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JPL Small-Body Database Browser
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C/2014 S2 (PANSTARRS)
Classification: Comet          SPK-ID: 1003343
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457397.5 (2016-Jan-10.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .9876258640050614 1.8634e-06  
a 169.7607558409029 0.025655 au
q 2.100642679378906 1.2563e-06 au
i 64.6703699275772 1.1932e-05 deg
node 8.122244194633751 1.0383e-05 deg
peri 87.80660706220249 4.1623e-05 deg
M .01390390599652786 3.1713e-06 deg
tp 2457366.297549758568
(2015-Dec-09.79754976)
8.4325e-05 TDB
period 807893.9896256953
2211.89
183.14
0.5014
d
yr
n .0004456030179984274 1.0101e-07 deg/d
Q 337.4208690024268 0.050993 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] 7.687398854948842E-8 2.045E-9
A2 [EST] 1.975634159693008E-8 1.317E-9
A3 [EST] -1.196079239403456E-8 9.269E-10
  Orbit Determination Parameters
   # obs. used (total)      2941  
   data-arc span      942 days (2.58 yr)  
   first obs. used      2014-09-02  
   last obs. used      2017-04-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   norm. resid. RMS      .59789  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-May-06 22:16:56  

Additional Information
 Earth MOID = 1.76753 au 
 Jupiter MOID = .582633 au 
 T_jup = 0.797 
[ 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 5.1   2. 37 from 241 observations, assumed slope, autocmod 2.6i
comet total magnitude slope K1 15.   n/a 37 autocmod 2.6i
comet nuclear magnitude M2 10.4   0.9 37 from 2443 observations, autocmod 2.6i
comet nuclear magnitude slope K2 5.   n/a 37 autocmod 2.6i
comet nuclear phase coefficient PC 0.03   n/a 37 autocmod 2.6i

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2015.9   C/2014 S2       
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ]
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