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JPL Small-Body Database Browser
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(2021 MC)
Classification: Apollo [NEO]          SPK-ID: 54161067
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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3775557469467909 0.0004001  
a 1.555266767275984 0.00093857 au
q .9680668612555788 3.8052e-05 au
i 2.025944113739849 0.0017149 deg
node 93.1793721115065 0.0012953 deg
peri 224.6838826898627 0.0013137 deg
M 342.668241048956 0.018225 deg
tp 2459430.607187178691
(2021-Aug-04.10718718)
0.0049915 TDB
period 708.444389228554
1.94
0.6413
0.001756
d
yr
n .508155623043348 0.00045999 deg/d
Q 2.142466673296389 0.0012929 au
  Orbit Determination Parameters
   # obs. used (total)      42  
   data-arc span      18 days  
   first obs. used      2021-06-16  
   last obs. used      2021-07-04  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      7  
   norm. resid. RMS      .46879  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-05 05:51:27  

Additional Information
 Earth MOID = .00634368 au 
 Jupiter MOID = 3.17424 au 
 T_jup = 4.358 
[ 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 25.94   .40024 E2021N23 autocmod 2.9c

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