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C/2020 M5 (ATLAS)
Classification: Comet          SPK-ID: 1003701
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters ]

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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 2459094.5 (2020-Sep-02.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .9995487345342797 7.1393e-06  
a 6658.132707738051 105.33 au
q 3.004585357184802 1.7378e-05 au
i 93.22245677727098 5.1555e-05 deg
node 352.0980163249283 7.7264e-05 deg
peri 126.3358472451886 0.00036265 deg
M 359.9993615976154 1.515e-05 deg
tp 2459446.399862658259
(2021-Aug-19.89986266)		 0.00089854 TDB
period 198439030.951702
543296.46		 4.7088e+06
1.289e+04		 d
yr
n 1.814159232049567E-6 4.3048e-08 deg/d
Q 13313.26083011892 210.61 au
   Orbit Determination Parameters
   # obs. used (total)      460  
   data-arc span      590 days (1.62 yr)  
   first obs. used      2019-08-10  
   last obs. used      2021-03-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   norm. resid. RMS      .47367  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 23:34:09  

Additional Information
 Earth MOID = 2.32947 au 
 Jupiter MOID = 1.56329 au 
 T_jup = -0.120 
[ show covariance matrix ]

[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 5.7   0.5 12 2 parameter fit from 410 observations, autocmod 2.9c
comet total magnitude slope K1 15.   n/a 12 autocmod 2.9c
comet nuclear magnitude M2 12.7   0.4 12 from 33 observations, autocmod 2.9c
comet nuclear magnitude slope K2 5.   n/a 12 autocmod 2.9c
comet nuclear phase coefficient PC 0.03   n/a 12 autocmod 2.9c

Alternate Designations
 Perihelion 
Year (est.)		  New-Style 
Desig		 Roman
 Numeral 		 Year/
 Letter 
 2021.6   C/2020 M5       
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters ]
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