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8P/Tuttle
Classification: Jupiter-family Comet* [NEO]          SPK-ID: 1000099
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | 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.


:
Orbital Elements at Epoch 2454466.5 (2008-Jan-01.0) TDB
Reference: JPL K215/9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .8198489011032039 2.1289e-07  
a 5.701503017397313 7.0065e-06 au
q 1.027132033947525 8.4769e-08 au
i 54.98327780014846 1.1205e-05 deg
node 270.3415890294294 4.7773e-06 deg
peri 207.5067625237296 1.6383e-05 deg
M 358.116018851041 4.1098e-06 deg
tp 2454492.522949371923
(2008-Jan-27.02294937)
1.3179e-05 TDB
period 4972.587851565633
13.61
0.0091661
2.51e-05
d
yr
n .07239691097396157 1.3345e-07 deg/d
Q 10.3758740008471 1.2751e-05 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] 5.532960446095076E-10 8.886E-11
A2 [EST] 1.393131275064083E-10 2.104E-13
A3 [EST] -4.580451198980077E-10 1.043E-10
  Orbit Determination Parameters
   # obs. used (total)      1630  
   data-arc span      19783 days (54.16 yr)  
   first obs. used      1967-01-07  
   last obs. used      2021-03-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      2  
   norm. resid. RMS      .69651  
   source      ORB  
   producer      Davide Farnocchia  
   solution date      2021-Mar-19 10:54:51  

Additional Information
 Earth MOID = .0952323 au 
 Jupiter MOID = .738987 au 
 T_jup = 1.600 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 15.0   1. K215/9 2 parameter fit from 210 observations, autocmod 2.9b
comet total magnitude slope K1 4.5   n/a K215/9 autocmod 2.9b
diameter diameter 4.5 km 1. Harmon, J.K.;Nolan,M.C.;Howell,E.S.;Giorgini,J.D. (2008) IAUC 8909 equivalent diameter of a sphere having a volume equal to the sum of a 3km and 4km sphere

8P/Tuttle          Discovered 1790-Jan-09 by Mechain, Pierre F. A. at Paris, France
Reference: comet.disLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 1994.5       1994 XV   1992r 
 1980.8       1980 XIII   1980h 
 1967.2       1967 V   1967a 
 1940.0       1939 X   1939k 
 1926.4       1926 IV   1926a 
 1912.8       1912 IV   1912b 
 1899.2       1899 III   1899b 
 1885.5       1885 IV   1885b 
 1871.9   8P/1871 T1   1871 III   1871d 
 1858.3   8P/1858 A1   1858 I   
 1790.2   8P/1790 A2   1790 II   
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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