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JPL Small-Body Database Browser
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C/2017 C1 (NEOWISE)
Classification: Halley-type Comet*          SPK-ID: 1003498
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457814.5 (2017-Mar-02.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .9277434339004029 0.00013664  
a 20.78328330255324 0.039999 au
q 1.50172868371759 5.0546e-05 au
i 65.75128755515154 0.0018967 deg
node 357.4577739538018 0.001171 deg
peri 110.2023960908738 0.0036325 deg
M .4374869623595932 0.0013168 deg
tp 2457772.443582279895
(2017-Jan-18.94358228)
0.0052418 TDB
period 34607.45503723879
94.75
99.908
0.2735
d
yr
n .01040238294357756 3.003e-05 deg/d
Q 40.06483792138889 0.077108 au
  Orbit Determination Parameters
   # obs. used (total)      56  
   data-arc span      74 days  
   first obs. used      2017-02-06  
   last obs. used      2017-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      5  
   norm. resid. RMS      .56424  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-May-06 22:18:40  

Additional Information
 Earth MOID = .913553 au 
 Jupiter MOID = .335288 au 
 T_jup = 0.863 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 16.2   0.8 5 from 40 observations, assumed slope, autocmod 2.6i
comet total magnitude slope K1 17.   n/a 5 autocmod 2.6i

Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2017.0   C/2017 C1       
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]
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