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C/2020 Y3 (ATLAS)
Classification: Comet          SPK-ID: 1003755
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459268.5 (2021-Feb-23.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .9867691448508251 1.9538e-05  
a 151.1046199586029 0.22386 au
q 1.999243339043394 1.055e-05 au
i 83.09702762271255 0.00019184 deg
node 191.4267638276976 0.00012568 deg
peri 342.043650060207 0.00060146 deg
M .04325330951037736 9.6688e-05 deg
tp 2459186.986060371964
(2020-Dec-03.48606037)
0.0011515 TDB
period 678445.6171857205
1857.48
1507.7
4.128
d
yr
n .0005306246969260796 1.1792e-06 deg/d
Q 300.2099965781623 0.44476 au
  Orbit Determination Parameters
   # obs. used (total)      376  
   data-arc span      163 days  
   first obs. used      2020-12-28  
   last obs. used      2021-06-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   norm. resid. RMS      .5919  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-01 22:12:54  

Additional Information
 Earth MOID = 1.03279 au 
 Jupiter MOID = 3.38132 au 
 T_jup = 0.244 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 14.5   0.5 8 2 parameter fit from 334 observations, autocmod 2.9c
comet total magnitude slope K1 7.   n/a 8 autocmod 2.9c

Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2020.9   C/2020 Y3       
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]
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