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(2021 AK6)
Classification: Apollo [NEO]          SPK-ID: 54105559
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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2415697681336012 0.00047387  
a 1.047650878689828 0.00049399 au
q .7945700988397627 0.00012219 au
i 19.61428143553002 0.036955 deg
node 112.8400766632296 0.0030896 deg
peri 267.264128139098 0.052456 deg
M 38.72019337048643 0.083875 deg
tp 2459158.373215022635
(2020-Nov-04.87321502)
0.061458 TDB
period 391.6726976733254
1.07
0.27703
0.0007585
d
yr
n .9191347830434122 0.00065009 deg/d
Q 1.300731658539893 0.00061333 au
  Orbit Determination Parameters
   # obs. used (total)      42  
   data-arc span      4 days  
   first obs. used      2021-01-13  
   last obs. used      2021-01-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .43088  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jan-17 06:07:03  

Additional Information
 Earth MOID = .0117156 au 
 Jupiter MOID = 4.15349 au 
 T_jup = 5.787 
[ hide covariance matrix ]
Orbital Elements at Epoch 2459228.5 (2021-Jan-14.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2417115829151696 0.00047413  
q .7950148176257273 0.00012429 au
tp 2459158.469676488300
(2020-Nov-04.96967649)
0.060908 TDB
node 112.8353904274992 0.0030603 deg
peri 267.4256172061268 0.051567 deg
i 19.6238752846058 0.036905 deg
  Orbit Determination Parameters
   # obs. used (total)      42  
   data-arc span      4 days  
   first obs. used      2021-01-13  
   last obs. used      2021-01-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .43088  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jan-17 06:07:03  

Additional Information
 Jupiter MOID = 4.15349 au 
 T_jup = 5.787 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.248014870085597E-7 -5.878971800167847E-8 2.887065309890214E-5 -1.450996418225028E-6 2.442126089252955E-5 1.74978104169655E-5
q -5.878971800167847E-8 1.544715015102E-8 -7.538289871847641E-6 3.793981642789082E-7 -6.365412025922274E-6 -4.575557508126643E-6
tp 2.887065309890214E-5 -7.538289871847641E-6 .003709737881186979 -.0001863579905241739 .003139838402172412 .002247268329432007
node -1.450996418225028E-6 3.793981642789082E-7 -.0001863579905241739 9.365696475452695E-6 -.0001576472984049239 -.0001129420329286121
peri 2.442126089252955E-5 -6.365412025922274E-6 .003139838402172412 -.0001576472984049239 .002659190606449211 .001900998839156042
i 1.74978104169655E-5 -4.575557508126643E-6 .002247268329432007 -.0001129420329286121 .001900998839156042 .001361986867880882

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 25.29   .42337 E2021B25 autocmod 2.8

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