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9P/Tempel 1
Classification: Jupiter-family Comet          SPK-ID: 1000093
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
:
Orbital Elements at Epoch 2457375.5 (2015-Dec-19.0) TDB
Reference: JPL 160 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5098191971027368 1.0745e-08  
a 3.146531761968834 6.2783e-08 au
q 1.542369465423623 5.294e-08 au
i 10.4733239248498 6.3475e-06 deg
node 68.7682816756504 8.469e-06 deg
peri 179.1872688303726 1.7658e-05 deg
M 319.8162046132129 1.7479e-05 deg
tp 2457603.059546634289
(2016-Aug-02.55954663)
0.00010578 JED
period 2038.668473194565
5.58
6.1016e-05
1.671e-07
d
yr
n .1765858474457522 5.2851e-09 deg/d
Q 4.750694058514044 9.4791e-08 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] 1.129917594977698E-10 1.551E-11
A2 [EST] 1.597079003984403E-11 1.558E-13
A3 [EST] 1.420598908277583E-10 1.851E-11
  Orbit Determination Parameters
   # obs. used (total)      9981  
   data-arc span      17697 days (48.45 yr)  
   first obs. used      1967-06-08  
   last obs. used      2015-11-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .41057  
   data source      ORB  
   producer      Ryan S. Park  
   solution date      2015-Dec-09 11:31:05  

Additional Information
 Earth MOID = .528971 au 
 T_jup = 2.969 
[ 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 13.1 mag 1.1 autocmod soln K051/22  
comet total magnitude slope K1 8.0   n/a autocmod soln K051/22  
diameter diameter 6.0 km 0.2 A'Hearn, M.F. et al. (2005) Science 310:258-264  
extent extent 7.6x4.9 km n/a A'Hearn, M.F. et al. (2005) Science 310:258-264 preliminary shape model
rotation period rot_per 40.7 h n/a A'Hearn, M.F. et al. (2005) Science 310:258-264  
geometric albedo albedo 0.05   0.02 Earth, Moon, and Planets, v. 89, Issue 1, p. 117-134 (2002)  

9P/Tempel 1          Discovered 1867-Apr-03 by Tempel, William at Marseilles, France
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
1941-Oct-12 22:20 < 00:01 Jupiter 0.412265614820793 0.412258084841483 0.412273144719882 5.09079385656098 4.66980421778136 2430280.430785911 0.502356702208987 39.3645623922849 2.6406293210686 -4.25794900154642 179954.070525231 T 160 CATAB v2.0c-linF95 2015-Dec-09 11:42:02 2015-Dec-09 11:42
1953-Sep-12 00:56 00:01 Jupiter 0.758653293666295 0.758640213340986 0.758666373879259 6.03807998372271 5.85025183204158 2434632.539100979 1.23701073988239 82.6841876825368 9.48952144103009 4.94796319674231 168632.868844549 T 160 CATAB v2.0c-linF95 2015-Dec-09 11:42:02 2015-Dec-09 11:42
2024-May-26 13:03 < 00:01 Jupiter 0.550644119081713 0.550640956168486 0.550647281988608 5.28210944394458 4.98238911019444 2460457.043442995 0.551373494078165 17.0074788358323 3.97676706220805 -17.8502571942148 679994.487287208 T 160 CATAB v2.0c-linF95 2015-Dec-09 11:42:02 2015-Dec-09 11:42
2036-Apr-07 03:44 < 00:01 Jupiter 0.910661795049542 0.910653395592361 0.910670194442672 6.16902891259421 6.01636789338503 2464790.655579724 0.899210133220854 67.4438846421718 6.98012179603204 6.47398241415934 299940.233897386 T 160 CATAB v2.0c-linF95 2015-Dec-09 11:42:02 2015-Dec-09 11:42
2108-Jan-14 05:31 < 00:01 Jupiter 1.88624219898545 1.88623054532437 1.8862538526059 9.08633003641169 9.03677418912159 2491003.729664186 0.880843327564159 120.930398514567 32.7104869992118 -7.69389215781214 389444.820914432 T 160 CATAB v2.0c-linF95 2015-Dec-09 11:42:02 2015-Dec-09 11:42
2119-Nov-28 22:44 00:02 Jupiter 0.497002303451675 0.496993191894158 0.497011414971813 4.86139356439131 4.49717932423591 2495340.447155784 1.93853035296499 38.5597196908559 9.20055020508464 -5.40547704429981 165126.415596591 T 160 CATAB v2.0c-linF95 2015-Dec-09 11:42:02 2015-Dec-09 11:42
2131-Nov-14 06:08 00:01 Jupiter 1.13298291103621 1.13296880718487 1.13299701477771 6.98808649281425 6.88027215322129 2499708.755269011 1.44343027213577 166.651918785468 22.8846875983969 -16.2537736400358 264714.268335416 T 160 CATAB v2.0c-linF95 2015-Dec-09 11:42:02 2015-Dec-09 11:42
2183-Oct-17 13:11 00:28 Mars 0.0190260677775143 0.0189841020390774 0.0190684964712623 6.57918353852217 6.57689604090099 2518674.049308899 27.6986890539161 4085.36940903769 41.1099934329783 65.8028441781615 50191.6174509625 T 160 CATAB v2.0c-linF95 2015-Dec-09 11:42:02 2015-Dec-09 11:42

Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 1994.3       1994 XIX   1993c 
 1988.7       1989 I   1987e1 
 1983.1       1983 XI   1982j 
 1977.5       1978 II   1977i 
 1971.9   9P/1972 A1   1972 V   1972a 
 1966.4   9P/1967 L1   1966 VII   
 1877.0       1879 III   1879b 
 1871.5   9P/1873 G1   1873 I   1873a 
 1865.9   9P/1867 G1   1867 II   
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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