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

[ 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 2459083.5 (2020-Aug-22.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .9995256668365902 9.6404e-06  
a 6334.32970641608 128.74 au
q 3.004582647725228 2.0583e-05 au
i 93.22242034082221 8.1468e-05 deg
node 352.0979638915067 0.00011867 deg
peri 126.3362620414763 0.00045308 deg
M 359.9992905132501 2.1632e-05 deg
tp 2459446.403546769614
(2021-Aug-19.90354677)
0.0013531 TDB
period 184140545.0506349
504149.34
5.6138e+06
1.537e+04
d
yr
n 1.955028426254562E-6 5.9602e-08 deg/d
Q 12665.65483018443 257.42 au
  Orbit Determination Parameters
   # obs. used (total)      435  
   data-arc span      526 days (1.44 yr)  
   first obs. used      2019-08-10  
   last obs. used      2021-01-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   norm. resid. RMS      .47425  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jan-30 21:12:48  

Additional Information
 Earth MOID = 2.3271 au 
 Jupiter MOID = 1.5633 au 
 T_jup = -0.120 
[ hide covariance matrix ]
Orbit Covariance (6×6)
  e q tp node peri i
e 9.293813465617541E-11 5.799250408699176E-12 -1.206572654011711E-8 3.237855414670993E-10 -1.26297874976257E-9 1.546713798549209E-10
q 5.799250408699176E-12 4.236738029698681E-10 -3.607589591461665E-9 1.542283022886368E-9 -8.896820014829812E-9 1.1013574652806E-9
tp -1.206572654011711E-8 -3.607589591461665E-9 1.830939129070257E-6 -3.642650142929511E-8 2.556883234902093E-7 -1.757264215586161E-8
node 3.237855414670993E-10 1.542283022886368E-9 -3.642650142929511E-8 1.408236039928131E-8 -3.364751796368311E-8 9.442591313537287E-9
peri -1.26297874976257E-9 -8.896820014829812E-9 2.556883234902093E-7 -3.364751796368311E-8 2.052807574022279E-7 -2.329568255015226E-8
i 1.546713798549209E-10 1.1013574652806E-9 -1.757264215586161E-8 9.442591313537287E-9 -2.329568255015226E-8 6.637115873411206E-9

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 5.0   0.5 9 2 parameter fit from 387 observations, autocmod 2.8
comet total magnitude slope K1 16.   n/a 9 autocmod 2.8
comet nuclear magnitude M2 12.7   0.4 9 from 33 observations, autocmod 2.8
comet nuclear magnitude slope K2 5.   n/a 9 autocmod 2.8
comet nuclear phase coefficient PC 0.03   n/a 9 autocmod 2.8

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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