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Table 1
A total of 60 HTCs from the JPL Small-Body Search Engine meet our HTC definition.
| a | e | i | q | T J | Year | Name |
| (AU) | (°) | (AU) | ||||
|
|
||||||
| 17.8 | 0.97 | 162.3 | 0.6 | –0.6 | 1758 | 1P/Halley |
| 5.7 | 0.82 | 55.0 | 1.0 | +1.6 | 1790 | 8P/Tuttle |
| 17.1 | 0.95 | 74.2 | 0.8 | +0.6 | 1812 | 12P/Pons-Brooks |
| 16.9 | 0.93 | 44.6 | 1.2 | +1.2 | 1815 | 13P/Olbers |
| 17.1 | 0.97 | 19.3 | 0.5 | +1.1 | 1847 | 23P/Brorsen-Metcalf |
| 9.2 | 0.92 | 29.0 | 0.7 | +1.5 | 1818 | 27P/Crommelin |
| 28.8 | 0.97 | 64.2 | 0.7 | +0.6 | 1788 | 35P/Herschel-Rigollet* |
| 11.2 | 0.86 | 18.0 | 1.6 | +1.9 | 1867 | 38P/Stephan-Oterma |
| 10.3 | 0.91 | 162.5 | 1.0 | –0.6 | 1866 | 55P/Tempel-Tuttle |
| 3.0 | 0.96 | 58.3 | 0.1 | +1.9 | 1986 | 96P/Machholz 1 |
| 26.1 | 0.96 | 113.5 | 1.0 | –0.3 | 1862 | 109P/Swift-Tuttle |
| 17.7 | 0.96 | 85.4 | 0.7 | +0.4 | 1846 | 122P/de Vico |
| 5.6 | 0.70 | 45.8 | 1.7 | +2.0 | 1983 | 126P/IRAS |
| 7.7 | 0.84 | 95.7 | 1.3 | +0.5 | 1984 | 161P/Hartley-IRAS |
| 24.3 | 0.95 | 31.2 | 1.1 | +1.3 | 1889 | 177P/Barnard |
| 6.9 | 0.82 | 29.1 | 1.3 | +1.9 | 1994 | 262P/McNaught-Russell |
| 32.8 | 0.98 | 136.4 | 0.8 | –0.6 | 1827 | 273P/Pons-Gambart* |
| 23.6 | 0.95 | 56.0 | 1.2 | +1.0 | 1906 | C/1906V1(Thiele)* |
| 27.6 | 0.99 | 32.7 | 0.2 | +0.6 | 1917 | C/1917F1(Mellish)* |
| 7.9 | 0.86 | 22.1 | 1.1 | +1.8 | 1921 | C/1921H1(Dubiago) |
| 32.7 | 0.98 | 26.0 | 0.6 | +1.0 | 1937 | C/1937D1(Wilk)* |
| 19.4 | 0.93 | 38.0 | 1.3 | +1.4 | 1942 | C/1942EA(Vaisala)* |
| 28.5 | 0.95 | 51.8 | 1.4 | +1.1 | 1984 | C/1984A1(Bradfield1) |
| 18.9 | 0.98 | 83.1 | 0.4 | +0.4 | 1989 | C/1989A3(Bradfield) |
| 13.8 | 0.93 | 19.2 | 1.0 | +1.5 | 1991 | C/1991L3(Levy) |
| 12.1 | 0.82 | 109.7 | 2.1 | –0.2 | 1998 | C/1998G1(LINEAR) |
| 23.0 | 0.92 | 28.1 | 1.7 | +1.6 | 1998 | C/1998Y1(LINEAR) |
| 16.3 | 0.76 | 46.9 | 3.9 | +1.9 | 1998 | C/1999E1(Li) |
| 28.1 | 0.86 | 76.6 | 4.0 | +0.7 | 1999 | C/1999G1(LINEAR) |
| 17.0 | 0.92 | 120.8 | 1.4 | –0.4 | 1999 | C/1999K4(LINEAR) |
| 18.9 | 0.90 | 70.6 | 1.9 | +0.8 | 1999 | C/1999S3(LINEAR) |
| 17.2 | 0.87 | 157.0 | 2.3 | –1.4 | 2000 | C/2000D2(LINEAR) |
| 14.0 | 0.81 | 170.5 | 2.7 | –1.5 | 2000 | C/2000G2(LINEAR) |
| 13.3 | 0.93 | 80.2 | 1.0 | +0.6 | 2001 | C/2001OG108(LONEOS) |
| 8.0 | 0.82 | 56.9 | 1.4 | +1.4 | 2001 | P/2001Q6(NEAT) |
| 17.9 | 0.94 | 115.9 | 1.1 | –0.3 | 2001 | C/2001W2(BATTERS) |
| 9.9 | 0.77 | 51.0 | 2.3 | +1.6 | 2001 | C/2002B1(LINEAR) |
| 9.8 | 0.79 | 145.5 | 2.0 | –0.9 | 2002 | C/2002CE10(LINEAR) |
| 17.5 | 0.84 | 94.1 | 2.8 | +0.2 | 2002 | C/2002K4(NEAT) |
| 20.7 | 0.81 | 70.2 | 4.0 | +1.1 | 2003 | C/2003F1(LINEAR) |
| 19.7 | 0.89 | 149.2 | 2.1 | –1.2 | 2003 | C/2003R1(LINEAR) |
| 22.9 | 0.92 | 164.5 | 1.8 | –1.3 | 2003 | C/2003U1(LINEAR) |
| 25.1 | 0.93 | 78.1 | 1.7 | +0.5 | 2003 | C/2003W1(LINEAR) |
| 28.7 | 0.94 | 21.4 | 1.6 | +1.6 | 2005 | C/2005N5(Catalina) |
| 23.7 | 0.86 | 148.9 | 3.3 | –1.6 | 2005 | C/2005O2(Christensen) |
| 9.3 | 0.93 | 160.0 | 0.6 | –0.4 | 2005 | P/2005T4(SWAN) |
| 7.8 | 0.84 | 31.9 | 1.2 | +1.8 | 2005 | P/2006HR30(SidingSpring) |
| 5.6 | 0.70 | 160.0 | 1.7 | –0.5 | 2006 | P/2006R1(SidingSpring) |
| 18.4 | 0.90 | 43.2 | 1.9 | +1.5 | 2008 | C/2008R3(LINEAR) |
| 6.7 | 0.45 | 57.2 | 3.7 | +1.9 | 2010 | P/2010D2(WISE) |
| 8.1 | 0.78 | 38.7 | 1.8 | +1.9 | 2010 | P/2010JC81(WISE) |
| 8.2 | 0.90 | 147.1 | 0.8 | –0.3 | 2010 | C/2010L5(WISE) |
| 19.6 | 0.93 | 114.7 | 1.5 | –0.3 | 2011 | C/2011J3(LINEAR) |
| 11.0 | 0.80 | 65.5 | 2.2 | +1.2 | 2011 | C/2011L1(McNaught) |
| 16.3 | 0.93 | 17.6 | 1.1 | +1.5 | 2011 | C/2011S2(Kowalski) |
| 16.1 | 0.89 | 92.8 | 1.7 | +0.2 | 2012 | C/2012H2(McNaught) |
| 8.5 | 0.85 | 84.4 | 1.3 | +0.7 | 2012 | P/2012NJ(LaSagra) |
| 14.4 | 0.88 | 33.3 | 1.8 | +1.7 | 2012 | C/2012T6(Kowalski) |
| 29.4 | 0.94 | 73.2 | 1.8 | +0.6 | 2012 | C/2012Y3(McNaught) |
| 6.5 | 0.68 | 144.9 | 2.0 | –0.5 | 2013 | P/2013AL76(Catalina) |
Notes. There are 6 comets (marked with *) that were discovered before 1950, but could not be seen again between 1950 and 2013 due to their orbital periods being longer than 63 years.
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