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C/2018 V2 (ATLAS)
Classification: Halley-type Comet*          SPK-ID: 1003594
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458560.5 (2019-Mar-18.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .9028851647958491 5.1878e-06  
a 25.48361605742344 0.0013776 au
q 2.47483717382253 2.3705e-06 au
i 159.1099188337545 2.2078e-05 deg
node 356.7908514457026 3.8758e-05 deg
peri 318.6624914116978 0.00010178 deg
M .8505900019138439 6.9295e-05 deg
tp 2458449.478323905817
(2018-Nov-26.97832391)
0.00031023 TDB
period 46988.32963469774
128.65
3.8103
0.01043
d
yr
n .00766147685603542 6.2127e-07 deg/d
Q 48.49239494102434 0.0026215 au
  Orbit Determination Parameters
   # obs. used (total)      173  
   data-arc span      297 days  
   first obs. used      2018-10-18  
   last obs. used      2019-08-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      3  
   norm. resid. RMS      .5115  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 23:33:46  

Additional Information
 Earth MOID = 1.52275 au 
 Jupiter MOID = 1.32322 au 
 T_jup = -1.573 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 13.6   0.4 8 2 parameter fit from 160 observations, autocmod 2.9c
comet total magnitude slope K1 12.25   n/a 8 autocmod 2.9c

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2018.9   C/2018 V2       
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ]
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