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

[ show orbit diagram ]
Orbital Elements at Epoch 2456365.5 (2013-Mar-14.0) TDB
Reference: JPL 127 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e 1.000032676829852 1.2568e-07  
a -9228.081231983111 35.497 AU
q .3015444402777084 1.445e-07 AU
i 84.20818981741935 6.8992e-06 deg
node 65.66588375966187 6.6327e-06 deg
peri 333.651638601057 5.4884e-06 deg
M 4.258357556694757E-6 2.4559e-08 deg
tp 2456361.669943647491
(2013-Mar-10.16994365)
1.7726e-05 JED
period n/a
n/a
n/a
n/a
d
yr
n 1.111826345297814E-6 6.4152e-09 deg/d
Q n/a n/a AU
  Orbit Determination Parameters
   # obs. used (total)      5398  
   data-arc span      1193 days (3.27 yr)  
   first obs. used      2011-05-21  
   last obs. used      2014-08-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   fit RMS      .55472  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Oct-09 13:43:49  

Additional Information
 Earth MOID = .660345 AU 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 7.5 mag 2. 127 2 parameter fit from 701 observations, autocmod 2.6
comet total magnitude slope K1 7.   n/a 127 autocmod 2.6
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]
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