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(2021 AP5)
Classification: Apollo [NEO]          SPK-ID: 54105512
[ 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 2459227.5 (2021-Jan-13.0) TDB
Reference: JPL 2 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3558533847482745 0.0012566  
a 1.527068667590352 0.00299 au
q .9836561134852877 8.6114e-06 au
i 2.886523066034911 0.00835 deg
node 113.994336062554 0.0077615 deg
peri 30.17133686195339 0.0073736 deg
M 346.9069890492387 0.040599 deg
tp 2459252.568208995870
(2021-Feb-07.06820900)		 0.0047238 TDB
period 689.2650798545671
1.89		 2.0244
0.005543		 d
yr
n .5222954281623536 0.001534 deg/d
Q 2.070481221695417 0.004054 au
   Orbit Determination Parameters
   # obs. used (total)      23  
   data-arc span      5 days  
   first obs. used      2021-01-11  
   last obs. used      2021-01-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      8  
   norm. resid. RMS      .31899  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jan-16 06:03:10  

Additional Information
 Earth MOID = .0150577 au 
 Jupiter MOID = 2.94787 au 
 T_jup = 4.419 
[ 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 25.161   .32032 2 autocmod 2.8

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