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55P/Tempel-Tuttle
Classification: Halley-type Comet* [NEO]          SPK-ID: 1000095
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
:
Orbital Elements at Epoch 2451040.5 (1998-Aug-15.0) TDB
Reference: JPL J985/69 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e 0.905552720972412 6.8031e-08  
a 10.3383382297577 5.1724e-07 AU
q 0.976427915467506 7.3483e-07 AU
i 162.486575379434 1.9316e-05 deg
node 235.270989149082 0.00010014 deg
peri 172.5002736828059 0.000146 deg
M 4.97833968468816 1.3565e-06 deg
tp 2450872.597734112361
(1998-Feb-28.09773411)
3.9005e-05 JED
period 12141.56115249823
33.24
0.00091119
2.495e-06
d
yr
n .02965022335088491 2.2252e-09 deg/d
Q 19.70024854404794 9.8563e-07 AU

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] 1.580981480640338E-9 3.486E-10
A2 [EST] 9.186415654543854E-11 1.974E-13
  Orbit Determination Parameters
   # obs. used (total)      392  
   data-arc span      48407 days (132.53 yr)  
   first obs. used      1865-12-22  
   last obs. used      1998-07-05  
   planetary ephem.      DE405  
   SB-pert. ephem.      SB405-CPV-2  
   fit RMS      .72806  
   data source      ORB  
   producer      M.S.W. Keesey  
   solution date      2002-Jan-03 16:05:39  

Additional Information
 Earth MOID = .00848081 AU 
 T_jup = -0.637 
[ 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 10. mag n/a ICQ 1998 Handbook  
comet total magnitude slope K1 25.0   n/a ICQ 1998 Handbook  
comet nuclear magnitude M2 16. mag n/a ICQ 1998 Handbook  
comet nuclear magnitude slope K2 10.0   n/a ICQ 1998 Handbook  
diameter diameter 3.6 km n/a Lamy,P.L.,Toth,I.,Fernandez,Y.R.,Weaver,H.A. (2004) Comets II, pp. 223-264  
geometric albedo albedo 0.06   0.015 Earth, Moon, and Planets, v. 89, Issue 1, p. 117-134 (2002)  

55P/Tempel-Tuttle          Discovered 1866-Jan-06 by Tuttle, Horace at Harvard College Observatory, Massachusetts
First known observation: 1366/10/25
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
1901-Mar-16 22:14 00:02 Jupiter 1.95980488337754 1.95973462812712 1.95987513993869 21.9548600523866 21.9351654919557 2415460.4264 2.43445152391997 1107.22030733759 84.0196102034245 -24.3557806922894 504687.828702114 T J985/69 CATAB v2.0a-linF95 2006-Mar-28 13:07:01 2006-Mar-28 13:07
1982-Mar-16 01:53 00:06 Uranus 1.003474652508 1.00345156572408 1.00349773992643 8.94899684084585 8.94468246309577 2445044.57854 6.15960786624408 673.838013730037 85.8799573491993 48.6219937521282 512306.862116404 T J985/69 CATAB v2.0a-linF95 2006-Mar-28 13:07:01 2006-Mar-28 13:07
2029-Sep-01 00:43 00:01 Jupiter 1.51567577319996 1.51565780016378 1.51569374629685 21.2127639629414 21.1864029964834 2462380.52998 1.54014929447434 274.1404328237 173.448733031274 -19.4566741061059 299900.783025026 T J985/69 CATAB v2.0a-linF95 2006-Mar-28 13:07:01 2006-Mar-28 13:07
2032-Jun-10 00:58 00:01 Jupiter 1.32245517215734 1.32244958901338 1.32246075581929 27.1127866631269 27.0891531016722 2463393.54045 1.82771324402268 640.983561663624 64.7125809682954 75.5062710637874 1227642.59205605 T J985/69 CATAB v2.0a-linF95 2006-Mar-28 13:07:01 2006-Mar-28 13:07
2064-Mar-27 09:45 00:02 Jupiter 1.61191112975471 1.61189123787216 1.61193102181776 27.609969019682 27.5909303011192 2475006.90691 2.9668171816673 684.582783986342 238.643343335141 -47.9731954248266 331142.37854212 T J985/69 CATAB v2.0a-linF95 2006-Mar-28 13:07:01 2006-Mar-28 13:07
2149-Nov-06 10:44 01:01 Uranus 0.572511333988947 0.572465052622231 0.572557659731024 9.07227883826878 9.06481826230062 2506275.94744 61.8200962184578 3393.91728707513 259.94455242846 74.857159637553 124893.326922754 T J985/69 CATAB v2.0a-linF95 2006-Mar-28 13:07:01 2006-Mar-28 13:07
2160-Aug-17 17:03 00:21 Saturn 0.684074831823824 0.683956489935212 0.684193180489045 16.0073783693735 15.9842006987235 2510213.21049 21.6851768909663 2707.46989361101 552.763345383264 29.7424591369197 40077.9618582502 T J985/69 CATAB v2.0a-linF95 2006-Mar-28 13:07:01 2006-Mar-28 13:07
2163-Dec-18 05:52 00:08 Earth 0.13248387176615 0.132385882495745 0.132581870644173 70.2254650354854 70.225178646966 2511430.74482 8.89154311798798 5130.72011070181 72.8288536577223 19.9347410745267 91620.3662305804 T J985/69 CATAB v2.0a-linF95 2006-Mar-28 13:07:01 2006-Mar-28 13:07
2195-Sep-01 10:46 00:16 Jupiter 1.30024359460444 1.30018915315138 1.3002980367197 21.8157699594623 21.7858888150514 2523010.94889 16.494475269069 1412.23775846956 812.946441729169 83.5143401973959 81998.4991271005 T J985/69 CATAB v2.0a-linF95 2006-Mar-28 13:07:01 2006-Mar-28 13:07
2198-Jun-01 05:58 00:16 Jupiter 1.18726953122589 1.1872334566058 1.187305605889 26.2766570395858 26.2494926424205 2524014.74899 16.37181543706 1311.21033719423 709.910740076077 63.0235746405934 93413.9083747298 T J985/69 CATAB v2.0a-linF95 2006-Mar-28 13:07:01 2006-Mar-28 13:07

Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 1998.2   55P/1997 E1       
 1964.9   55P/1965 M2   1965 IV   1965i 
 1865.2   55P/1865 Y1   1866 I   
 1699.0   55P/1699 U1   1699 II   
 1366.5   55P/1366 U1   1366    
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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