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103P/Hartley 2
Classification: Jupiter-family Comet [NEO]          SPK-ID: 1000041
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
:
Orbital Elements at Epoch 2456981.5 (2014-Nov-20.0) TDB
Reference: JPL 252 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6937804720128784 5.9767e-09  
a 3.475268743304754 1.1101e-08 AU
q 1.064195154203179 2.0454e-08 AU
i 13.6042724340803 2.132e-06 deg
node 219.7487450736021 5.8655e-06 deg
peri 181.3222857728302 6.1879e-06 deg
M 225.7701522441131 1.4848e-06 deg
tp 2457863.823030096833
(2017-Apr-20.32303010)
1.3758e-05 JED
period 2366.361104815672
6.48
1.1339e-05
3.104e-08
d
yr
n .1521323179574667 7.2896e-10 deg/d
Q 5.886342332406328 1.8803e-08 AU

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
AJ1 [SET] 2.477513858655444E-9 n/a
AJ2 [SET] 4.256439146454415E-9 n/a
ALF [SET] 93.05206777907777 n/a
DEL [SET] -1.38277922386182 n/a
ET1 [SET] 30. n/a
ET2 [SET] 135. n/a
  Orbit Determination Parameters
   # obs. used (total)      6506  
   data-arc span      9922 days (27.16 yr)  
   first obs. used      1986-03-15  
   last obs. used      2013-05-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .68296  
   data source      ORB  
   producer      Ryan S. Park  
   solution date      2014-Nov-10 13:49:39  

Additional Information
 Earth MOID = .0720049 AU 
 T_jup = 2.641 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 14.7 mag 1. 252 2 parameter fit from 791 observations, autocmod 2.6
comet total magnitude slope K1 8.   n/a 252 autocmod 2.6
diameter diameter 1.6 km n/a Lamy,P.L.,Toth,I.,Fernandez,Y.R.,Weaver,H.A. (2004) Comets II, pp. 223-264  
rotation period rot_per 18.1 h n/a Asteroid Lightcurve DataBase (Rev. 2014-Mar-01) Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Harmon, J.K.; Nolan, M.C; Howell, E.S.; Giorgini, J.D. (2010) CBET 2515.]
[Belton, M.J.S.; Thomas, P.; Li, J.-Y.; Williams, J.; et al. (2013) Icarus 222, 595-609.]

103P/Hartley 2          Discovered 1986-Mar-15 by Hartley, Malcolm at U. K. Schmidt Telescope Unit, Siding Spring
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
1900-Mar-20 23:03 09:05 Jupiter 0.27852431785665 0.261849994394067 0.295045559775996 7.897675946385 7.50273746474109 2415099.460335584 545.020065373801 111872.664735992 2.80922435195165 1.05247897893536 10383.396452096 T 252 CATAB v2.0c-linF95 2014-Nov-10 13:52:13 2014-Nov-10 13:52
1932-Nov-01 06:12 04:24 Jupiter 1.70412970853345 1.70366813403004 1.7046035329329 6.85769368036032 6.78482721967317 2427012.758627503 263.979884261774 28926.1646835715 11.1915823980271 50.5292621238621 2008839.01288481 T 252 CATAB v2.0c-linF95 2014-Nov-10 13:52:13 2014-Nov-10 13:52
1947-Aug-25 14:26 00:04 Jupiter 0.203504699886991 0.203355016789432 0.203654377209526 7.83142925458247 7.28058588389577 2432423.101231950 3.51297401090924 992.628697521295 1.29823904607867 -13.9994094451233 686511.745013093 T 252 CATAB v2.0c-linF95 2014-Nov-10 13:52:13 2014-Nov-10 13:52
1971-Apr-28 19:55 < 00:01 Jupiter 0.0852791465338176 0.0852782882565889 0.0852800048110539 8.3305326044254 7.0379733688713 2441070.329680134 0.127472616163509 5.23016364623831 1.32615305836383 7.71835204128527 355291.329497883 T 252 CATAB v2.0c-linF95 2014-Nov-10 13:52:13 2014-Nov-10 13:52
1982-Nov-02 13:04 < 00:01 Jupiter 0.325518490890365 0.325517597280012 0.325519384502876 6.64179144739984 6.23772793929672 2445276.044384610 0.385136790230746 5.88467935599247 1.26720098061428 45.4094809270846 3053008.3499726 T 252 CATAB v2.0c-linF95 2014-Nov-10 13:52:13 2014-Nov-10 13:52
1993-Dec-19 07:08 < 00:01 Jupiter 0.374273635302825 0.374273209150473 0.374274061455409 7.10442240119936 6.77839192376043 2449340.797502357 0.117379042015494 4.79288773110137 1.64001355942007 62.6129049847347 3612135.82088875 T 252 CATAB v2.0c-linF95 2014-Nov-10 13:52:13 2014-Nov-10 13:52
2005-Dec-10 10:28 < 00:01 Jupiter 1.82617664686244 1.82617563684694 1.8261776568774 11.7473495759616 11.7077998059151 2453714.936392183 0.032932070082468 12.9763318498661 3.17819786766941 8.02700514681928 4651455.82159089 T 252 CATAB v2.0c-linF95 2014-Nov-10 13:52:13 2014-Nov-10 13:52
2010-Oct-20 17:33 < 00:01 Earth 0.120878273202523 0.120878195428774 0.120878350976273 11.879644140354 11.8777884966237 2455490.231558238 0.00629437754569781 3.00336674913568 1.84867685346232 15.7031913438958 4645531.48734196 T 252 CATAB v2.0c-linF95 2014-Nov-10 13:52:13 2014-Nov-10 13:52
2023-Sep-26 05:55 < 00:01 Earth 0.382539563704781 0.382538410857835 0.382540716551553 18.2802863044447 18.279905275883 2460213.746357015 0.0322265840633712 55.1484773062373 2.72255003044284 -7.77234791502815 2578934.17973128 T 252 CATAB v2.0c-linF95 2014-Nov-10 13:52:13 2014-Nov-10 13:52
2054-Mar-18 21:16 < 00:01 Jupiter 0.717758480276234 0.717757609950964 0.717759350601161 8.51126167766954 8.37146266998213 2471345.385891502 0.0772484724851544 7.77696341332762 2.99967395785282 -19.2819269114055 2476828.49248503 T 252 CATAB v2.0c-linF95 2014-Nov-10 13:52:13 2014-Nov-10 13:52
2065-Nov-13 19:51 < 00:01 Jupiter 0.267564060320322 0.267563620931281 0.267564499709435 6.90624799707095 6.43155494380033 2475603.326910427 0.0656923220702761 2.30759338774405 0.707666847566401 -4.50991911334139 2023556.24987657 T 252 CATAB v2.0c-linF95 2014-Nov-10 13:52:13 2014-Nov-10 13:52
2076-Dec-11 09:18 < 00:01 Jupiter 0.246209601770701 0.246209315951263 0.246209887591657 6.99182552920018 6.48113607112583 2479648.887765444 0.128211554672607 4.26535563053141 1.10601865341715 -78.1759889269059 3751648.92517882 T 252 CATAB v2.0c-linF95 2014-Nov-10 13:52:13 2014-Nov-10 13:52
2088-Jul-29 06:03 < 00:01 Jupiter 0.473506683039472 0.473502828400996 0.473510537674408 8.11842679613138 7.89501079920514 2483896.751833184 0.107835918668155 31.133554377914 1.68729697438483 20.3674881618748 1956801.93552491 T 252 CATAB v2.0c-linF95 2014-Nov-10 13:52:13 2014-Nov-10 13:52
2136-Dec-20 04:02 < 00:01 Jupiter 1.44756092944203 1.44754713507238 1.44757472374261 10.3228831197303 10.2660430762918 2501571.667903800 0.558433259992419 184.755745643893 5.79040873962703 -16.9147119280965 1859303.03154828 T 252 CATAB v2.0c-linF95 2014-Nov-10 13:52:13 2014-Nov-10 13:52
2148-Aug-24 00:02 00:01 Jupiter 0.448298263571698 0.448296869122132 0.448299658093753 6.58063676223104 6.28696631949669 2505836.501176460 1.22143088508503 29.1831558365887 1.87577114403023 82.4050252850218 3862896.38903712 T 252 CATAB v2.0c-linF95 2014-Nov-10 13:52:13 2014-Nov-10 13:52
2159-Aug-28 14:33 < 00:01 Jupiter 0.238243402350904 0.238232379617363 0.238254425090514 7.94274156484717 7.48174974623688 2509858.106169343 0.151840686072031 79.1949165447459 1.35910110590874 21.058033147403 1197534.19524527 T 252 CATAB v2.0c-linF95 2014-Nov-10 13:52:13 2014-Nov-10 13:52
2178-Oct-25 22:44 < 00:01 Earth 0.319551515381573 0.319331105145189 0.319772301024455 8.71142157634636 8.71046436837911 2516856.446965051 0.215136442148633 12898.546761892 11.379336577535 -56.8576019116004 2165948.42637416 T 252 CATAB v2.0c-linF95 2014-Nov-10 13:52:13 2014-Nov-10 13:52
2195-Mar-29 12:10 00:05 Jupiter 0.0892086322929213 0.0891236120966933 0.0892940200832592 8.12923053684706 6.86255714821249 2522855.006794715 4.69005256344899 1208.14359457477 0.765655911778164 -67.3289050216203 2091016.48518103 T 252 CATAB v2.0c-linF95 2014-Nov-10 13:52:13 2014-Nov-10 13:52

Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 1991.4   103P/1991 N1   1991 XV   1991t 
 1984.9   103P/1986 E2   1985 V   1986c 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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