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C/2011 L4 (PANSTARRS)
Classification: Hyperbolic Comet          SPK-ID: 1003133
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]

[ 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 2456365.5 (2013-Mar-14.0) TDB
Reference: JPL 137 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e 1.000032767108972 1.3011e-07  
a -9202.649647082981 36.546 au
q .3015442238164768 1.5084e-07 au
i 84.20819702923397 7.1982e-06 deg
node 65.66588639150341 6.8436e-06 deg
peri 333.6516376633611 5.6714e-06 deg
M 4.276003487285466E-6 2.546e-08 deg
tp 2456361.669960002417
(2013-Mar-10.16996000)
1.8605e-05 TDB
period n/a
n/a
n/a
n/a
d
yr
n 1.116438337454412E-6 6.6506e-09 deg/d
Q n/a n/a au
  Orbit Determination Parameters
   # obs. used (total)      5413  
   data-arc span      1194 days (3.27 yr)  
   first obs. used      2011-05-21  
   last obs. used      2014-08-27  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   norm. resid. RMS      .5211  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 23:31:52  

Additional Information
 Earth MOID = .660345 au 
 Jupiter MOID = .166508 au 
[ hide covariance matrix ]
Orbit Covariance (6×6)
  e q tp node peri i
e 1.692958913099504E-14 -1.677301430717466E-14 1.372265727583406E-12 -8.27368183994857E-14 -2.706308679664963E-13 -1.471192093417666E-13
q -1.677301430717466E-14 2.27527419516682E-14 -2.002343695559645E-12 7.302929446180307E-14 2.759820108798873E-13 1.551051534658574E-13
tp 1.372265727583406E-12 -2.002343695559645E-12 3.461569912504721E-10 -4.003447249019107E-12 7.715727760313315E-12 -9.94750343973423E-12
node -8.27368183994857E-14 7.302929446180307E-14 -4.003447249019107E-12 4.68351282801247E-11 -2.771495102623155E-12 -1.55713164915308E-11
peri -2.706308679664963E-13 2.759820108798873E-13 7.715727760313315E-12 -2.771495102623155E-12 3.216533614008335E-11 4.510883782051792E-12
i -1.471192093417666E-13 1.551051534658574E-13 -9.94750343973423E-12 -1.55713164915308E-11 4.510883782051792E-12 5.181471642735721E-11

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 7.8   2. 137 2 parameter fit from 708 observations, autocmod 2.9c
comet total magnitude slope K1 6.5   n/a 137 autocmod 2.9c
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]
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