  
   first obs. used      2014-12-29  
   last obs. used      2015-01-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .42292  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 08:36:30  

Additional Information
 Jupiter MOID = 2.37487 au 
 T_jup = 4.015 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.328399802985405E-8 -1.602978063278726E-8 -1.268024466995809E-6 5.333065437453395E-7 -1.154447789536604E-7 2.856150605872967E-7
q -1.602978063278726E-8 3.506372307911554E-9 2.773531343708749E-7 -1.166156839626623E-7 2.519724249224874E-8 -6.247735483596867E-8
tp -1.268024466995809E-6 2.773531343708749E-7 2.194143726305334E-5 -9.226077705019918E-6 1.997604645152252E-6 -4.942055120525104E-6
node 5.333065437453395E-7 -1.166156839626623E-7 -9.226077705019918E-6 4.00937955382688E-6 -9.702499900064776E-7 2.067614413885853E-6
peri -1.154447789536604E-7 2.519724249224874E-8 1.997604645152252E-6 -9.702499900064776E-7 3.171291744421455E-7 -4.388363017849859E-7
i 2.856150605872967E-7 -6.247735483596867E-8 -4.942055120525104E-6 2.067614413885853E-6 -4.388363017849859E-7 1.114100056905873E-6

[ 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 24.3   n/a MPO382718  

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