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P/2013 G4 (PANSTARRS)
Classification: Jupiter-family Comet          SPK-ID: 1003245
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456407.5 (2013-Apr-25.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4104140410052934 0.00021003  
a 4.432250028990902 0.0013786 AU
q 2.613192383846917 0.00021456 AU
i 5.925600227077861 0.0015091 deg
node 339.7727704323941 0.014339 deg
peri 214.3919227000516 0.11033 deg
M 7.848880315638612 0.033366 deg
tp 2456333.191240699315
(2013-Feb-09.69124070)
0.34951 JED
period 3408.276374777418
9.33
1.5901
0.004353
d
yr
n .1056252370447835 4.9279e-05 deg/d
Q 6.251307674134887 0.0019443 AU
  Orbit Determination Parameters
   # obs. used (total)      41  
   data-arc span      58 days  
   first obs. used      2013-04-12  
   last obs. used      2013-06-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      5  
   fit RMS      .38159  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-13 19:45:06  

Additional Information
 Earth MOID = 1.61582 AU 
 T_jup = 2.848 
[ 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 15.1 mag 0.6 9 from 26 observations, assumed slope, autocmod 2.5c
comet total magnitude slope K1 10.   n/a 9 autocmod 2.5c
comet nuclear magnitude M2 17.5 mag 0.6 9 from 7 observations, autocmod 2.5c
comet nuclear magnitude slope K2 5.   n/a 9 autocmod 2.5c
comet nuclear phase coefficient PC 0.03   n/a 9 autocmod 2.5c

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2013.1   P/2013 G4       
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ]
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