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186P/Garradd
Classification: Jupiter-family Comet          SPK-ID: 1002441
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

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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.


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Orbital Elements at Epoch 2455729.5 (2011-Jun-17.0) TDB
Reference: JPL 61 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1270539184613439 1.8698e-07  
a 4.949083717460237 1.8898e-07 au
q 4.320283238363679 8.9541e-07 au
i 28.55461486190552 1.4708e-05 deg
node 327.6005592497961 4.2911e-05 deg
peri 287.2726799170197 0.0002231 deg
M 99.73331682072509 0.00017723 deg
tp 2454615.402014086842
(2008-May-28.90201409)
0.0019663 TDB
period 4021.477352946026
11.01
0.00023034
6.306e-07
d
yr
n .08951934038277592 5.1274e-09 deg/d
Q 5.577884196556795 2.1299e-07 au
  Orbit Determination Parameters
   # obs. used (total)      359  
   data-arc span      16570 days (45.37 yr)  
   first obs. used      1975-05-31  
   last obs. used      2020-10-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .74007  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Oct-18 17:46:44  

Additional Information
 Earth MOID = 3.4313 au 
 Jupiter MOID = .276755 au 
 T_jup = 2.751 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 6.8   01. 61 from 205 observations, assumed slope, autocmod 2.8
comet total magnitude slope K1 13.25   n/a 61 autocmod 2.8
comet nuclear magnitude M2 12.6   0.8 61 from 126 observations, autocmod 2.8
comet nuclear magnitude slope K2 5.   n/a 61 autocmod 2.8
comet nuclear phase coefficient PC 0.03   n/a 61 autocmod 2.8

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2008.4   186P/2007 B3       
 1975.4   186P/1977 O1       
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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