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JPL Small-Body Database Browser
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C/2018 N2 (ASASSN)
Classification: Hyperbolic Comet          SPK-ID: 1003580
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458710.5 (2019-Aug-15.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e 1.000167213994544 5.1579e-06  
a -18686.50037264561 576.38 au
q 3.124644371355981 4.9937e-06 au
i 77.53439621556592 5.3909e-05 deg
node 25.25992645653281 2.3893e-05 deg
peri 24.39586869620269 0.00027568 deg
M -3.393944745195904E-5 1.57e-06 deg
tp 2458798.461505613373
(2019-Nov-10.96150561)
0.0010505 TDB
period n/a
n/a
n/a
n/a
d
yr
n 3.85844321505101E-7 1.7852e-08 deg/d
Q n/a n/a au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] 1.400632230429523E-8 3.742E-9
A2 [EST] -1.277705072421135E-9 4.945E-9
A3 [EST] 1.292328132853578E-8 3.258E-9
ALN [SET] .0408373333128795 n/a
NK [SET] 2.6 n/a
NM [SET] 2. n/a
NN [SET] 3. n/a
R0 [SET] 5. n/a
  Orbit Determination Parameters
   # obs. used (total)      2863  
   data-arc span      550 days (1.51 yr)  
   first obs. used      2018-07-07  
   last obs. used      2020-01-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   norm. resid. RMS      .33723  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-09 08:45:27  

Additional Information
 Earth MOID = 2.19603 au 
 Jupiter MOID = 1.6367 au 
 T_jup = 0.474 
 Nongrav. accels. using CO driven g(r) 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 9.6   0.8 14 2 parameter fit from 1761 observations, autocmod 2.8
comet total magnitude slope K1 4.5   n/a 14 autocmod 2.8
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]
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