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(2021 AB)
Classification: Apollo [NEO]          SPK-ID: 54104072
[ 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 3 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6497433431122621 0.00064093  
a 2.502216424305486 0.0043589 au
q .8764179595868289 7.7038e-05 au
i 1.339529344968776 0.0010526 deg
node 293.9715876459504 0.0016745 deg
peri 212.7680380298002 0.0020411 deg
M 298.1398515934675 0.16318 deg
tp 2459248.924365532405
(2021-Feb-03.42436553)		 0.0061931 TDB
period 1445.725137998888
3.96		 3.7777
0.01034		 d
yr
n .2490099885088093 0.00065067 deg/d
Q 4.128014889024143 0.007191 au
   Orbit Determination Parameters
   # obs. used (total)      55  
   data-arc span      1 day  
   first obs. used      2021-01-02  
   last obs. used      2021-01-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .50817  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jan-05 05:26:34  

Additional Information
 Earth MOID = .00433727 au 
 Jupiter MOID = .906097 au 
 T_jup = 3.133 
[ 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   .2937 3 autocmod 2.8

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