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C/2009 U1 (Garradd)
Classification: Hyperbolic Comet          SPK-ID: 1003045
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]

[ show orbit diagram ]
Orbital Elements at Epoch 2455123.5 (2009-Oct-19.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e 1.015009237069738 0.55271  
a -358.6194925444423 13239 au
q 5.382604981428634 4.5837 au
i 91.23607043896649 15.128 deg
node 43.3854615225045 18.456 deg
peri 269.0430110232571 109.62 deg
M .05458020301657086 3.0489 deg
tp 2454747.418551961071
(2008-Oct-07.91855196)
770.3 TDB
period n/a
n/a
n/a
n/a
d
yr
n .0001451286770490235 0.0080367 deg/d
Q n/a n/a au
  Orbit Determination Parameters
   # obs. used (total)      10  
   data-arc span      2 days  
   first obs. used      2009-10-17  
   last obs. used      2009-10-19  
   two-body model      T  
   norm. resid. RMS      .72828  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 23:31:36  

Additional Information
 Earth MOID = 5.27451 au 
 Jupiter MOID = 3.48911 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 7.8   0.2 4 from 7 observations, assumed slope, autocmod 2.9c
comet total magnitude slope K1 10.   n/a 4 autocmod 2.9c
comet nuclear magnitude M2 11.9   0.2 4 from 3 observations, autocmod 2.9c
comet nuclear magnitude slope K2 5.   n/a 4 autocmod 2.9c
comet nuclear phase coefficient PC 0.03   n/a 4 autocmod 2.9c
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]
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