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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 2456717.5 (2014-Mar-01.0) TDB
Reference: JPL 158 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5115944387599365 1.0052e-08  
a 3.140094842040291 5.6708e-08 AU
q 1.533639783673717 4.7819e-08 AU
i 10.50258430337173 6.3363e-06 deg
node 68.88181348869867 8.715e-06 deg
peri 179.3031328527078 1.7828e-05 deg
M 203.237608505211 1.436e-05 deg
tp 2457602.517696170158
(2016-Aug-02.01769617)
0.000105 JED
period 2032.415859334781
5.56
5.5056e-05
1.507e-07
d
yr
n .177129103941272 4.7983e-09 deg/d
Q 4.746549900406865 8.572e-08 AU

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] 1.133478210303429E-10 1.56E-11
A2 [EST] 1.613059925982097E-11 1.452E-13
A3 [EST] 1.521767560165519E-10 1.832E-11
  Orbit Determination Parameters
   # obs. used (total)      9982  
   data-arc span      17041 days (46.66 yr)  
   first obs. used      1967-06-08  
   last obs. used      2014-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .40945  
   data source      ORB  
   producer      Ryan S. Park  
   solution date      2014-Feb-19 14:53:55  

Additional Information
 Earth MOID = .518931 AU 
 T_jup = 2.970 
[ 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
1924-Feb-15 08:21 < 00:01 David 0.017161524187698 0.017155189677362 0.0171678595608705 10.5460047339227 10.546004650451 2423830.848192121 0.679129924754464 490.323673055547 271.394548231508 66.6901049069477 8929.57986604193 T 158 CATAB v2.0c-linF95 2014-Feb-19 15:02:04 2014-Feb-19 15:02
1941-Oct-12 22:20 < 00:01 Jupiter 0.4122660441703 0.412258567009975 0.412273521248633 5.09079468534719 4.66980557948107 2430280.430713590 0.503548081407127 39.2101525087548 2.62067761153716 -4.26588161469369 181147.950819661 T 158 CATAB v2.0c-linF95 2014-Feb-19 15:02:04 2014-Feb-19 15:02
1953-Sep-12 00:56 00:01 Jupiter 0.758651144590294 0.758638319629384 0.758663969445021 6.03807288411527 5.85024396387992 2434632.538953366 1.23672647773871 80.5848529298064 9.34872809149359 5.1343623114179 174680.436299679 T 158 CATAB v2.0c-linF95 2014-Feb-19 15:02:04 2014-Feb-19 15:02
2024-May-26 13:02 < 00:01 Jupiter 0.550644367519142 0.550641190362662 0.550647544669836 5.28211025368614 4.98239010794066 2460457.043386559 0.554911743026577 17.0516338158422 3.94347742133054 -17.8331230234807 682651.63214753 T 158 CATAB v2.0c-linF95 2014-Feb-19 15:02:04 2014-Feb-19 15:02
2036-Apr-07 03:44 < 00:01 Jupiter 0.910662174203234 0.910653729154881 0.910670619186817 6.16903040284545 6.01636948581704 2464790.655513730 0.905231009798744 67.8141046898368 6.89698266574188 6.44665216598867 300366.443638328 T 158 CATAB v2.0c-linF95 2014-Feb-19 15:02:04 2014-Feb-19 15:02
2108-Jan-14 05:31 < 00:01 Jupiter 1.88624151901091 1.88622984222689 1.88625319575462 9.08632900212968 9.03677313125431 2491003.729782819 0.883028226979696 120.501707263761 32.452215675085 -7.47033844415579 389098.178319342 T 158 CATAB v2.0c-linF95 2014-Feb-19 15:02:04 2014-Feb-19 15:02
2119-Nov-28 22:44 00:02 Jupiter 0.497001521835747 0.496992386657967 0.497010656976164 4.86139215910955 4.49717720916348 2495340.447251995 1.94907048289012 38.6028489241624 9.03672092269859 -5.11796403595353 164255.540457255 T 158 CATAB v2.0c-linF95 2014-Feb-19 15:02:04 2014-Feb-19 15:02
2131-Nov-14 06:08 00:01 Jupiter 1.1329838140228 1.13296962391957 1.13299800401432 6.98809160969927 6.88027743688927 2499708.755400760 1.44863677218154 167.699741144124 22.6728988435847 -16.198508977222 265709.249510173 T 158 CATAB v2.0c-linF95 2014-Feb-19 15:02:04 2014-Feb-19 15:02
2183-Oct-17 13:10 00:28 Mars 0.0190256562983225 0.0189834129956302 0.0190683690506216 6.57917500954175 6.57688745947238 2518674.048340010 27.8904315093957 4113.5246021691 38.5663971040559 65.8080736144291 53502.8808258838 T 158 CATAB v2.0c-linF95 2014-Feb-19 15:02:04 2014-Feb-19 15:02

Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 1994.3       1994 XIX   1993c 
 1988.8       1989 I   1987e1 
 1983.2       1983 XI   1982j 
 1977.6       1978 II   1977i 
 1972.1   9P/1972 A1   1972 V   1972a 
 1966.5   9P/1967 L1   1966 VII   
 1877.5       1879 III   1879b 
 1871.9   9P/1873 G1   1873 I   1873a 
 1866.3   9P/1867 G1   1867 II   
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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