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311P/PANSTARRS (2013 P5)
Classification: Encke-type Comet          SPK-ID: 1003273
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456457.5 (2013-Jun-14.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1152839802288967 8.6903e-07  
a 2.188712998676021 5.3293e-07 AU
q 1.936389452609925 1.9215e-06 AU
i 4.968466064328145 2.3329e-05 deg
node 279.2894732263348 0.00054681 deg
peri 144.209729874557 0.0011761 deg
M 266.9331228805775 0.00087851 deg
tp 2456763.255510709985
(2014-Apr-15.75551071)
0.0029884 JED
period 1182.719215068873
3.24
0.00043197
1.183e-06
d
yr
n .304383318891996 1.1117e-07 deg/d
Q 2.441036544742116 5.9437e-07 AU
  Orbit Determination Parameters
   # obs. used (total)      155  
   data-arc span      1467 days (4.02 yr)  
   first obs. used      2010-10-17  
   last obs. used      2014-10-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      1  
   fit RMS      .26413  
   data source      ORB  
   producer      Giorgini  
   solution date      2014-Oct-26 23:18:51  

Additional Information
 Earth MOID = .951237 AU 
 T_jup = 3.661 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 14.9 mag 0.6 17 from 85 observations, assumed slope, autocmod 2.6
comet total magnitude slope K1 16.   n/a 17 autocmod 2.6
comet nuclear magnitude M2 18.9 mag 0.7 17 from 14 observations, autocmod 2.6
comet nuclear magnitude slope K2 5.   n/a 17 autocmod 2.6
comet nuclear phase coefficient PC 0.03   n/a 17 autocmod 2.6

Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2014.3   311P/2013 P5       
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]
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