New, extended version of Table: Non-gravitational Oort spike comets (26 objects)
Reciprocals of semimajor axes are given in units of 10-6 AU-1
Nongravitational parameters A1, A2 and A3 are given in units 10-8 AU/day2
tau shift - time displacement of the maximum of the function g(r) relative to perihelion is given in days
Name | GR (1/a)ori | GR (1/a)osc epoch [TT] | GR 1/afut | RMSGR [arcsec] | NG (1/a)ori | NG (1/a)osc epoch [TT] | NG 1/afut | RMSNG [arcsec] | NG parameters A1 A2 A3 tau shift | |
1 | C/1885 X1 Fabry weighting | -2.73 ± 11.28 | -692.38 ± 11.51 1886 04 04 | -256.73 ± 11.28 | 3.92 | +61.04 ± 17.17 | -425.22 ± 36.10 1886 04 04 | -103.42 ± 41.33 | 3.58 | 2.3366 ± 0.2953 -0.2879 ± 0.1606 |
2 | C/1892 Q1 Brooks weighting | -57.34 ± 12.52 | -482.21 ± 12.66 1893 01 17 | -568.73 ± 12.52 | 3.20 | +58.07 ± 50.88 | -311.72 ± 26.18 1893 01 17 | -486.86 ± 23.28 | 2.80 | 2.7787 ± 0.4052 0.1994 ± 0.3855 |
3 | C/1913 Y1 Delavan weighting | 22.14 ± 1.30 | -146.67 ± 1.29 1914 11 04 | 56.41 ± 1.30 | 2.06 | +52.57 ± 4.23 | -87.08 ± 8.20 1914 11 04 | 86.84 ± 4.23 | 2.00 | 1.2401 ± 0.1723 |
4 | C/1940 R1 Cunningham weighting | -60.00 ± 17.66 | -1380.06 ± 17.69 1941 01 06 | -1630.62 ± 17.67 | 1.78 | +51.66 ± 17.30 | -1099.44 ± 29.06 1941 01 06 | -1494.22 ± 36.52 | 1.49 | 1.4258 ± 0.1553 -0.03924 ± 0.05983 |
5 | C/1946 U1 Bester weighting | 5.72 ± 4.97 | -386.73 ± 5.02 1947 02 24 | +32.53 ± 4.97 | 1.53 | +23.41 ± 5.25 | -358.23 ± 6.69 1947 02 24 | +52.21 ± 5.25 | 1.35 | 21.953 ± 4.618 |
6 | C/1952 W1 Mrkos weighting | -140.69 ± 21.69 | -456.98 ± 21.67 1953 01 23 | -298.66 ± 21.69 | 1.14 | -0.07 ± 85.78 | -68.64 ± 187.49 1953 01 23 | -41.39 ± 106.94 | 1.08 | 3.8399 ± 1.9048 -0.4885 ± 0.1811 |
7 | C/1956 R1 Arend-Roland weighting | -97.97 ± 5.46 | -790.89 ± 5.39 1956 10 14 | -603.51 ± 5.47 | 1.68 | +10.37 ± 11.42 | -682.34 ± 11.68 1956 10 14 | -579.69 ± 9.97 | 1.39 | 1.948 ± 0.139 0.1123 ± 0.0223 0.3729 ± 0.0873 |
7b | C/1956 R1 Arend-Roland non-weighting | -104.38 ± 5.02 | -797.31 ± 5.03 1956 10 14 | -609.98 ± 5.03 | 1.68 | +7.83 ± 11.19 | -684.89 ± 11.18 1956 10 14 | -587.32 ± 10.59 | 1.41 | 1.856 ± 0.151 0.1190 ± 0.0225 0.3710 ± 0.0926 |
8 | C/1959 Y1 Burnham weighting | -138.32 ± 15.93 | -592.78 ± 15.90 1960 03 07 | -589.97 ± 15.94 | 3.00 | +2.09 ± 123.88 | +445.88 ± 175.21 1960 03 07 | -286.65 ± 33.46 | 1.60 | 9.482 ± 1.244 1.276 ± 0.572 0.7251 ± 0.1979 -9.27 ± 1.55 |
9 | C/1978 H1 Meier weighting | +23.79 ± 2.42 | -748.17 ± 2.40 1978 11 28 | -1028.68 ± 2.42 | 1.04 | +80.55 ± 10.73 | -698.85 ± 8.55 1978 11 28 | -1025.19 ± 8.15 | 1.00 | 1.292 ± 0.198 0.4151 ± 0.1248 |
9b | C/1978 H1 Meier non-weighting | +24.52 ± 2.73 | -747.44 ± 2.76 1978 11 28 | -1027.96 ± 2.73 | 1.22 | +89.23 ± 12.83 | -685.36 ± 10.33 1978 11 28 | -1018.74 ± 8.09 | 1.18 | 1.592 ± 0.249 0.4325 ± 0.1356 |
10 | C/1986 P1 Wilson weighting | +9.53 ± 0.82 | -325.55 ± 0.83 1987 05 05 | 735.14 ± 0.82 | 1.35 | +42.00 ± 1.97 | -261.07 ± 2.63 1987 05 05 | 767.22 ± 2.35 | 1.11 | 1.7501 ± 0.0600 0.00335 ± 0.02714 |
10b | C/1986 P1 Wilson non-weighting | +0.44 ± 0.99 | -335.53 ± 0.99 1987 05 05 | 725.17 ± 0.99 | 1.62 | +42.33 ± 2.39 | -261.05 ± 3.04 1987 05 05 | 767.22 ± 2.86 | 1.31 | 1.7439 ± 0.0659 0.00625 ± 0.03285 |
11 | C/1989 Q1 Okazaki-Levy-Rudenko weighting | -12.14 ± 14.02 | -256.94 ± 13.88 1989 11 10 | 182.62 ± 14.02 | 1.84 | +42.90 ± 22.24 | -38.90 ± 25.92 1989 11 10 | +80.49 ± 27.32 | 1.30 | 3.396 ± 0.316 0.5059 ± 0.1493 |
11b | C/1989 Q1 Okazaki-Levy-Rudenko weighting | -6.47 ± 12.66 | -251.25 ± 12.83 1989 11 10 | 188.30 ± 12.66 | 1.86 | +54.58 ± 24.90 | -22.63 ± 30.72 1989 11 10 | +93.84 ± 33.52 | 1.46 | 3.451 ± 0.369 0.5006 ± 0.1783 |
12 | C/1989 X1 Austin weighting | +22.39 ± 2.07 | -652.36 ± 2.07 1990 04 19 | -365.62 ± 2.07 | 1.31 | +40.84 ± 9.89 | -617.28 ± 8.82 1990 04 19 | -368.96 ± 5.42 | 1.28 | 2.6749 ± 0.0729 0.03266 ± 0.02210 |
12b | C/1989 X1 Austin non-weighting | +22.40 ± 2.37 | -652.23 ± 2.33 1990 04 19 | -365.62 ± 2.37 | 1.49 | +41.71 ± 12.53 | -631.73 ± 10.39 1990 04 19 | -373.15 ± 6.77 | 1.49 | 1.7831 ± 0.0868 0.04025 ± 0.02773 |
13 | C/1990 K1 Levy weighting | +17.59 ± 1.70 | -622.39 ± 1.72 1990 11 05 | -857.12 ± 1.71 | 1.71 | +104.71 ± 5.72 | -436.59 ± 4.70 1990 11 05 | -787.37 ± 2.88 | 1.05 | 3.3077 ± 0.0896 0.09735 ± 0.04212 0.34667 ± 0.01289 |
13b | C/1990 K1 Levy non-weighting | +26.02 ± 1.65 | -613.95 ± 1.65 1990 11 05 | -848.67 ± 1.65 | 1.93 | +111.44 ± 6.92 | -433.65 ± 5.56 1990 11 05 | -790.43 ± 3.51 | 1.21 | 3.378 ± 0.106 0.1512 ± 0.0517 0.3334 ± 0.0147 |
14 | C/1991 F2 Helin-Lawrence weighting | +12.53 ± 1.79 | -286.86 ± 1.78 1992 01 19 | -116.77 ± 1.79 | 0.83 | +14.24 ± 4.03 | -268.47 ± 5.85 1992 01 19 | -93.14 ± 7.31 | 0.78 | 0.6557 ± 0.2299 -0.3401 ± 0.1337 0.07240 ± 0.03789 |
14b | C/1991 F2 Helin-Lawrence non-weighting | +14.64 ± 2.13 | -284.75 ± 2.15 1992 01 19 | -114.67 ± 2.13 | 0.89 | +24.90 ± 4.70 | -258.30 ± 8.62 1992 01 19 | -89.76 ± 12.25 | 0.86 | 1.001 ± 0.298 -0.2273 ± 0.2108 0.1071 ± 0.0576 |
15 | C/1993 A1 Mueller weighting | +11.26 ± 3.99 | -888.56 ± 4.04 1992 10 25 | -508.85 ± 3.99 | 2.42 | +62.66 ± 2.25 | -837.10 ± 2.25 1992 10 25 | -408.00 ± 2.42 | 0.98 | 16.197 ± 0.164 -2.063 ± 0.163 |
15b | C/1993 A1 Mueller non-weighting | -19.36 ± 3.88 | -919.21 ± 3.92 1992 10 25 | -539.43 ± 3.87 | 2.79 | +57.95 ± 2.74 | -841.81 ± 2.67 1992 10 25 | -406.83 ± 4.16 | 1.15 | 16.008 ± 0.189 -2.309 ± 0.230 |
16 | C/1993 Q1 Mueller weighting | +6.62 ± 2.04 | -283.61 ± 2.04 1994 03 29 | -62.43 ± 2.04 | 0.97 | +12.24 ± 6.15 | -231.90 ± 16.12 1994 03 29 | -408.00 ± 23.40 | 0.92 | 3.829 ± 0.336 0.8638 ± 0.1276 0.4546 ± 0.1860 |
16b | C/1993 Q1 Mueller non-weighting | -0.49 ± 3.25 | -290.74 ± 3.24 1994 03 29 | -69.55 ± 3.27 | 1.21 | -5.33 ± 8.70 | -265.27 ± 24.63 1994 03 29 | -222.77 ± 27.48 | 1.19 | 3.353 ± 0.523 0.8674 ± 0.2068 0.6136 ± 0.2813 |
17 | C/1996 E1 NEAT weighting | -36.48 ± 3.68 | -648.24 ± 3.68 1996 02 07 | +361.78 ± 3.67 | 0.93 | +30.15 ± 4.56 | -580.86 ± 4.57 1996 02 07 | +368.83 ± 5.44 | 0.60 | 6.688 ± 0.311 0.6882 ± 0.0935 |
17b | C/1996 E1 NEAT non-weighting | -43.35 ± 4.05 | -655.13 ± 4.04 1996 02 07 | +354.93 ± 4.04 | 1.01 | +18.42 ± 6.50 | -592.58 ± 6.49 1996 02 07 | +374.29 ± 7.89 | 0.77 | 6.901 ± 0.418 0.4909 ± 0.1393 |
18 | C/1997 BA6 Spacewatch weighting | +1.49 ± 0.35 | +305.38 ± 0.35 1999 12 08 | +371.77 ± 0.35 | 0.74 | +31.83 ± 1.15 | +342.47 ± 1.48 1999 12 08 | +402.48 ± 1.72 | 0.67 | 3340.8 ± 117.7 24.3 ± 54.1 -29.8 ± 11.7 |
18b | C/1997 BA6 Spacewatch non-weighting | -1.49 ± 0.46 | +303.47 ± 0.46 1999 12 08 | +369.86 ± 0.46 | 1.17 | +38.42 ± 1.68 | +347.67 ± 1.67 1999 12 08 | +405.01 ± 1.62 | 0.89 | 3800.7 ± 139.6 166.7 ± 59.9 -40.7 ± 15.4 |
19 | C/1997 J2 Meunier-Dupouy weighting | +38.83 ± 0.57 | -201.82 ± 0.56 1998 03 08 | -2.72 ± 0.57 | 0.67 | +44.64 ± 0.88 | -185.70 ± 0.59 1998 03 08 | +14.72 ± 0.91 | 0.53 | 292.74 ± 6.92 -50.39 ± 6.35 |
19b | C/1997 J2 Meunier-Dupouy non-weighting | +36.86 ± 0.57 | -203.80 ± 0.57 1998 03 08 | -4.69 ± 0.57 | 0.74 | +45.81 ± 1.03 | -184.69 ± 0.68 1998 03 08 | +15.52 ± 1.00 | 0.60 | 293.41 ± 7.65 -48.74 ± 7.12 |
20 | C/1999 Y1 LINEAR weighting | +42.92 ± 0.88 | -196.65 ± 0.88 2001 04 01 | +350.42 ± 0.88 | 0.61 | +47.35 ± 0.94 | -193.42 ± 0.86 2001 04 01 | +345.69 ± 1.46 | 0.48 | 296.5 ± 7.6 48.86 ± 10.45 5.305 ± 3.401 |
20b | C/1999 Y1 LINEAR non-weighting | +19.44 ± 0.78 | -220.17 ± 0.78 2001 04 01 | +326.90 ± 0.78 | 0.92 | +49.40 ± 1.58 | -194.33 ± 1.24 2001 04 01 | +342.34 ± 1.95 | 0.76 | 294.6 ± 11.5 77.70 ± 15.40 5.593 ± 4.570 |
21 | C/2000 SV74 LINEAR weighting | +50.23 ± 0.40 | -196.65 ± 0.40 2002 05 06 | -1397.07 ± 0.40 | 1.11 | +92.31 ± 0.85 | -1354.82 ± 0.62 2002 05 06 | -54.88 ± 0.60 | 0.71 | 6121 ± 80 717.9 ± 60.7 -513.6 ± 21.7 |
21b | C/2000 SV74 LINEAR non-weighting | +46.66 ± 0.39 | -1400.64 ± 0.39 2002 05 06 | -89.12 ± 0.39 | 1.23 | +94.77 ± 1.18 | -1356.79 ± 0.85 2002 05 06 | -60.83 ± 0.75 | 0.94 | 6102 ± 110 1247.0 ± 79.4 -327.4 ± 28.5 |
22 | C/2001 Q4 NEAT weighting | +12.51 ± 0.43 | -631.42 ± 0.42 2001 07 30 | -731.74 ± 0.43 | 1.29 | +60.87 ± 0.48 | -582.97 ± 0.48 2001 07 30 | -696.62 ± 0.48 | 0.63 | 1.6229 ± 0.0143 0.07695 ± 0.00637 -0.00909 ± 0.00533 |
22b | C/2001 Q4 NEAT non-weighting | +5.80 ± 0.44 | -638.13 ± 0.44 2001 07 30 | -738.46 ± 0.44 | 1.69 | +59.59 ± 0.70 | -584.25 ± 0.70 2001 07 30 | -696.74 ± 0.64 | 0.80 | 1.5763 ± 0.0123 0.07022 ± 0.00604 0.02159 ± 0.00492 |
23 | C/2002 E2 Snyder-Murakami weighting | +42.95 ± 2.31 | -566.91 ± 2.26 2002 02 15 | -425.73 ± 2.31 | 0.61 | +89.59 ± 12.39 | -520.32 ± 7.95 2002 02 15 | -441.69 ± 2.79 | 0.57 | 2.7802 ± 0.2322 0.8789 ± 0.1940 |
23b | C/2002 E2 Snyder-Murakami non-weighting | +38.11 ± 2.79 | -571.75 ± 2.79 2002 02 15 | -430.57 ± 2.79 | 0.77 | +75.00 ± 18.32 | -529.25 ± 11.71 2002 02 15 | -445.15 ± 3.80 | 0.75 | 2.8445 ± 0.3431 0.7228 ± 0.2878 |
24 | C/2002 T7 LINEAR weighting | -13.84 ± 0.16 | -692.45 ± 0.16 2002 09 03 | -653.57 ± 0.16 | 0.61 | +20.72 ± 0.39 | -657.85 ± 0.39 2002 09 03 | -660.08 ± 1.05 | 0.58 | 1.0077 ± 0.0147 0.12460 ± 0.00358 -0.17847 ± 0.00478 |
24b | C/2002 T7 LINEAR non-weighting | -24.42 ± 0.24 | -703.04 ± 0.24 2002 09 03 | -664.14 ± 0.24 | 1.21 | +19.73 ± 0.39 | -658.83 ± 0.40 2002 09 03 | -650.86 ± 1.03 | 0.64 | 1.1752 ± 0.0139 0.09362 ± 0.00363 -0.20478 ± 0.00428 |
25 | C/2003 K4 LINEAR weighting | +32.08 ± 0.16 | -423.17 ± 0.16 2003 05 01 | -186.23 ± 0.16 | 0.62 | +30.73 ± 0.54 | -424.53 ± 0.54 2003 05 01 | -126.41 ± 0.81 | 0.54 | 0.75404 ± 0.01878 -0.39375 ± 0.00615 -0.09744 ± 0.00473 |
25b | C/2003 K4 LINEAR non-weighting | +40.36 ± 0.17 | -414.88 ± 0.17 2003 05 01 | -177.95 ± 0.17 | 0.78 | +34.73 ± 0.63 | -420.52 ± 0.62 2003 05 01 | -130.71 ± 0.77 | 0.63 | 0.75596 ± 0.02009 -0.34021 ± 0.00626 -0.07501 ± 0.00452 |
26 | C/2004 B1 LINEAR weighting | +34.64 ± 0.20 | -808.68 ± 0.19 2006 01 25 | -481.63 ± 0.20 | 0.53 | +35.55 ± 0.72 | -793.27 ± 0.70 2006 01 25 | -460.98 ± 0.68 | 0.43 | 0.91312 ± 0.03339 -0.35032 ± 0.01775 -0.23725 ± 0.00683 |
26b | C/2004 B1 LINEAR non-weighting | +34.66 ± 0.22 | -808.53 ± 0.22 2006 01 25 | -481.61 ± 0.22 | 0.68 | +38.01 ± 0.81 | -790.86 ± 0.87 2006 01 25 | -460.07 ± 0.81 | 0.58 | 1.0005 ± 0.0430 -0.33538 ± 0.02127 -0.20151 ± 0.00767 |