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311P/PANSTARRS
Classification: Encke-type Comet          SPK-ID: 1003273
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456894.5 (2014-Aug-25.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1155581774216783 1.5127e-07  
a 2.189085686089327 4.6721e-08 au
q 1.93611893398496 3.1642e-07 au
i 4.968040801241832 1.8577e-05 deg
node 279.2893233598456 0.00027806 deg
peri 144.2927958009385 0.00033167 deg
M 39.87347432304608 0.0001677 deg
tp 2456763.468972402221
(2014-Apr-15.96897240)
0.00055172 TDB
period 1183.02131269099
3.24
3.7873e-05
1.037e-07
d
yr
n .3043055912332778 9.742e-09 deg/d
Q 2.442052438193693 5.212e-08 au
  Orbit Determination Parameters
   # obs. used (total)      208  
   data-arc span      5845 days (16.00 yr)  
   first obs. used      2005-01-17  
   last obs. used      2021-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .38271  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jan-30 21:13:03  

Additional Information
 Earth MOID = .950751 au 
 Jupiter MOID = 2.8207 au 
 T_jup = 3.661 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 18.8   0.6 28 2 parameter fit from 123 observations, autocmod 2.8
comet total magnitude slope K1 4.5   n/a 28 autocmod 2.8

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