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C/2011 U3 (PANSTARRS)
Classification: Hyperbolic Comet          SPK-ID: 1003156
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2455872.5 (2011-Nov-07.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e 1.000442489616259 0.00011362  
a -2421.297772800368 620.8 AU
q 1.07139912233502 0.00041038 AU
i 116.7750126450803 0.0082755 deg
node 228.3789293810737 6.7732e-05 deg
peri 287.8254564937703 0.017999 deg
M -.001736334314648582 0.00066785 deg
tp 2456082.394751051065
(2012-Jun-03.89475105)
0.011061 JED
period n/a
n/a
n/a
n/a
d
yr
n 8.272404650205624E-6 3.1814e-06 deg/d
Q n/a n/a AU
  Orbit Determination Parameters
   # obs. used (total)      60  
   data-arc span      94 days  
   first obs. used      2011-10-24  
   last obs. used      2012-01-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   fit RMS      .44461  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-13 19:44:49  

Additional Information
 Earth MOID = .468895 AU 
 T_jup = -0.572 
[ 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 12.1 mag 0.6 7 2 parameter fit from 48 observations, autocmod 2.5c
comet total magnitude slope K1 14.   n/a 7 autocmod 2.5c

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ]
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