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

[ hide orbit diagram ]

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.


Orbital Elements at Epoch 2457397.5 (2016-Jan-10.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .9876262546848744 1.8634e-06  
a 169.7661182744818 0.025657 au
q 2.100642710665925 1.2563e-06 au
i 64.67038058837301 1.1932e-05 deg
node 8.122248442298307 1.0383e-05 deg
peri 87.80660986760738 4.1623e-05 deg
M .01390323890189547 3.1712e-06 deg
tp 2457366.297568435232
(2015-Dec-09.79756844)
8.4325e-05 TDB
period 807932.2697810414
2212.00
183.16
0.5015
d
yr
n .0004455819051485145 1.0101e-07 deg/d
Q 337.4315938382977 0.050997 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] 7.685285841777871E-8 2.045E-9
A2 [EST] 2.036945314567376E-8 1.317E-9
A3 [EST] -1.184652223832259E-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.      DE441  
   SB-pert. ephem.      SB441-N16  
   norm. resid. RMS      .5984  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 23:33:00  

Additional Information
 Earth MOID = 1.76753 au 
 Jupiter MOID = .582632 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 6.0   2. 38 from 237 observations, assumed slope, autocmod 2.9c
comet total magnitude slope K1 13.25   n/a 38 autocmod 2.9c
comet nuclear magnitude M2 10.4   0.9 38 from 2443 observations, autocmod 2.9c
comet nuclear magnitude slope K2 5.   n/a 38 autocmod 2.9c
comet nuclear phase coefficient PC 0.03   n/a 38 autocmod 2.9c

[ 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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