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C/2019 T3 (ATLAS)
Classification: Comet          SPK-ID: 1003643
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.


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Orbital Elements at Epoch 2458861.5 (2020-Jan-13.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .9994139399687459 1.9121e-05  
a 10147.00539375557 331.03 au
q 5.946754298199449 5.7459e-05 au
i 121.8619467137455 3.6392e-05 deg
node 139.5113620986339 0.00014668 deg
peri 112.2453955527998 0.0012723 deg
M 359.9996004324304 1.9549e-05 deg
tp 2459275.874474513099
(2021-Mar-02.37447451)
0.010223 TDB
period 373340636.6321254
1022150.96
1.8269e+07
5.002e+04
d
yr
n 9.642668509046588E-7 4.7186e-08 deg/d
Q 20288.06403321295 661.86 au
  Orbit Determination Parameters
   # obs. used (total)      246  
   data-arc span      564 days (1.54 yr)  
   first obs. used      2019-01-17  
   last obs. used      2020-08-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   norm. resid. RMS      .43139  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-06 07:15:23  

Additional Information
 Earth MOID = 5.3435 au 
 Jupiter MOID = 2.77949 au 
 T_jup = -1.595 
[ 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 6.5   0.7 15 from 208 observations, assumed slope, autocmod 2.8
comet total magnitude slope K1 9.5   n/a 15 autocmod 2.8
comet nuclear magnitude M2 10.4   0.2 15 from 18 observations, autocmod 2.8
comet nuclear magnitude slope K2 5.   n/a 15 autocmod 2.8
comet nuclear phase coefficient PC 0.03   n/a 15 autocmod 2.8

Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2021.2   C/2019 T3       
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters ]
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