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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 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4104091346392232 0.00020998  
a 4.43224059519337 0.0013783 AU
q 2.613208568007224 0.00021451 AU
i 5.925508128949074 0.0015091 deg
node 339.7717252016953 0.014339 deg
peri 214.3969509554207 0.11033 deg
M 7.847420573433904 0.033369 deg
tp 2456333.205297911681
(2013-Feb-09.70529791)
0.34952 JED
period 3408.265493293319
9.33
1.5898
0.004353
d
yr
n .1056255742718392 4.9271e-05 deg/d
Q 6.251272622379517 0.001944 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.      DE405  
   SB-pert. ephem.      SB405-CPV-2  
   condition code      5  
   fit RMS      .37  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Jun-26 15:43:24  

Additional Information
 Earth MOID = 1.61584 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 8 from 26 observations, assumed slope, autocmod 2.5c
comet total magnitude slope K1 10.   n/a 8 autocmod 2.5c
comet nuclear magnitude M2 17.5 mag 0.6 8 from 7 observations, autocmod 2.5c
comet nuclear magnitude slope K2 5.   n/a 8 autocmod 2.5c
comet nuclear phase coefficient PC 0.03   n/a 8 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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