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(2021 AS5)
Classification: Apollo [NEO]          SPK-ID: 54105513
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .317915277299877 7.6359e-05  
a 1.456930085641032 0.00016693 au
q .99374975345793 2.6133e-06 au
i .9975607446496425 0.00023901 deg
node 168.3112858990054 0.0013908 deg
peri 295.0009670457648 0.0013046 deg
M 349.0075419118704 0.0017207 deg
tp 2459220.113216030134
(2021-Jan-05.61321603)
0.00030186 TDB
period 642.3274680003584
1.76
0.1104
0.0003023
d
yr
n .5604617861364745 9.6325e-05 deg/d
Q 1.920110417824135 0.00022 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 = .0185967 au 
 Jupiter MOID = 3.23078 au 
 T_jup = 4.575 
[ hide covariance matrix ]
Orbital Elements at Epoch 2459244.5 (2021-Jan-30.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3195556871218451 7.5644e-05  
q .9940136199390688 2.4867e-06 au
tp 2459220.330152263727
(2021-Jan-05.83015226)
0.00015133 TDB
node 166.1877366405177 0.00021655 deg
peri 297.3764779858734 0.00045058 deg
i 1.025595065884043 0.00022547 deg
  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
 Jupiter MOID = 3.23078 au 
 T_jup = 4.575 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.722005984506367E-9 1.880790801009062E-10 1.129301120425895E-8 1.248025953347577E-8 -3.196875697095444E-8 1.705391656309072E-8
q 1.880790801009062E-10 6.183898918765442E-12 3.722039118594034E-10 4.070395612206842E-10 -1.046499170473573E-9 5.606608634374281E-10
tp 1.129301120425895E-8 3.722039118594034E-10 2.290202302193742E-8 2.281327553009732E-8 -6.05967937851434E-8 3.371710847091043E-8
node 1.248025953347577E-8 4.070395612206842E-10 2.281327553009732E-8 4.689536714676761E-8 -9.139738054838529E-8 3.678747977900577E-8
peri -3.196875697095444E-8 -1.046499170473573E-9 -6.05967937851434E-8 -9.139738054838529E-8 2.030268397521385E-7 -9.480607284849522E-8
i 1.705391656309072E-8 5.606608634374281E-10 3.371710847091043E-8 3.678747977900577E-8 -9.480607284849522E-8 5.083825524209376E-8

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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