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(2021 AS5)
Classification: Apollo [NEO]          SPK-ID: 54105513
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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .317465003346168 7.6549e-05  
a 1.456417720097555 0.00016732 au
q .9940560637133662 2.7134e-06 au
i .9935699762854523 0.00024199 deg
node 168.3382530406712 0.0014541 deg
peri 294.9555750499635 0.0013416 deg
M 236.845856555773 0.021068 deg
tp 2459220.121010556868
(2021-Jan-05.62101056)
0.00027684 TDB
period 641.9886622513689
1.76
0.11063
0.0003029
d
yr
n .5607575665550353 9.6632e-05 deg/d
Q 1.918779376481743 0.00022043 au
  Orbit Determination Parameters
   # obs. used (total)      70  
   data-arc span      36 days  
   first obs. used      2021-01-12  
   last obs. used      2021-02-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      6  
   norm. resid. RMS      .32766  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-18 05:25:45  

Additional Information
 Earth MOID = .0188131 au 
 Jupiter MOID = 3.23222 au 
 T_jup = 4.576 
[ 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 26.3   .3097 E2021D54 autocmod 2.8

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