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(2015 AK45)
Classification: Apollo [NEO]          SPK-ID: 3703788
[ 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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .602802122787062 1.9028e-05  
a 2.475386364056513 0.00012501 au
q .9832182090850998 2.5529e-06 au
i 4.120039980015957 9.5613e-05 deg
node 127.3532406975148 1.929e-05 deg
peri 12.93437741332237 0.00015314 deg
M 130.9777698070603 0.036165 deg
tp 2458482.943212171983
(2018-Dec-30.44321217)		 0.1037 TDB
period 1422.53486139327
3.89		 0.10776
0.000295		 d
yr
n .2530693691734247 1.917e-05 deg/d
Q 3.967554519027926 0.00020036 au
   Orbit Determination Parameters
   # obs. used (total)      45  
   # delay obs. used      0  
   # Doppler obs. used      1  
   data-arc span      13 days  
   first obs. used      2015-01-15  
   last obs. used      2015-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      5  
   norm. resid. RMS      .28318  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 08:36:23  

Additional Information
 Earth MOID = .00523823 au 
 Jupiter MOID = 1.07541 au 
 T_jup = 3.200 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457039.5 (2015-Jan-17.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .603992512736039 1.9251e-05  
q .9851813521628289 7.3249e-08 au
tp 2457059.926596879567
(2015-Feb-06.42659688)		 3.0198e-05 TDB
node 127.4577177333249 1.9449e-05 deg
peri 12.62537854590631 6.8279e-05 deg
i 4.103973292947017 9.4857e-05 deg
   Orbit Determination Parameters
   # obs. used (total)      45  
   # delay obs. used      0  
   # Doppler obs. used      1  
   data-arc span      13 days  
   first obs. used      2015-01-15  
   last obs. used      2015-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      5  
   norm. resid. RMS      .28318  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 08:36:23  

Additional Information
 Jupiter MOID = 1.07541 au 
 T_jup = 3.200 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.706019134362217E-10 1.579263280628065E-13 -2.564883904954632E-10 2.412728811923549E-10 1.104307982681612E-9 1.820660277767863E-9
q 1.579263280628065E-13 5.365400798569718E-15 -1.987284069898067E-12 1.485759275249687E-13 -1.955616941007445E-12 6.43596180057627E-13
tp -2.564883904954632E-10 -1.987284069898067E-12 9.119315813555036E-10 -1.598201077978013E-10 1.511792739676673E-10 -1.204446800812249E-9
node 2.412728811923549E-10 1.485759275249687E-13 -1.598201077978013E-10 3.782732304042726E-10 5.031175947060753E-10 1.120981996363467E-9
peri 1.104307982681612E-9 -1.955616941007445E-12 1.511792739676673E-10 5.031175947060753E-10 4.662059063368792E-9 5.558420181561156E-9
i 1.820660277767863E-9 6.43596180057627E-13 -1.204446800812249E-9 1.120981996363467E-9 5.558420181561156E-9 8.99781089179708E-9

[ 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 26.4   n/a MPO324237  
rotation period rot_per 0.0258 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Thirouin, A.; Moskovitz, N.; Binzel, R.P.; Christensen, E.; et al. (2016) Astron. J. 152, A163.]

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