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10P/Tempel 2
Classification: Jupiter-family Comet          SPK-ID: 1000094
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbit Diagram
Note: Make sure you have Java enabled on your browser to see the applet. This applet is provided as a 3D orbit visualization tool. The applet was implemented using 2-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances. For accurate long-term ephemerides, please instead use our Horizons system.

Note: If the applet has stopped working because of a recent Java upgrade, here is a possible workaround.
Orbit Viewer

Additional Notes: the orbits shown in the applet are color coded. The planets are white lines, and the asteroid/comet is a blue line. The bright white line indicates the portion of the orbit that is above the ecliptic plane, and the darker portion is below the ecliptic plane. Likewise for the asteroid/comet orbit, the light blue indicates the portion above the ecliptic plane, and the dark blue the portion below the ecliptic plane.

Orbit Viewer applet originally written and kindly provided by Osamu Ajiki (AstroArts), and further modified by Ron Baalke (JPL).

Orbital Elements at Epoch 2457262.5 (2015-Aug-28.0) TDB
Reference: JPL K1013/12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5373524008962 3.2642e-08  
a 3.064200979961858 5.7786e-08 au
q 1.417645226550865 8.9137e-08 au
i 12.02891385885155 3.4043e-06 deg
node 117.8053884339254 2.3515e-05 deg
peri 195.5476728978316 2.4163e-05 deg
M 345.6199434171522 5.4191e-06 deg
tp 2457340.758657186298
3.0928e-05 JED
period 1959.179814401525
n .1837503619390698 5.1979e-09 deg/d
Q 4.710756733372852 8.8838e-08 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] 3.828866589520615E-10 6.853E-12
A2 [EST] -3.614459204939829E-11 1.025E-12
A3 [EST] -7.989121955051499E-11 9.141E-12
DT [EST] 42.31063600434584 1.469
  Orbit Determination Parameters
   # obs. used (total)      3847  
   data-arc span      25274 days (69.20 yr)  
   first obs. used      1946-05-01  
   last obs. used      2015-07-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .70382  
   data source      ORB  
   producer      Ryan S. Park  
   solution date      2015-Aug-18 22:04:01  

Additional Information
 Earth MOID = .407031 au 
 T_jup = 2.964 
[ 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 11.3 mag 1. K1013/12 from 831 observations, assumed slope, autocmod 2.6
comet total magnitude slope K1 12.   n/a K1013/12 autocmod 2.6
comet nuclear magnitude M2 14.9 mag 0.7 K1013/12 from 2261 observations, autocmod 2.6
comet nuclear magnitude slope K2 5.   n/a K1013/12 autocmod 2.6
comet nuclear phase coefficient PC 0.03   n/a K1013/12 autocmod 2.6
diameter diameter 10.6 km n/a Lamy,P.L.;Toth,I.;Fernandez,Y.R.;Weaver,H.A. (2004) Comets II, pp. 223-264  
rotation period rot_per 8.950 h n/a LCDB (Rev. 2016-February); Warner et al., 2009 Published Reference List:
[A'Hearn, M.F.; Campins, H.; Schleicher, D.G.; Millis, R.L. (1989) Astrophys. J. 347, 1155-1166.]
[Jewitt, D.; Luu, J. (1989) Astron. J. 97, 1766-1790.]
[Wisniewski, W.Z. (1990) Icarus 86, 52-57.]
[Knight, M.M.; Schleicher, D.;G.; Farnham, T.L.; Schwieterman, E.W.; Christensen, S.R. (2012) Astron. J. 144, A153.]
geometric albedo albedo 0.022   0.006 Earth, Moon, and Planets, v. 89, Issue 1, p. 117-134 (2002) sigma is +0.004 and -0.006

10P/Tempel 2          Discovered 1873-Jul-03 by Tempel, William at Milan, Italy
Reference: comet.disLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1994.4       1994 VII   
 1989.0       1988 XIV   1987g 
 1983.7       1983 X   1982d 
 1978.3       1978 V   1977d 
 1973.0       1972 X   1972c 
 1967.6       1967 X   1967d 
 1962.2       1962 VI   1961b 
 1956.9       1957 II   1956e 
 1951.5       1951 VIII   1951d 
 1946.1       1946 III   1946b 
 1930.0       1930 VII   1930f 
 1924.7       1925 IV   1925d 
 1919.3       1920 II   1920a 
 1914.0       1915 I   1915c 
 1903.2       1904 III   1904c 
 1897.9       1899 IV   1899c 
 1892.5       1894 III   1894c 
 1876.4   10P/1878 O1   1878 III   1878b 
 1871.0   10P/1873 N1   1873 II   1873b 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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