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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 2454577.5 (2008-Apr-21.0) TDB
Reference: JPL K215/15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .8198131304213552 3.9072e-08  
a 5.700361750281282 1.943e-06 au
q 1.027130339249029 1.5396e-07 au
i 54.98284402884136 1.493e-05 deg
node 270.3413075480877 1.9552e-05 deg
peri 207.5057205748724 2.7152e-05 deg
M 6.154034496334972 3.8577e-06 deg
tp 2454492.521418305663
(2008-Jan-27.02141831)
1.3718e-05 TDB
period 4971.094885506494
13.61
0.0025417
6.959e-06
d
yr
n .07241865389646859 3.7027e-08 deg/d
Q 10.37359316131354 3.536e-06 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] 6.261133093039536E-10 8.276E-11
A2 [EST] 1.384713115959395E-10 8.302E-14
A3 [EST] -4.258834408917344E-10 1.027E-10
  Orbit Determination Parameters
   # obs. used (total)      1678  
   data-arc span      19976 days (54.69 yr)  
   first obs. used      1967-01-07  
   last obs. used      2021-09-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      1  
   norm. resid. RMS      .69492  
   source      ORB  
   producer      Davide Farnocchia  
   solution date      2021-Sep-20 09:31:28  

Additional Information
 Earth MOID = .0964117 au 
 Jupiter MOID = .738693 au 
 T_jup = 1.601 
[ 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 14.8   1. K215/15 2 parameter fit from 224 observations, autocmod 2.9e
comet total magnitude slope K1 4.5   n/a K215/15 autocmod 2.9e
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

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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1900-Dec-29 05:52 00:03 Jupiter 0.825077561127395 0.825032467052398 0.825122658322382 14.7818388438501 14.7122250094198 2415382.744352691 3.37399924207798 4036.52439414027 1470.80326344931 63.117645833411 77082.6371743262 T K215/15 CATAB v2.0g-lin.ifort 2021-Sep-20 09:32:02 2021-Sep-20 09:32
1930-Feb-23 14:15 00:02 Saturn 1.8796368428614 1.87956308059282 1.87971060657313 8.83443752547939 8.81915125113067 2426031.093529057 2.00933044493049 4509.5931995639 315.460311890795 35.4298114810705 652644.568536055 T K215/15 CATAB v2.0g-lin.ifort 2021-Sep-20 09:32:02 2021-Sep-20 09:32
1980-Dec-02 10:22 < 00:01 Earth 0.486919752141624 0.486917129974367 0.486922374315663 38.4784642919643 38.4783220793774 2444575.931872300 0.174918894399601 203.774436769153 106.519204992726 64.1163690167825 617479.428071217 T K215/15 CATAB v2.0g-lin.ifort 2021-Sep-20 09:32:02 2021-Sep-20 09:32
1995-Dec-28 21:42 < 00:01 Jupiter 0.785150717476137 0.785144132212164 0.785157302752383 15.9280604220776 15.8601861251979 2450080.404269937 0.293166681855417 364.699602149218 69.0468659446558 26.3411096340942 846495.82600155 T K215/15 CATAB v2.0g-lin.ifort 2021-Sep-20 09:32:02 2021-Sep-20 09:32
2008-Jan-01 21:23 < 00:01 Earth 0.252826984554405 0.252826736948957 0.252827232159881 31.9056069623048 31.9052766504436 2454467.390728894 0.0154309068011406 15.2655647261851 11.1920395101796 59.8509176692904 3104326.44934078 T K215/15 CATAB v2.0g-lin.ifort 2021-Sep-20 09:32:02 2021-Sep-20 09:32
2048-Dec-28 11:07 00:01 Earth 0.17525650916387 0.175241764000014 0.175271255537035 31.9633162340836 31.9628405817851 2469438.962916503 1.05346814575747 1039.69089044115 115.164094656906 -45.3448255131309 163460.808961323 T K215/15 CATAB v2.0g-lin.ifort 2021-Sep-20 09:32:02 2021-Sep-20 09:32
2078-Sep-27 00:41 00:05 Jupiter 1.72661983610288 1.72660395539206 1.72663571745372 12.6044529787502 12.5654725787579 2480303.528160028 4.57358802932167 3159.53988368054 664.801148157747 -81.9778861418134 353747.366491532 T K215/15 CATAB v2.0g-lin.ifort 2021-Sep-20 09:32:02 2021-Sep-20 09:32
2107-Feb-09 12:18 00:08 Saturn 1.99837191061135 1.99832481673681 1.99841900953686 9.78022941625483 9.76724442541699 2490665.012328190 7.69787344347203 5703.42233891967 620.13748260162 66.4402789582276 521628.590266323 T K215/15 CATAB v2.0g-lin.ifort 2021-Sep-20 09:32:02 2021-Sep-20 09:32
2130-Dec-25 21:23 00:08 Earth 0.0962403788296444 0.0961908580031864 0.0962900934658512 32.6138467765105 32.6129978723568 2499385.390640658 7.67482210693956 7263.03041920191 180.227434683241 -70.1315163459635 75755.7776594997 T K215/15 CATAB v2.0g-lin.ifort 2021-Sep-20 09:32:02 2021-Sep-20 09:32
2173-Nov-10 17:08 00:21 Jupiter 0.716421218222181 0.71632073471907 0.716521706325497 15.4904686589831 15.41395554951 2515046.213916718 20.7432134052299 6502.81455419056 3618.70635531626 50.1318896486254 26009.6918947788 T K215/15 CATAB v2.0g-lin.ifort 2021-Sep-20 09:32:02 2021-Sep-20 09:32

Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 1994.5       1994 XV   1992r 
 1980.9       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 
 1885.6       1885 IV   1885b 
 1872.0   8P/1871 T1   1871 III   1871d 
 1858.4   8P/1858 A1   1858 I   
 1790.3   8P/1790 A2   1790 II   
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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