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41P/Tuttle-Giacobini-Kresak
Classification: Jupiter-family Comet [NEO]          SPK-ID: 1000100
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
:
Orbital Elements at Epoch 2457844.5 (2017-Apr-01.0) TDB
Reference: JPL K171/18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6612506884287184 3.6904e-07  
a 3.085003278874254 3.4009e-06 au
q 1.0450427369138 3.3356e-08 au
i 9.229131696230207 2.6651e-06 deg
node 141.066286210229 1.4021e-05 deg
peri 62.15858521740492 1.9255e-05 deg
M 357.86232425359 3.2607e-06 deg
tp 2457856.252254856775
(2017-Apr-12.75225486)
7.858e-06 TDB
period 1979.164405801095
5.42
0.0032727
8.96e-06
d
yr
n .1818949446265354 3.0078e-07 deg/d
Q 5.124963820834708 5.6498e-06 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] 1.7443075575162E-8 2.164E-10
A2 [EST] 4.288032804305828E-9 2.154E-10
A3 [EST] 1.47032014107612E-9 1.171E-10
ALN [SET] 24.491 n/a
DT [EST] 11.40671877972504 .5944
R0 [SET] 1. n/a
  Orbit Determination Parameters
   # obs. used (total)      4259  
   # delay obs. used      2  
   # Doppler obs. used      7  
   data-arc span      262 days  
   first obs. used      2016-11-10  
   last obs. used      2017-07-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      2  
   norm. resid. RMS      .41437  
   source      ORB  
   producer      Davide Farnocchia  
   solution date      2018-Jan-31 15:24:02  

Additional Information
 Earth MOID = .133597 au 
 Jupiter MOID = .488323 au 
 T_jup = 2.827 
 Using nonstandard R0=1 au and ALN=24.491 
[ 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 15.3   1. K171/18 from 493 observations, assumed slope, autocmod 2.6l
comet total magnitude slope K1 17.   n/a K171/18 autocmod 2.6l
diameter diameter 1.4 km n/a Lamy,P.L.,Toth,I.,Fernandez,Y.R.,Weaver,H.A. (2004) Comets II, pp. 223-264  

41P/Tuttle-Giacobini-Kresak          Discovered 1858-May-03 by Tuttle, Horace at Harvard College Observatory, Massachusetts
Reference: comet.disLast Updated: 2003-08-29

[ hide close-approach data ]
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
1904-Sep-16 05:11 2_21:25 Jupiter 0.660614679259145 0.649482491391227 0.672306725028445 6.28472023237538 6.07728243226038 2416739.715804301 4165.37588365358 1129358.20396124 671.693786782586 60.0560029110437 88588.3446181653 T K171/18 CATAB v2.0e-lin.ifort 2018-Mar-07 07:03:13 2018-Mar-07 07:04
1916-Nov-30 16:05 17:07 Jupiter 1.43089668854333 1.39195902259869 1.47058310816277 9.82588076234291 9.76545074503334 2421198.169830310 1027.12753060219 2554163.58888926 418.317220343051 40.3698000835136 160535.12494374 T K171/18 CATAB v2.0e-lin.ifort 2018-Mar-07 07:03:13 2018-Mar-07 07:04
1962-Apr-07 21:36 1_19:28 Earth 0.233733742024414 0.192871486077589 0.274828478167063 9.05715341831102 9.05589469753799 2437762.400002325 2607.8687477275 2076242.97505695 181.456188165914 -10.0488381366257 28013.9857429275 T K171/18 CATAB v2.0e-lin.ifort 2018-Mar-07 07:03:13 2018-Mar-07 07:04
1963-Sep-17 18:50 13:45 Jupiter 1.58588346291594 1.56500342811173 1.60676515634307 11.6902045578361 11.6444269881435 2438290.284470866 824.673774205567 1044384.76944261 645.273062224549 6.58530174049664 29573.5195530767 T K171/18 CATAB v2.0e-lin.ifort 2018-Mar-07 07:03:13 2018-Mar-07 07:04
1975-Jun-09 20:16 03:11 Jupiter 0.365977982995487 0.365393544783496 0.366589041958476 6.94391180929414 6.60220375538004 2442573.344710751 191.193511037846 162543.606965824 486.077530135514 -78.5729169341539 155745.009249769 T K171/18 CATAB v2.0e-lin.ifort 2018-Mar-07 07:03:13 2018-Mar-07 07:04
1988-Feb-16 02:00 01:39 Jupiter 0.672250529336159 0.671921694449532 0.672581864458164 7.02268156581748 6.840913352808 2447207.583618131 99.3522298382933 67552.0163112667 95.6055549590279 76.8283119336926 328059.972688417 T K171/18 CATAB v2.0e-lin.ifort 2018-Mar-07 07:03:13 2018-Mar-07 07:04
2017-Apr-01 00:53 < 00:01 Earth 0.141992216285277 0.141992049722634 0.14199238284792 8.60589767635264 8.60371692239217 2457844.536482815 0.0181178608893954 8.34801558061308 3.4254153844331 -6.54091415642986 1714876.91259922 T K171/18 CATAB v2.0e-lin.ifort 2018-Mar-07 07:03:13 2018-Mar-07 07:04
2034-Nov-26 10:48 00:23 Jupiter 1.74110307830782 1.74040658994946 1.74179957924638 12.207173356913 12.167255610278 2464292.950269200 23.165460275279 35509.2155191729 288.689612372969 13.0244641197115 130224.996228324 T K171/18 CATAB v2.0e-lin.ifort 2018-Mar-07 07:03:13 2018-Mar-07 07:04
2046-Sep-12 16:00 02:32 Jupiter 0.508266300623107 0.507879487105989 0.508653523415254 6.53692211410799 6.27681157990503 2468601.166688849 152.193796805423 30228.3018508361 284.028450229775 -48.167542338487 289839.651622892 T K171/18 CATAB v2.0e-lin.ifort 2018-Mar-07 07:03:13 2018-Mar-07 07:04
2059-May-06 18:57 01:26 Jupiter 0.792581250651161 0.788867532305706 0.796310298477178 8.54524616173263 8.41925500526492 2473220.289615346 86.2437126214633 255140.964104106 396.97085585785 44.0243951469439 158103.823811681 T K171/18 CATAB v2.0e-lin.ifort 2018-Mar-07 07:03:13 2018-Mar-07 07:04
2066-Jun-08 05:28 08:05 Earth 0.330166935554542 0.315483659549908 0.34494840005442 19.0353040829425 19.0348801240047 2475809.728047953 485.463485039832 787605.064599077 287.655058282811 -21.11294973072 58117.1875177591 T K171/18 CATAB v2.0e-lin.ifort 2018-Mar-07 07:03:13 2018-Mar-07 07:04
2082-Jun-18 02:26 09:03 Earth 0.481904868076889 0.462320834152451 0.501547464613263 23.8036517108785 23.8034194320778 2481663.601470394 543.129623592811 1013279.2973287 699.360795132712 -15.1452681928516 25111.533897027 T K171/18 CATAB v2.0e-lin.ifort 2018-Mar-07 07:03:13 2018-Mar-07 07:04
2106-Feb-07 03:01 15:51 Jupiter 0.564003027874132 0.56331456203296 0.564701580821536 6.4685305703105 6.2320364185031 2490297.625923946 950.656340493554 126203.996076553 1047.51077589054 -72.2811175398858 80367.369479865 T K171/18 CATAB v2.0e-lin.ifort 2018-Mar-07 07:03:13 2018-Mar-07 07:04
2109-Feb-26 09:10 20:45 Earth 0.368680204100882 0.333317123736277 0.404799763707004 18.1572444118069 18.156846380385 2491412.881686272 1245.04690944973 1967330.44182277 443.390299700229 -24.928086388163 40260.8470343789 T K171/18 CATAB v2.0e-lin.ifort 2018-Mar-07 07:03:13 2018-Mar-07 07:04
2118-Jul-30 11:12 12:16 Jupiter 1.14312069352787 1.12508148934254 1.16120672261091 10.2061562739434 10.1332955267647 2494853.966990723 735.695422309699 972265.363095149 1663.99055414378 22.8873719164702 32940.0012875509 T K171/18 CATAB v2.0e-lin.ifort 2018-Mar-07 07:03:13 2018-Mar-07 07:04
2125-Jun-17 19:09 23:24 Earth 0.446371758476235 0.396183714422551 0.496742872196295 23.5502093594271 23.5499558913838 2497368.298170349 1403.52483284384 2547443.99980447 1454.37048585593 -10.1311284450905 7476.01322753706 T K171/18 CATAB v2.0e-lin.ifort 2018-Mar-07 07:03:13 2018-Mar-07 07:04
2141-May-23 16:58 1_09:18 Earth 0.114104523051886 0.0952626551690108 0.13880801284051 12.9806521288366 12.9788530794651 2503187.207063110 1997.61039339429 1692186.8038837 1456.65179688947 -48.8524078185694 9264.46506652209 T K171/18 CATAB v2.0e-lin.ifort 2018-Mar-07 07:03:13 2018-Mar-07 07:04
2153-Jun-03 18:23 09:07 Jupiter 1.30451725675758 1.29419650111134 1.31485023478415 10.3788524418977 10.3161028899993 2507581.265863775 546.611346661491 552325.5533618 2551.99440927654 22.1291786723847 19084.4689104073 T K171/18 CATAB v2.0e-lin.ifort 2018-Mar-07 07:03:13 2018-Mar-07 07:04
2157-Jun-13 02:42 17:05 Earth 0.459297235429801 0.425384848118553 0.493327493619664 22.4776213294584 22.4773632397611 2509051.612482104 1024.95947183857 1733294.11730582 2146.12274932284 -12.1911618828944 6218.01672283748 T K171/18 CATAB v2.0e-lin.ifort 2018-Mar-07 07:03:13 2018-Mar-07 07:04
2165-Nov-22 20:52 11:07 Jupiter 0.491697004686758 0.490172311818879 0.493255092895933 6.50719918155522 6.23685324986801 2512136.369756660 667.375792752917 220401.348686082 1754.40345332196 -69.2748685730946 64791.1814891968 T K171/18 CATAB v2.0e-lin.ifort 2018-Mar-07 07:03:13 2018-Mar-07 07:04
2177-Sep-28 04:17 07:45 Jupiter 1.72237134987905 1.71270435243096 1.73203976724076 12.3279434940941 12.2879875044346 2516463.678458198 465.322185173708 488373.989574026 2162.95634419533 10.0997589051773 15805.994266282 T K171/18 CATAB v2.0e-lin.ifort 2018-Mar-07 07:03:13 2018-Mar-07 07:04
2195-Apr-06 05:48 1_10:02 Earth 0.178096905164813 0.16683639892597 0.190347224089196 9.82358789737848 9.82206482859526 2522862.741451126 2042.20885803958 884674.474809296 1000.82990475164 -48.3665445963135 11541.2648299533 T K171/18 CATAB v2.0e-lin.ifort 2018-Mar-07 07:03:13 2018-Mar-07 07:04

Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 1990.2       1990 II   1989b1 
 1979.3       1978 XXV   1978r 
 1973.9       1973 VI   1973b 
 1963.1       1962 V   1962b 
 1952.3   41P/1951 H1   1951 IV   1951f 
 1908.9   41P/1907 L1   1907 III   1907c 
 1860.1   41P/1858 J1   1858 III   
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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