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(2021 CM8)
Classification: Apollo [NEO]          SPK-ID: 54121893
[ 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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4464837467106844 0.00024813  
a 1.745900022678805 0.00076058 au
q .9663840391709035 1.2237e-05 au
i 4.023229867636758 0.0021202 deg
node 112.4163715427337 0.0016299 deg
peri 78.6490050187177 0.00058205 deg
M 317.4224010463781 0.028094 deg
tp 2459300.156618996713
(2021-Mar-26.65661900)		 0.00064102 TDB
period 842.6116953634557
2.31		 0.55061
0.001507		 d
yr
n .4272430610457122 0.00027918 deg/d
Q 2.525416006186707 0.0011002 au
   Orbit Determination Parameters
   # obs. used (total)      32  
   data-arc span      25 days  
   first obs. used      2021-02-01  
   last obs. used      2021-02-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .45672  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-27 05:51:17  

Additional Information
 Earth MOID = .0551028 au 
 Jupiter MOID = 2.43379 au 
 T_jup = 4.014 
[ 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 24.47   .35644 E2021-DA1 autocmod 2.8

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