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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 2458978.5 (2020-May-09.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .9991618339352512 1.1499e-05  
a 7094.863798169931 97.335 au
q 5.946674069641145 2.6411e-05 au
i 121.862569460761 1.596e-05 deg
node 139.5156025198348 7.8463e-05 deg
peri 112.2521902717974 0.00065102 deg
M 359.999509440745 1.0093e-05 deg
tp 2459275.942822536523
(2021-Mar-02.44282254)
0.0054604 TDB
period 218280289.3434791
597618.86
4.4919e+06
1.23e+04
d
yr
n 1.649255647785564E-6 3.394e-08 deg/d
Q 14183.78092227022 194.59 au
  Orbit Determination Parameters
   # obs. used (total)      498  
   data-arc span      638 days (1.75 yr)  
   first obs. used      2019-01-17  
   last obs. used      2020-10-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   norm. resid. RMS      .44593  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Oct-18 17:46:26  

Additional Information
 Earth MOID = 5.3434 au 
 Jupiter MOID = 2.77908 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 6.4   0.7 19 from 441 observations, assumed slope, autocmod 2.8
comet total magnitude slope K1 9.25   n/a 19 autocmod 2.8
comet nuclear magnitude M2 10.2   0.2 19 from 36 observations, autocmod 2.8
comet nuclear magnitude slope K2 5.   n/a 19 autocmod 2.8
comet nuclear phase coefficient PC 0.03   n/a 19 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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