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C/2020 M3 (ATLAS)
Classification: Halley-type Comet* [NEO]          SPK-ID: 1003699
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 2459157.5 (2020-Nov-04.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .9527125091569346 2.7919e-06  
a 26.81988973790348 0.0015958 au
q 1.268245290393134 5.9751e-07 au
i 23.47341067965113 3.3065e-05 deg
node 71.25030554923666 1.0738e-05 deg
peri 328.4453876783957 2.2753e-05 deg
M .06653962382392954 5.9931e-06 deg
tp 2459148.123046778488
(2020-Oct-25.62304678)
2.4233e-05 TDB
period 50732.2248871855
138.90
4.528
0.0124
d
yr
n .007096081451198738 6.3334e-07 deg/d
Q 52.37153418541383 0.0031162 au
  Orbit Determination Parameters
   # obs. used (total)      1723  
   data-arc span      191 days  
   first obs. used      2020-06-27  
   last obs. used      2021-01-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      3  
   norm. resid. RMS      .47448  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jan-14 17:13:07  

Additional Information
 Earth MOID = .327383 au 
 Jupiter MOID = .886268 au 
 T_jup = 1.460 
[ 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
comet total magnitude M1 14.2   0.9 14 2 parameter fit from 1410 observations, autocmod 2.8
comet total magnitude slope K1 9.25   n/a 14 autocmod 2.8

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2020.8   C/2020 M3       
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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