OAA computing section circular NK 548 Periodic Comet Schwassmann-Wachmann 1

The following improved orbital elements, by S. Nakano, are from 661 observations 1902 to 1991, including full planetary and five minor planets perturbations. The mean residual is +/- 1.12 arc seconds. Epoch = 1989 Nov. 10.0 ET T = 1989 Oct. 26.72383 +/- 0.00335 (m.e.) ET Peri. = 49.89738 +/- 0.00026 Node = 312.12258 +/- 0.00009 (1950.0) Inc. = 9.36736 +/- 0.00002 q = 5.7717642 +/- 0.0000006 AU e = 0.0446611 +/- 0.0000001 a = 6.0415884 +/- 0.0000005 AU nß = 0.06637085 +/- 0.00000001 P = 14.850 +/- 0.0000019 years T = 1908 Oct. 18.70721 ET Epoch = 1908 Oct. 26.0 ET Peri. = 357.09785 e = 0.1498887 Node = 323.62349 (1950.0) a = 6.4642828 AU Inc. = 9.41668 nß= 0.05996855 q = 5.4953597 AU P = 16.435 years T = 1925 May 7.84568 ET Epoch = 1925 May 10.0 ET Peri. = 359.10961 e = 0.1531802 Node = 323.05353 (1950.0) a = 6.4653331 AU Inc. = 9.43472 nß= 0.05995394 q = 5.4749721 AU P = 16.439 years T = 1941 Apr. 21.61400 ET Epoch = 1941 May 6.0 ET Peri. = 356.25021 e = 0.1352076 Node = 322.00186 (1950.0) a = 6.3863379 AU Inc. = 9.51801 nß= 0.06106976 q = 5.5228568 AU P = 16.139 years T = 1957 May 12.85906 ET Epoch = 1957 May 2.0 ET Peri. = 355.82746 e = 0.1314994 Node = 321.60807 (1950.0) a = 6.3761304 AU Inc. = 9.48712 nß= 0.06121647 q = 5.5376733 AU P = 16.100 years T = 1974 Feb. 15.32825 ET Epoch = 1974 Feb. 2.0 ET Peri. = 14.46812 e = 0.1054284 Node = 319.63624 (1950.0) a = 6.0898987 AU Inc. = 9.74688 nß= 0.06558265 q = 5.4478505 AU P = 15.028 years The predicted orbit for the 2004 return is as follows: T = 2004 July 10.82976 ET Epoch = 2004 July 14.0 ET Peri. = 48.98366 e = 0.0441708 Node = 311.99020 (1950.0) a = 5.9880711 AU Inc. = 9.38731 nß= 0.06726260 q = 5.7235731 AU P = 14.653 years - continued - P/Schwassmann-Wachmann 1 NK 548 - 2 The following residuals in seconds of arc are from the above orbital elements: Date/ UT R.A. (1950) Decl. *** O-C *** Code/Obs h m s ¡ , " " " 1902 03 04.93049 11 07 04.82 +00 57 58.9 ( 2.4+ 4.5+) 024/HE 1902 03 05.90161 11 06 41.42 +00 59 48.5 2.3- 1.6+ 024/HE 1902 03 05.93209 11 06 40.92 +00 59 52.7 1.2+ 2.3+ 024/HE 1902 03 05.96237 11 06 40.12 +00 59 57.5 ( 0.2+ 3.5+) 024/HE 1927 11 15.89833 01 33 29.53 +21 01 45.7 ( 3.8- 3.4-) 029/HM 1927 11 18.85056 01 32 25.95 +20 53 51.5 0.1- 2.4- 029/HM 1927 11 22.71708 01 31 09.14 +20 43 41.5 ( 3.2+ 2.5+) 029/HM 1927 11 22.76931 01 31 08.64 +20 43 30.5 (10.3+ 0.4-) 029/HM 1927 12 28.83815 01 26 35.08 +19 32 39.8 1.1+ 0.3- 029/HM 1928 02 12.05126 01 40 25.33 +19 47 55.6 0.5+ 2.1- 754/YK 1928 02 13.04803 01 40 55.86 +19 49 37.3 1.0+ 0.6+ 754/YK 1928 10 14.05381 03 45 13.48 +30 52 53.6 0.8- 0.8- 029/HM 1931 12 12.33663 08 21 07.66 +24 13 10.9 1.9- 0.3- 754/YK 1931 12 12.37898 08 21 06.93 +24 13 13.1 2.2- 0.3- 754/YK 1931 12 15.34056 08 20 16.36 +24 15 52.9 2.3- 0.6- 754/YK 1932 02 05.90319 07 58 04.95 +25 01 41.0 ( 0.8+ 3.0-) 029/HM 1932 02 06.02201 07 58 01.74 +25 01 45.0 0.8- 2.0- 029/HM 1937 05 06.23030 13 44 17.27 -22 14 19.6 1.1- 0.3- 754/YK 1939 06 12.849 17 43.2 -33 02 ( 8.8- 37.9-) 078/JO X 1940 10 02.16222 19 38 03.03 -25 01 09.6 0.7- 0.5- 662/LI 1940 10 02.21917 19 38 03.61 -25 01 02.4 0.2- 0.5+ 662/LI 1941 09 11.03506 21 49 39.18 -11 30 36.1 (14.8- 1.5+) 801/HO 1941 09 12.10230 21 49 14.59 -11 31 59.6 ( 1.5+ 3.7-) 754/YK 1941 09 12.1560 21 49 13.19 -11 31 56.3 ( 0.5+ 3.4+) 786/WS 1941 09 14.0651 21 48 28.31 -11 34 15.0 2.0- 0.4- 801/HO 1941 09 14.08663 21 48 27.91 -11 34 13.0 0.2- 0.9+ 822/CO 1941 09 15.05755 21 48 05.75 -11 35 18.9 0.6- 0.9+ 822/CO 1941 09 15.14072 21 48 03.91 -11 35 27.8 0.6+ 0.2- 801/HO 1941 09 16.07134 21 47 43.12 -11 36 26.1 0.4+ 0.6+ 822/CO 1941 09 17.09694 21 47 20.63 -11 37 30.8 0.3+ 1.5+ 822/CO 1941 09 18.14873 21 46 58.12 -11 38 38.2 0.6+ 1.2+ 801/HO 1941 09 24.16936 21 45 00.23 -11 44 01.7 0.6- 1.1+ 662/LI 1941 09 24.17839 21 45 00.03 -11 44 01.9 1.0- 1.4+ 662/LI 1944 08 17.41369 03 29 37.83 +28 48 43.7 0.9- 0.9- 662/LI 1944 08 17.42581 03 29 38.02 +28 48 45.4 0.9- 1.0- 662/LI 1944 10 20.26008 03 24 02.16 +30 03 44.6 0.5+ 0.3- 662/LI 1944 10 20.27439 03 24 01.81 +30 03 44.5 0.6+ 0.0 662/LI 1945 09 09.45503 05 13 31.37 +32 04 06.8 0.7- 0.4+ 662/LI 1945 09 09.50087 05 13 32.14 +32 04 10.9 0.6- 0.5+ 662/LI 1945 10 04.49172 05 17 07.76 +32 37 04.7 0.9+ 0.3+ 662/LI 1945 10 04.53061 05 17 07.66 +32 37 08.7 0.1- 1.5+ 662/LI 1945 11 13.50044 05 07 51.14 +33 04 43.8 0.9- 1.2- 662/LI 1945 11 13.54627 05 07 49.86 +33 04 43.7 1.8- 1.3- 662/LI 1946 01 25.19896 04 36 51.29 +31 34 25.6 0.9- 0.9+ 662/LI 1946 01 25.23785 04 36 50.90 +31 34 21.5 0.6- 1.0+ 662/LI 1946 02 01.19502 04 35 56.96 +31 22 00.6 0.6+ 0.5+ 662/LI 1946 02 01.24016 04 35 56.74 +31 21 55.9 1.1+ 0.5+ 662/LI 1946 03 01.17053 04 38 05.36 +30 41 48.6 0.4+ 0.4- 662/LI 1946 03 01.21498 04 38 05.97 +30 41 46.0 0.4+ 0.1+ 662/LI 1946 10 05.40764 06 49 56.45 +30 20 36.0 0.3- 1.0+ 662/LI - continued - P/Schwassmann-Wachmann 1 NK 548 - 3 Date/ UT R.A. (1950) Decl. *** O-C *** Code/Obs. h m s ¡ , " " " 1946 10 05.44097 06 49 56.90 +30 20 37.4 0.0 1.4+ 662/LI 1946 10 24.42483 06 52 08.32 +30 31 52.3 0.4+ 0.3- 662/LI 1946 10 25.37159 06 52 08.60 +30 32 33.4 1.3+ 0.7+ 662/LI 1946 11 27.28329 06 46 01.10 +30 57 53.5 0.5- 2.0+ 662/LI 1946 11 27.33606 06 46 00.08 +30 57 55.2 1.2+ 1.4+ 662/LI 1946 12 20.30503 06 35 55.69 +31 08 59.7 0.0 0.2+ 662/LI 1946 12 20.35156 06 35 54.35 +31 09 00.3 0.9+ 0.2+ 662/LI 1947 03 12.27424 06 11 14.98 +30 00 45.9 1.6+ 0.6+ 662/LI 1947 03 14.31123 06 11 27.58 +29 57 59.7 1.4+ 0.2+ 662/LI 1947 04 11.23234 06 18 37.21 +29 20 42.8 0.6+ 0.2- 662/LI 1947 04 11.28720 06 18 38.47 +29 20 38.1 0.6+ 0.4- 662/LI 1947 11 12.45694 08 14 06.76 +24 58 31.2 1.7+ 1.8+ 662/LI 1947 11 12.52847 08 14 06.74 +24 58 32.2 1.8+ 1.7+ 662/LI 1947 11 22.47454 08 13 36.75 +25 02 18.9 2.4+ 0.7+ 662/LI 1947 11 22.53495 08 13 36.28 +25 02 20.6 1.5+ 0.5+ 662/LI 1947 12 19.47190 08 07 15.07 +25 23 35.3 2.5+ 1.1+ 662/LI 1947 12 19.51843 08 07 14.00 +25 23 37.4 1.8+ 0.5+ 662/LI 1948 01 14.25847 07 56 11.50 +25 47 41.2 1.2+ 0.8- 662/LI 1948 01 14.30361 07 56 10.15 +25 47 43.8 0.5+ 0.4- 662/LI 1948 02 17.25538 07 41 22.04 +26 00 40.4 0.2- 0.1- 662/LI 1948 03 04.27472 07 36 54.81 +25 55 26.3 2.1+ 0.1+ 662/LI 1948 03 04.31570 07 36 54.35 +25 55 24.9 ( 2.9+ 0.1+) 662/LI 1948 11 09.44623 09 23 18.85 +17 27 18.6 1.5+ 1.2+ 662/LI 1948 11 09.48238 09 23 19.17 +17 27 16.3 0.6+ 1.0+ 662/LI 1948 11 29.43616 09 25 06.75 +17 14 47.2 1.7+ 1.3+ 662/LI 1948 11 30.46171 09 25 06.14 +17 14 35.5 1.7+ 1.0+ 662/LI 1948 12 29.39777 09 20 43.44 +17 26 33.3 0.1+ 1.1+ 662/LI 1948 12 29.44221 09 20 42.65 +17 26 35.9 0.2- 1.2+ 662/LI 1949 01 27.38536 09 09 58.20 +18 01 59.1 0.3- 0.2+ 662/LI 1949 01 27.42966 09 09 56.96 +18 02 02.3 1.3- 0.2- 662/LI 1949 03 29.28498 08 49 11.43 +18 50 04.5 0.0 0.1+ 662/LI 1949 03 29.32595 08 49 11.05 +18 50 04.2 0.7- 0.3+ 662/LI 1949 05 01.25868 08 50 02.91 +18 26 00.6 0.4+ 0.4+ 662/LI 1949 11 30.49620 10 28 41.24 +08 27 40.9 0.0 0.9+ 662/LI 1949 11 30.54620 10 28 41.66 +08 27 36.3 0.4+ 0.7+ 662/LI 1950 03 09.24479 10 05 44.19 +09 32 14.5 0.4+ 0.9+ 662/LI 1950 03 09.28924 10 05 43.14 +09 32 19.2 0.3+ 1.2+ 662/LI 1950 05 19.20932 09 56 29.18 +10 03 10.5 0.9+ 1.1+ 662/LI 1950 05 19.25723 09 56 29.68 +10 03 07.3 1.2+ 1.0+ 662/LI 1951 02 09.40547 11 27 05.13 -01 47 56.7 0.4+ 1.1+ 662/LI 1951 02 09.44992 11 27 04.33 -01 47 54.2 1.1+ 1.0+ 662/LI 1951 04 06.30972 11 06 04.54 -00 06 50.7 1.0+ 0.1+ 662/LI 1951 04 06.35417 11 06 03.60 -00 06 45.1 0.1+ 0.5+ 662/LI 1953 07 04.22953 13 25 59.86 -19 25 54.4 1.9+ 0.2+ 662/LI 1953 07 04.26980 13 26 00.02 -19 25 52.0 0.7+ 0.7+ 662/LI 1954 03 04.49956 15 42 53.57 -29 56 40.6 0.3+ 1.1+ 662/LI 1954 03 04.54400 15 42 53.81 -29 56 46.7 0.3- 0.4+ 662/LI 1954 04 29.31907 15 31 40.31 -30 37 47.5 0.2- 0.7- 662/LI 1954 04 29.36699 15 31 39.01 -30 37 44.9 0.4+ 0.3- 662/LI 1955 05 25.35480 17 40 40.62 -33 09 38.8 1.2- 1.4+ 662/LI - continued - P/Schwassmann-Wachmann 1 NK 548 - 4 Date/ UT R.A. (1950) Decl. *** O-C *** Code/Obs. h m s ¡ , " " " 1955 05 25.39994 17 40 39.40 -33 09 39.4 0.5- 1.1+ 662/LI 1955 07 12.25009 17 16 33.31 -32 27 50.5 ( 2.8- 2.0-) 662/LI 1955 07 12.29870 17 16 32.17 -32 27 44.7 1.7- 1.2- 662/LI 1955 08 11.22552 17 09 10.11 -31 31 35.2 1.9+ 1.0+ 662/LI 1956 07 12.29392 19 48 53.16 -26 41 32.3 0.2+ 1.5+ 662/LI 1956 07 12.32448 19 48 52.13 -26 41 33.7 0.6- 1.2+ 662/LI 1956 08 03.28490 19 37 38.91 -26 46 15.5 1.2+ 1.0+ 662/LI 1956 08 03.32656 19 37 37.61 -26 46 14.8 0.0 1.3+ 662/LI 1957 07 21.38968 22 01 21.44 -11 48 56.6 1.2- 0.7+ 689/FS 1957 07 21.44093 22 01 20.28 -11 48 59.8 1.6- 0.2+ 689/FS 1957 08 21.31544 21 47 44.58 -12 28 44.7 1.4- 0.3- 662/LI 1957 08 21.36266 21 47 43.16 -12 28 48.7 1.9- 0.2- 662/LI 1957 08 31.21189 21 43 07.63 -12 42 37.1 1.2- 1.2+ 689/FS 1957 08 31.24721 21 43 06.65 -12 42 40.0 1.3- 1.1+ 689/FS 1957 08 31.25448 21 43 06.46 -12 42 40.6 1.1- 1.1+ 689/FS 1957 09 01.27181 21 42 39.10 -12 44 01.3 0.5- 1.1+ 689/FS 1957 09 01.27907 21 42 38.93 -12 44 02.4 0.1- 0.5+ 689/FS 1957 09 01.28842 21 42 38.60 -12 44 02.7 1.2- 1.0+ 689/FS 1957 09 04.34558 21 41 17.97 -12 47 57.2 2.2- 0.7+ 689/FS 1957 09 04.37051 21 41 17.32 -12 47 59.2 2.1- 0.5+ 689/FS 1957 09 04.39128 21 41 16.74 -12 48 00.3 2.6- 1.0+ 689/FS 1957 09 15.17469 21 37 00.28 -12 59 44.9 2.2- 0.7+ 689/FS 1957 09 15.19892 21 36 59.70 -12 59 46.0 ( 2.8- 1.0+) 689/FS 1957 09 15.21763 21 36 59.35 -12 59 47.2 1.9- 0.8+ 689/FS 1957 09 19.16364 21 35 38.68 -13 03 06.3 ( 3.0- 1.1+) 689/FS 1957 09 19.20036 21 35 37.87 -13 03 07.9 ( 4.1- 1.2+) 689/FS 1957 09 19.26580 21 35 36.61 -13 03 11.2 ( 3.3- 0.9+) 689/FS 1957 09 24.25565 21 34 07.25 -13 06 28.8 1.1- 1.4+ 662/LI 1957 09 24.30079 21 34 06.42 -13 06 29.9 1.9- 1.8+ 662/LI 1957 11 11.07652 21 33 52.12 -12 37 09.1 0.6- 0.4+ 689/FS 1957 11 11.11668 21 33 52.72 -12 37 04.1 0.9- 0.9+ 689/FS 1957 12 11.07632 21 46 14.30 -11 20 15.0 0.6- 0.2+ 689/FS 1957 12 11.09294 21 46 14.83 -11 20 11.6 0.6- 0.3+ 689/FS 1957 12 11.13172 21 46 16.08 -11 20 04.8 0.5- 0.5- 689/FS 1958 06 25.38385 23 52 32.97 +04 12 29.9 1.0- 1.8+ 689/FS 1958 06 26.36933 23 52 45.04 +04 15 22.7 0.3- 1.0+ 689/FS 1958 07 11.33007 23 54 35.90 +04 52 17.3 0.8+ 1.3+ 689/FS 1958 07 11.34530 23 54 36.02 +04 52 19.9 2.0+ 2.1+ 689/FS 1958 08 21.35362 23 47 54.41 +05 17 00.3 0.1- 0.2+ 662/LI 1958 08 21.39668 23 47 53.45 +05 16 59.2 0.5- 1.2+ 662/LI 1958 09 06.23426 23 41 35.05 +04 56 59.1 0.9+ 0.4+ 689/FS 1958 09 15.35330 23 37 30.58 +04 39 58.7 0.4- 1.0+ 689/FS 1958 09 15.38862 23 37 29.61 +04 39 53.8 0.2- 0.5+ 689/FS 1958 10 07.17288 23 28 02.66 +03 51 37.3 0.2+ 0.6+ 689/FS 1958 10 13.17082 23 25 48.65 +03 38 23.5 1.3+ 1.0+ 689/FS 1958 10 13.21860 23 25 47.56 +03 38 16.7 0.5+ 0.4+ 689/FS 1958 11 04.24302 23 20 11.09 +02 59 13.3 0.5+ 0.7+ 662/LI 1958 11 04.28677 23 20 10.69 +02 59 09.3 0.6+ 0.0 662/LI 1958 11 09.23692 23 19 35.13 +02 53 28.4 1.7- 0.1- 689/FS 1958 11 09.27155 23 19 34.93 +02 53 26.4 1.6- 0.0 689/FS - continued - P/Schwassmann-Wachmann 1 NK 548 - 5 Date/ UT R.A. (1950) Decl. *** O-C *** Code/Obs h m s ¡ , " " " 1958 12 02.19492 23 20 23.57 +02 46 45.8 1.1+ 0.5- 689/FS 1958 12 02.21811 23 20 23.74 +02 46 48.0 0.4+ 1.1+ 689/FS 1958 12 03.06888 23 20 32.21 +02 47 11.4 0.0 0.2- 689/FS 1958 12 03.09277 23 20 32.43 +02 47 11.6 0.1- 0.8- 689/FS 1958 12 04.06749 23 20 42.69 +02 47 44.4 0.1+ 0.1+ 689/FS 1958 12 04.08169 23 20 42.85 +02 47 44.3 0.3+ 0.5- 689/FS 1958 12 04.12635 23 20 43.31 +02 47 45.9 0.4+ 0.5- 689/FS 1958 12 05.07373 23 20 53.90 +02 48 22.4 0.5+ 1.1+ 689/FS 1958 12 05.08792 23 20 54.07 +02 48 22.5 0.8+ 0.7+ 689/FS 1958 12 05.13362 23 20 54.62 +02 48 22.9 1.5+ 0.7- 689/FS 1958 12 08.17999 23 21 32.26 +02 50 41.7 1.1- 0.9+ 689/FS 1958 12 10.06779 23 21 58.72 +02 52 25.2 0.2+ 0.8+ 689/FS 1958 12 10.08372 23 21 58.93 +02 52 25.8 0.0 0.5+ 689/FS 1958 12 10.12977 23 21 59.64 +02 52 29.1 0.9+ 1.1+ 689/FS 1958 12 11.11524 23 22 14.30 +02 53 28.9 1.1+ 0.9+ 689/FS 1958 12 11.14364 23 22 14.71 +02 53 30.7 1.0+ 0.9+ 689/FS 1958 12 16.12938 23 23 37.69 +02 59 33.7 0.5+ 1.1+ 689/FS 1958 12 16.16124 23 23 38.26 +02 59 35.9 0.6+ 0.7+ 689/FS 1959 01 12.12824 23 34 55.00 +03 59 01.6 0.7+ 0.4+ 689/FS 1959 08 07.43925 01 37 00.16 +19 18 10.8 0.2- 0.1+ 662/LI 1959 08 07.48233 01 37 00.32 +19 18 16.8 0.2+ 0.3+ 662/LI 1959 08 29.38406 01 35 43.86 +19 52 40.5 0.4+ 0.4+ 689/FS 1959 09 25.28434 01 27 39.05 +19 49 51.1 0.9+ 0.5+ 689/FS 1959 10 21.16252 01 16 02.66 +19 02 55.1 1.1+ 0.3- 689/FS 1959 10 26.18532 01 13 46.45 +18 50 22.9 0.5- 0.3+ 689/FS 1959 10 26.19883 01 13 46.10 +18 50 20.8 0.2- 0.3+ 689/FS 1959 10 26.22618 01 13 45.32 +18 50 16.8 0.7- 0.5+ 689/FS 1959 10 27.22122 01 13 18.86 +18 47 42.5 1.8- 0.2+ 662/LI 1959 10 27.30039 01 13 16.82 +18 47 30.6 0.4- 0.6+ 662/LI 1959 11 28.15944 01 02 37.78 +17 25 21.9 2.2+ 1.0+ 689/FS 1959 12 30.10570 01 02 01.71 +16 40 34.0 1.3+ 0.7+ 689/FS 1960 01 29.12030 01 11 11.64 +16 56 13.2 0.9+ 0.0 689/FS 1960 01 29.14730 01 11 12.33 +16 56 16.0 0.7+ 0.5+ 689/FS 1960 02 21.11505 01 23 13.49 +17 43 10.3 1.0- 0.7+ 689/FS 1960 02 21.13998 01 23 14.34 +17 43 13.5 1.5- 0.1+ 689/FS 1960 10 02.48578 03 18 16.19 +29 21 58.0 0.4+ 0.3+ 689/FS 1960 10 25.22760 03 09 41.36 +29 15 24.6 0.7+ 1.2+ 689/FS 1960 11 11.21816 03 01 27.17 +28 50 42.9 0.4+ 0.4- 689/FS 1961 01 11.21619 02 42 51.41 +26 33 12.6 0.6+ 0.2- 689/FS 1961 02 15.15610 02 49 40.57 +26 05 10.5 2.1+ 0.1+ 689/FS 1961 03 09.14705 02 59 57.38 +26 16 56.6 1.1+ 0.4- 689/FS 1961 10 02.37229 05 05 56.87 +32 29 38.5 1.9- 0.3+ 689/FS 1961 10 12.45807 05 05 17.07 +32 40 41.9 1.4- 0.4+ 689/FS 1961 10 15.42186 05 04 51.31 +32 43 31.7 ( 3.5- 2.3+) 689/FS 1961 10 15.43610 05 04 51.21 +32 43 32.5 ( 2.9- 2.3+) 689/FS 1961 10 18.31308 05 04 20.53 +32 46 01.2 2.3- 1.7+ 689/FS 1961 10 18.31898 05 04 20.52 +32 46 00.9 1.5- 1.1+ 689/FS 1961 10 18.33565 05 04 20.36 +32 46 02.1 1.0- 1.4+ 689/FS 1961 11 03.44238 04 59 46.71 +32 55 10.2 2.6- 0.9+ 689/FS 1961 11 03.46669 04 59 46.25 +32 55 10.0 1.5- 0.3+ 689/FS - continued - P/Schwassmann-Wachmann 1 NK 548 - 6 Date/ UT R.A. (1950) Decl. *** O-C *** Code/Obs. h m s ¡ , " " " 1961 11 10.34874 04 57 03.02 +32 56 08.5 1.6- 0.8+ 689/FS 1961 12 04.42381 04 45 19.59 +32 43 17.7 1.2- 0.7+ 689/FS 1961 12 29.19118 04 33 20.04 +32 06 25.1 0.1+ 1.2+ 689/FS 1962 01 28.16626 04 25 12.61 +31 10 05.0 1.2- 1.7+ 689/FS 1962 03 04.20610 04 28 40.89 +30 22 07.7 1.3+ 1.1+ 689/FS 1962 09 26.42367 06 37 51.33 +30 37 11.6 0.0 0.2- 689/FS 1962 10 28.31810 06 41 38.36 +30 57 50.3 0.7- 0.2+ 689/FS 1962 11 21.47642 06 36 54.24 +31 16 30.7 0.8+ 0.5+ 689/FS 1962 12 21.16162 06 24 02.61 +31 28 32.3 0.5+ 0.8+ 689/FS 1963 01 18.27456 06 10 19.94 +31 16 27.1 0.2- 0.1+ 689/FS 1963 02 25.28226 06 00 40.98 +30 31 33.4 0.2+ 1.4+ 689/FS 1963 03 20.17378 06 02 29.45 +30 00 40.1 1.0+ 0.4- 689/FS 1963 04 25.16235 06 15 44.37 +29 15 48.9 1.2+ 0.2+ 689/FS 1963 10 25.44339 08 03 25.67 +25 40 23.6 ( 2.8+ 0.2-) 689/FS 1963 10 25.47881 08 03 25.98 +25 40 24.0 2.4+ 0.5+ 689/FS 1963 11 15.44548 08 04 40.98 +25 43 10.5 ( 2.8+ 0.8+) 689/FS 1963 11 15.47950 08 04 40.83 +25 43 10.9 2.4+ 0.4+ 689/FS 1963 12 16.44205 07 58 15.44 +26 05 38.0 1.3+ 0.5+ 689/FS 1963 12 16.47469 07 58 14.68 +26 05 39.7 0.5+ 0.4+ 689/FS 1964 01 09.39768 07 48 08.32 +26 26 55.5 0.7+ 1.4+ 689/FS 1964 01 09.43171 07 48 07.37 +26 26 56.9 1.1+ 1.3+ 689/FS 1964 02 05.30576 07 35 44.83 +26 39 12.7 0.5- 0.0 689/FS 1964 02 05.33910 07 35 43.93 +26 39 12.2 1.2- 0.6- 689/FS 1964 03 09.25387 07 26 19.59 +26 27 23.2 0.3+ 0.2+ 689/FS 1964 03 09.28720 07 26 19.32 +26 27 21.2 0.4+ 0.2- 689/FS 1964 03 15.87500 07 25 40.99 +26 21 44.3 ( 3.1- 1.5+) 033/KR 1964 03 16.79722 07 25 38.00 +26 20 52.5 1.5- 1.5+ 033/KR 1964 03 16.82639 07 25 37.90 +26 20 51.9 1.4- 2.5+ 033/KR 1964 03 17.81042 07 25 35.07 +26 19 57.5 ( 2.7- 4.6+) 033/KR 1964 03 17.85347 07 25 35.00 +26 19 53.1 2.0- 2.7+ 033/KR 1964 04 10.20696 07 27 26.40 +25 52 13.0 2.1+ 0.1+ 689/FS 1964 04 10.23960 07 27 26.76 +25 52 10.6 1.9+ 0.4+ 689/FS 1964 04 12.25133 07 27 51.57 +25 49 22.5 ( 3.2+ 0.9+) 689/FS 1964 05 04.16247 07 34 36.74 +25 14 58.0 0.7+ 0.5+ 689/FS 1964 05 11.16361 07 37 32.64 +25 02 35.5 1.0- 1.3+ 689/FS 1964 05 11.19903 07 37 33.54 +25 02 31.3 1.5- 1.1+ 689/FS 1964 10 12.43230 09 07 08.95 +19 01 47.9 0.8+ 0.4+ 689/FS 1964 11 05.40995 09 14 16.51 +18 27 10.9 0.6+ 0.8- 689/FS 1964 11 05.44537 09 14 16.96 +18 27 09.4 1.1+ 0.1- 689/FS 1964 12 11.26251 09 15 27.57 +18 15 48.1 0.1- 2.4+ 689/FS 1964 12 11.31043 09 15 27.20 +18 15 48.3 0.4+ 1.3+ 689/FS 1965 01 12.39123 09 06 38.24 +18 44 18.6 0.2+ 0.3+ 689/FS 1965 01 12.40789 09 06 37.83 +18 44 20.0 0.1- 0.5+ 689/FS 1965 02 24.33929 08 48 34.47 +19 34 41.2 0.3- 0.0 689/FS 1965 02 24.37332 08 48 33.74 +19 34 42.2 0.4+ 0.6- 689/FS 1965 04 23.21301 08 40 27.42 +19 26 33.2 2.4+ 0.3+ 689/FS 1965 04 23.24947 08 40 27.63 +19 26 30.4 1.7+ 0.0 689/FS 1965 10 30.48186 10 12 49.53 +10 37 09.7 0.9+ 0.0 689/FS 1966 02 14.33759 10 05 34.26 +10 10 33.9 1.2+ 0.0 691/ST 1966 05 09.16200 09 46 50.03 +11 18 58.6 0.4+ 0.1+ 691/ST - continued - P/Schwassmann-Wachmann 1 NK 548 - 7 Date/ UT R.A. (1950) Decl. *** O-C *** Code/Obs. h m s ¡ , " " " 1966 05 10.13782 09 46 56.38 +11 18 15.1 1.4+ 1.7+ 691/ST 1966 05 10.14074 09 46 56.38 +11 18 15.1 1.2+ 1.9+ 691/ST 1966 05 11.19576 09 47 03.68 +11 17 22.8 1.1+ 1.2+ 693/CT 1966 05 12.17500 09 47 11.03 +11 16 32.5 1.7+ 1.3+ 693/CT 1966 12 10.48394 11 21 57.69 +00 15 46.1 0.6+ 0.3- 693/CT 1966 12 11.43898 11 22 07.72 +00 13 43.2 0.6+ 0.5- 693/CT 1966 12 11.45809 11 22 07.90 +00 13 40.3 0.4+ 1.0- 693/CT 1967 01 09.44931 11 23 27.25 -00 26 00.2 0.0 0.8- 693/CT 1967 02 12.33692 11 15 57.22 -00 13 02.6 ( 0.6- 6.8+) 693/CT 1967 04 06.19794 10 56 06.68 +01 24 21.9 1.0+ 0.6+ 693/CT 1968 04 27.30022 12 00 58.35 -08 44 17.8 1.2+ 0.7- 693/CT 1969 04 21.29653 13 26 16.22 -20 04 27.0 ( 3.0+ 0.1+) 693/CT 1969 04 22.31877 13 25 49.73 -20 02 08.7 2.4+ 0.4- 693/CT 1970 08 04.98382 14 46 51.76 -26 14 46.0 0.3+ 0.2+ 821/AL 1970 08 05.01438 14 46 52.13 -26 14 45.2 0.7- 0.1- 821/AL 1971 03 27.46528 17 22 56.64 -32 29 01.1 1.0- 0.1- 693/CT 1971 04 20.47072 17 22 57.75 -32 58 24.5 1.3- 0.1+ 691/ST 1971 04 29.39583 17 21 05.05 -33 06 09.5 0.9+ 0.3+ 693/CT 1971 06 19.29861 16 57 46.75 -32 50 18.4 0.0 0.0 693/CT 1971 06 20.29514 16 57 16.06 -32 48 51.8 0.1- 0.5+ 693/CT 1972 06 16.08473 19 30 45.91 -28 25 39.1 0.3+ 2.3+ 821/AL 1972 06 16.10904 19 30 45.24 -28 25 41.2 0.2- 1.3+ 821/AL 1972 06 17.27910 19 30 14.89 -28 26 28.5 0.0 1.7+ 821/AL 1972 06 17.29507 19 30 14.45 -28 26 29.1 0.2- 1.7+ 821/AL 1972 06 19.26645 19 29 22.01 -28 27 47.1 0.4- 1.3+ 821/AL 1972 06 19.28242 19 29 21.51 -28 27 47.5 1.2- 1.5+ 821/AL 1972 07 08.22765 19 19 50.75 -28 36 27.9 ( 0.2- 4.5-) 821/AL 1972 07 08.24281 19 19 50.31 -28 36 28.0 ( 0.6+ 4.4-) 821/AL 1972 07 09.23090 19 19 18.51 -28 36 38.5 ( 1.2- 3.2-) 821/AL 1972 07 09.26817 19 19 17.22 -28 36 43.7 ( 2.1- 8.1-) 821/AL 1972 08 10.17328 19 03 53.10 -28 25 12.3 0.7+ 1.3+ 821/AL 1972 08 10.18786 19 03 52.77 -28 25 12.2 0.8+ 0.6+ 821/AL 1972 08 14.19097 19 02 27.65 -28 21 26.3 0.5+ 0.0 691/ST 1972 08 14.21979 19 02 27.03 -28 21 24.5 0.2+ 0.0 691/ST 1972 08 15.18333 19 02 08.06 -28 20 24.8 0.2- 0.5+ 691/ST 1972 08 15.19931 19 02 07.74 -28 20 23.7 0.2- 0.6+ 691/ST 1972 09 04.16806 18 58 03.40 -27 54 40.1 0.0 0.2+ 693/CT 1973 04 10.40441 21 24 46.90 -16 59 32.3 1.9- 2.6- 805/EL 1973 06 28.37444 21 42 45.65 -14 39 33.2 0.2+ 0.4- 821/AL 1973 06 28.39684 21 42 45.34 -14 39 33.5 0.1- 0.5- 821/AL 1973 07 05.99446 21 40 53.50 -14 42 10.9 1.9+ 1.4- 046/KL 1973 07 06.00869 21 40 53.16 -14 42 13.1 ( 0.6+ 3.1-) 046/KL 1973 08 23.89622 21 19 31.68 -15 34 52.4 0.1- 0.5- 046/KL 1973 08 23.91080 21 19 31.21 -15 34 53.0 0.8- 0.1- 046/KL 1973 09 20.81920 21 08 54.59 -15 54 36.1 ( 2.8+ 2.2-) 046/KL 1973 09 21.53172 21 08 42.22 -15 54 45.6 (19.9- 4.6-) 330/TS 1973 09 22.87226 21 08 24.34 -15 54 51.7 2.5+ 0.1- 046/KL 1973 09 22.88771 21 08 24.14 -15 54 53.0 ( 2.9+ 1.3-) 046/KL 1973 09 23.58473 21 08 16.84 -15 54 41.3 (36.3+ 13.5+) 330/TS 1973 09 25.69374 21 07 47.38 -15 54 58.5 1.9+ 0.9- 191/DS - continued - P/Schwassmann-Wachmann 1 NK 548 - 8 Date/ UT R.A. (1950) Decl. *** O-C *** Code/Obs. h m s ¡ , " " " 1973 09 27.0683 21 07 31.1 -15 54 48 ( 2.2- 4.9+) 774/WN Y 1973 09 27.14207 21 07 30.60 -15 54 53.0 ( 3.3+ 0.5-) 801/HO 1973 09 30.14167 21 07 00.17 -15 54 22.4 0.8- 0.9+ 693/CT 1973 09 30.17014 21 06 59.89 -15 54 22.1 0.8- 0.8+ 693/CT 1973 10 28.13472 21 07 33.26 -15 29 29.9 1.3- 1.1+ 693/CT 1974 06 16.37888 23 32 57.73 +01 30 01.0 1.4- 0.5- 691/ST 1974 07 17.32199 23 35 58.42 +02 42 07.4 1.0- 0.2- 801/HO 1974 07 20.20731 23 35 43.81 +02 45 38.9 0.3+ 1.3+ 801/HO 1974 07 21.19502 23 35 37.53 +02 46 45.2 ( 0.6+ 3.9+) 801/HO 1974 07 21.21831 23 35 37.34 +02 46 43.2 0.2+ 0.4+ 801/HO 1974 08 11.31517 23 30 58.03 +02 52 47.8 1.5- 0.6- 801/HO 1974 08 12.22881 23 30 40.32 +02 52 22.1 0.3- 0.1+ 801/HO 1974 08 12.24201 23 30 40.05 +02 52 21.9 0.4- 0.4+ 801/HO 1974 08 15.24097 23 29 38.48 +02 50 31.5 1.2- 0.5+ 801/HO 1974 08 22.21273 23 26 59.74 +02 44 00.4 0.2+ 0.4+ 801/HO 1974 08 25.96038 23 25 26.59 +02 39 16.8 1.2+ 1.2- 095/CR 1974 09 11.87529 23 17 44.73 +02 09 42.7 1.3+ 2.3- 046/KL 1974 09 11.89369 23 17 44.19 +02 09 42.5 1.2+ 0.3- 046/KL 1974 09 12.86000 23 17 16.94 +02 07 41.3 2.1+ 1.1- 046/KL 1974 09 12.87632 23 17 16.48 +02 07 40.9 2.3+ 0.6+ 046/KL 1974 09 14.92076 23 16 18.63 +02 03 22.2 1.9+ 1.2+ 095/CR 1974 09 15.27817 23 16 08.33 +02 02 35.4 0.9- 0.3+ 801/HO 1974 09 16.23056 23 15 41.68 +02 00 33.2 0.3+ 0.9+ 693/CT 1974 09 16.86616 23 15 23.70 +01 59 07.3 1.5- 1.7- 046/KL 1974 09 17.87413 23 14 55.51 +01 56 55.6 0.6- 1.3- 046/KL 1974 09 17.89323 23 14 54.96 +01 56 49.4 ( 0.7- 5.0-) 046/KL 1974 09 19.85821 23 14 00.15 +01 52 37.3 ( 2.3- 3.0+) 095/CR 1974 09 21.87168 23 13 04.66 +01 48 09.0 ( 3.1- 4.1+) 095/CR 1974 09 23.87482 23 12 10.66 +01 43 37.1 2.3+ 1.9+ 095/CR 1974 10 05.44097 23 07 19.29 +01 17 49.4 1.0+ 2.3- 372/sk 1974 10 06.12143 23 07 03.51 +01 16 26.8 0.3- 0.9+ 805/EL 1974 10 08.45909 23 06 11.48 +01 11 22.9 ( 0.3+ 3.4-) 372/sk 1974 10 09.11368 23 05 57.17 +01 10 06.9 1.3- 0.5+ 805/EL 1974 10 09.76525 23 05 43.51 +01 08 43.1 1.6+ 0.0 095/CR 1974 10 13.59757 23 04 26.13 +01 00 58.2 ( 2.5+ 3.7-) 372/sk 1974 10 14.11951 23 04 15.95 +01 00 01.3 1.5- 0.4+ 801/HO 1974 10 14.13778 23 04 15.61 +00 59 59.3 1.2- 0.5+ 801/HO 1974 10 14.60851 23 04 06.71 +00 59 03.6 1.6- 1.1- 879/fr 1974 11 09.79196 22 59 32.38 +00 24 58.2 1.4- 0.6+ 046/KL 1974 11 09.80671 22 59 32.38 +00 24 57.7 0.9- 0.6+ 046/KL 1974 11 13.78132 22 59 31.41 +00 23 08.1 2.0+ 2.7- 046/KL 1974 11 13.79660 22 59 31.45 +00 23 07.5 ( 2.5+ 3.1-) 046/KL 1974 11 13.98222 22 59 31.58 +00 23 06.1 0.7+ 1.1- 801/HO 1974 11 14.76751 22 59 32.84 +00 22 51.7 2.0+ 2.3- 046/KL 1974 11 14.78192 22 59 32.81 +00 22 50.4 ( 1.2+ 3.4-) 046/KL 1974 11 15.76723 22 59 35.07 +00 22 36.4 ( 3.3+ 4.4-) 046/KL 1974 11 15.78321 22 59 35.04 +00 22 37.2 ( 2.4+ 3.4-) 046/KL 1974 11 16.75480 22 59 37.68 +00 22 28.8 ( 0.3+ 2.9-) 046/KL 1974 11 16.76921 22 59 37.64 +00 22 28.9 0.9- 2.7- 046/KL 1974 11 17.15014 22 59 38.93 +00 22 28.8 0.4+ 0.5- 801/HO - continued - P/Schwassmann-Wachmann 1 NK 548 - 9 Date/ UT R.A. (1950) Decl. *** O-C *** Code/Obs. h m s ¡ , " " " 1974 11 17.75469 22 59 41.37 +00 22 25.2 2.6+ 1.2- 046/KL 1974 11 17.76910 22 59 41.21 +00 22 23.3 ( 0.5- 3.1-) 046/KL 1974 12 14.74071 23 05 27.51 +00 45 26.0 0.1+ 0.1+ 046/KL 1974 12 14.75512 23 05 27.91 +00 45 27.3 1.6+ 0.1- 046/KL 1974 12 18.94808 23 07 01.87 +00 53 23.9 0.6- 1.5+ 801/HO 1975 01 15.10630 23 20 42.39 +02 10 03.9 0.6- 2.5- 688/LO 1975 01 15.12812 23 20 43.27 +02 10 08.1 ( 0.9+ 3.0-) 688/LO 1975 08 19.30157 01 26 13.90 +18 46 34.7 ( 1.4- 5.2+) 801/HO 1975 09 04.18824 01 23 22.85 +19 01 11.0 0.6+ 0.1- 801/HO 1975 10 07.26065 01 10 14.52 +18 30 13.6 0.6- 0.7- 691/ST 1975 10 25.85255 01 01 21.24 +17 43 36.8 ( 3.2+ 1.0-) 046/KL 1975 10 26.77676 01 00 56.02 +17 40 58.0 ( 1.1+ 2.9-) 046/KL 1975 10 26.79123 01 00 55.83 +17 40 57.3 ( 4.1+ 1.2-) 046/KL 1975 10 27.77755 01 00 29.06 +17 38 06.9 ( 0.4+ 3.3-) 046/KL 1975 10 27.79225 01 00 28.59 +17 38 09.2 0.6- 1.5+ 046/KL 1975 10 28.77442 01 00 02.50 +17 35 18.6 0.5- 0.5- 046/KL 1975 10 28.78900 01 00 02.26 +17 35 15.8 1.7+ 0.8- 046/KL 1975 10 29.78135 00 59 36.02 +17 32 24.0 1.0- 1.5- 046/KL 1975 10 29.79582 00 59 35.67 +17 32 21.8 0.5- 1.2- 046/KL 1975 10 30.80922 00 59 09.52 +17 29 29.7 1.0+ 2.1+ 046/KL 1975 10 30.82334 00 59 08.93 +17 29 24.7 2.1- 0.5- 046/KL 1975 10 31.89642 00 58 41.71 +17 26 18.8 0.8+ 0.1- 046/KL 1975 10 31.91072 00 58 41.34 +17 26 10.3 ( 0.8+ 6.1-) 046/KL 1975 11 03.06262 00 57 47.56 +17 20 02.1 ( 3.2- 0.5+) 801/HO 1975 12 26.07572 00 50 24.77 +15 32 41.0 0.1+ 0.2- 693/CT 1975 12 28.72904 00 50 53.34 +15 31 33.0 0.8- 2.4- 046/KL 1975 12 28.74351 00 50 53.58 +15 31 33.6 0.4+ 1.5- 046/KL 1975 12 29.73610 00 51 05.55 +15 31 15.9 0.7+ 2.5- 046/KL 1975 12 29.75045 00 51 05.80 +15 31 18.6 1.8+ 0.4+ 046/KL 1975 12 31.77112 00 51 32.26 +15 30 51.6 ( 3.1+ 5.7-) 046/KL 1975 12 31.79080 00 51 32.39 +15 30 52.8 ( 1.2+ 4.4-) 046/KL 1976 02 03.13542 01 04 42.05 +16 05 20.7 0.2- 0.6+ 693/CT 1976 09 23.37291 03 26 15.54 +29 26 49.2 0.5- 2.5+ 801/HO 1976 10 24.37352 03 15 58.99 +29 29 29.4 1.2- 1.4+ 801/HO 1976 10 25.87282 03 15 16.08 +29 27 58.4 0.2+ 0.7- 046/KL 1976 10 25.88845 03 15 15.62 +29 27 57.8 0.2+ 0.4- 046/KL 1976 10 26.85095 03 14 47.49 +29 26 57.0 0.1+ 0.7+ 046/KL 1976 10 26.86970 03 14 47.22 +29 26 56.2 ( 3.9+ 1.1+) 046/KL 1976 10 26.95800 03 14 43.87 +29 26 59.8 ( 4.9- 10.2+) 095/CR 1976 10 27.90790 03 14 16.26 +29 25 42.6 0.9+ 1.8- 046/KL 1976 10 27.92527 03 14 15.77 +29 25 41.6 1.4+ 1.6- 046/KL 1976 10 29.61910 03 13 24.89 +29 23 36.8 0.9+ 2.2- 882/sz 1976 10 29.63750 03 13 24.37 +29 23 38.4 1.6+ 0.8+ 882/sz 1976 10 30.60781 03 12 54.84 +29 22 20.0 0.8+ 1.0- 882/sz 1976 10 30.62222 03 12 54.42 +29 22 20.8 1.1+ 0.9+ 372/sk 1976 10 31.75833 03 12 19.4 +29 20 44 0.1- 1.5- 372/sk Y 1976 10 31.81389 03 12 17.71 +29 20 37.5 ( 0.5+ 3.0-) 882/sz 1976 11 01.74653 03 11 48.95 +29 19 19.4 1.1+ 0.2- 882/sz 1976 11 19.20171 03 02 35.45 +28 44 56.7 1.9- 0.4+ 801/HO 1976 11 20.09912 03 02 07.63 +28 42 46.2 1.0- 0.2- 801/HO - continued - P/Schwassmann-Wachmann 1 NK 548 - 10 Date/ UT R.A. (1950) Decl. *** O-C *** Code/Obs. h m s ¡ , " " " 1976 11 22.23053 03 01 01.78 +28 37 30.4 2.3- 0.1- 801/HO 1976 11 24.64219 02 59 49.09 +28 31 20.9 0.0 1.2- 879/fr 1976 11 29.62826 02 57 24.62 +28 18 08.7 0.2- 1.0- 372/sk 1976 12 19.81321 02 49 46.00 +27 22 24.5 0.5- 2.2- 046/KL 1976 12 19.82756 02 49 45.88 +27 22 23.4 1.2+ 1.0- 046/KL 1976 12 20.77826 02 49 30.48 +27 19 51.3 0.0 0.8- 046/KL 1976 12 20.78914 02 49 30.26 +27 19 50.5 0.5- 0.2+ 046/KL 1976 12 21.71711 02 49 16.18 +27 17 25.0 2.6+ 2.3+ 046/KL 1976 12 21.73134 02 49 15.82 +27 17 23.0 0.8+ 2.5+ 046/KL 1976 12 22.77201 02 49 00.34 +27 14 36.7 0.8- 0.0 046/KL 1976 12 22.78347 02 49 00.12 +27 14 35.8 1.4- 0.9+ 046/KL 1976 12 25.74153 02 48 21.00 +27 06 58.1 0.3+ 0.6- 046/KL 1976 12 27.16492 02 48 04.18 +27 03 25.8 1.6- 0.9+ 801/HO 1976 12 27.75478 02 47 57.75 +27 02 01.1 ( 2.9- 3.7+) 046/KL 1977 01 14.02887 02 46 47.89 +26 25 29.1 1.1- 1.2- 801/HO 1977 02 17.01318 02 55 15.93 +25 58 17.2 0.7- 1.5+ 801/HO 1977 03 18.05138 03 11 40.95 +26 19 28.4 1.6- 0.2- 801/HO 1977 08 18.35400 05 17 24.08 +30 49 10.9 ( 5.2+ 1.0+) 801/HO 1977 08 21.35872 05 19 09.52 +30 53 08.6 1.9- 0.2+ 801/HO 1977 10 16.29258 05 34 34.23 +31 57 50.1 0.8- 0.3- 801/HO 1977 11 09.62188 05 28 54.04 +32 13 17.6 ( 3.9- 1.5+) 882/sz 1977 11 12.30313 05 27 50.64 +32 13 53.3 1.0- 0.7- 801/HO 1977 11 19.28897 05 24 45.26 +32 14 15.6 1.1- 0.4+ 801/HO 1977 12 08.19444 05 14 44.68 +32 04 45.7 1.0- 0.0 801/HO 1977 12 10.67778 05 13 20.35 +32 02 20.3 1.4- 0.0 879/fr 1977 12 10.69097 05 13 19.92 +32 02 19.3 1.1- 0.1- 879/fr 1977 12 11.18139 05 13 03.18 +32 01 48.1 ( 2.9- 0.5-) 801/HO 1977 12 17.19810 05 09 40.01 +31 54 42.8 1.3- 0.2- 801/HO 1978 01 01.80520 05 01 31.45 +31 30 19.5 0.5- 0.9+ 046/KL 1978 01 01.81741 05 01 31.14 +31 30 18.5 0.0 1.2+ 046/KL 1978 01 03.59618 05 00 41.38 +31 27 04.7 1.5- 0.5- 879/fr 1978 01 04.46441 05 00 17.99 +31 25 33.5 ( 0.1+ 3.7+) 885/ur 1978 01 04.51412 05 00 16.42 +31 25 24.7 2.4- 0.3+ 885/ur 1978 01 04.73590 05 00 10.57 +31 25 00.2 1.8- 1.0+ 046/KL 1978 01 04.74499 05 00 10.53 +31 25 00.1 0.9+ 1.8+ 046/KL 1978 01 05.76730 04 59 43.26 +31 23 04.2 1.0- 0.4- 046/KL 1978 01 05.77841 04 59 43.09 +31 23 04.8 0.6+ 1.4+ 046/KL 1978 01 06.53912 04 59 23.23 +31 21 38.9 0.5+ 0.3+ 885/ur 1978 01 07.75851 04 58 52.16 +31 19 20.1 0.9- 0.0 046/KL 1978 01 07.76985 04 58 51.91 +31 19 18.9 0.4- 0.1+ 046/KL 1978 01 08.75281 04 58 27.51 +31 17 25.4 0.9- 1.2- 046/KL 1978 01 08.76427 04 58 27.31 +31 17 25.8 0.2+ 0.5+ 046/KL 1978 01 14.52535 04 56 16.88 +31 06 15.3 1.0+ 0.0 879/fr 1978 01 14.53993 04 56 16.55 +31 06 14.4 0.8+ 0.9+ 879/fr 1978 01 16.01759 04 55 46.58 +31 03 18.9 0.1- 0.4+ 046/KL 1978 01 16.02911 04 55 46.33 +31 03 18.2 0.3- 1.1+ 046/KL 1978 01 30.81634 04 52 16.62 +30 34 25.5 0.6+ 1.5+ 046/KL 1978 02 01.76010 04 52 01.68 +30 30 43.0 1.1+ 0.9- 046/KL 1978 02 05.05527 04 51 42.96 +30 24 38.5 0.8- 0.3+ 801/HO 1978 02 11.09198 04 51 32.0 +30 13 54 2.7+ 2.3- 801/HO Y - continued - P/Schwassmann-Wachmann 1 NK 548 - 11 Date/ UT R.A. (1950) Decl. *** O-C *** Code/Obs. h m s ¡ , " " " 1978 02 12.81119 04 51 33.90 +30 11 00.4 1.4- 0.6- 046/KL 1978 02 27.78940 04 53 30.91 +29 48 19.1 ( 0.2- 3.2-) 046/KL 1978 02 27.80093 04 53 31.07 +29 48 18.4 ( 0.0 2.9-) 046/KL 1978 02 28.78395 04 53 44.67 +29 47 00.7 0.2- 2.5- 046/KL 1978 02 28.79552 04 53 44.86 +29 47 00.5 0.2+ 1.8- 046/KL 1978 03 02.80979 04 54 14.93 +29 44 24.8 0.1+ 1.5- 046/KL 1978 03 02.82125 04 54 15.01 +29 44 23.6 1.1- 1.8- 046/KL 1978 03 03.79841 04 54 30.74 +29 43 09.9 0.2- 2.0- 046/KL 1978 03 03.80709 04 54 30.89 +29 43 06.1 ( 0.1- 5.2-) 046/KL 1978 03 04.83590 04 54 48.25 +29 41 54.0 1.9+ 1.2- 046/KL 1978 03 04.84458 04 54 48.42 +29 41 50.2 ( 2.2+ 4.4-) 046/KL 1978 03 10.81101 04 56 42.71 +29 35 03.2 0.0 0.0 046/KL 1978 03 10.82315 04 56 42.96 +29 35 01.9 0.1- 0.5- 046/KL 1978 03 11.80964 04 57 04.23 +29 33 59.4 0.0 0.3+ 046/KL 1978 03 11.81867 04 57 04.38 +29 33 58.6 0.6- 0.1+ 046/KL 1978 03 12.78013 04 57 25.68 +29 32 58.5 1.4- 0.3+ 046/KL 1978 03 12.78759 04 57 25.85 +29 32 58.1 1.3- 0.4+ 046/KL 1978 03 13.07347 04 57 31.78 +29 32 43.3 ( 8.0- 3.3+) 801/HO 1978 03 14.07237 04 57 55.20 +29 31 39.3 2.7- 0.3+ 801/HO 1978 03 29.79203 05 05 17.09 +29 18 17.9 ( 2.9+ 0.9+) 046/KL 1978 03 29.80342 05 05 17.75 +29 18 20.1 ( 6.7+ 3.6+) 046/KL 1978 04 13.04659 05 13 50.36 +29 09 35.8 1.4+ 0.3- 801/HO 1978 10 10.01263 07 27 55.39 +27 03 43.2 ( 1.8- 4.2+) 046/KL 1978 10 31.08472 07 32 07.47 +27 00 45.3 0.1- 0.2- 010/IC 1978 11 01.30564 07 32 12.12 +27 00 54.8 1.6- 0.5+ 801/HO 1978 12 03.27125 07 27 39.96 +27 14 41.6 0.4- 0.4+ 801/HO 1978 12 06.24295 07 26 37.88 +27 16 34.3 0.7- 0.3+ 801/HO 1978 12 11.81181 07 24 27.33 +27 20 06.1 1.2- 0.2+ 372/sk 1978 12 24.82500 07 18 23.65 +27 27 31.4 1.5- 0.1- 046/KL 1978 12 24.83958 07 18 23.16 +27 27 32.7 2.1- 0.7+ 046/KL 1978 12 28.28579 07 16 36.34 +27 29 06.8 ( 2.8- 0.5-) 801/HO 1978 12 30.59965 07 15 23.14 +27 30 02.3 ( 3.5- 1.2-) 879/fr 1978 12 30.61215 07 15 22.82 +27 30 03.0 2.4- 0.8- 879/fr 1979 01 02.54549 07 13 48.96 +27 31 04.7 0.8+ 0.1+ 879/fr 1979 01 02.56771 07 13 48.28 +27 31 05.0 1.4+ 0.0 879/fr 1979 01 20.77084 07 04 05.27 +27 32 21.7 1.0- 1.7- 046/KL 1979 01 20.78537 07 04 04.90 +27 32 22.4 0.1+ 0.9- 046/KL 1979 01 23.27541 07 02 49.50 +27 31 51.2 1.6- 0.7+ 801/HO 1979 01 24.27719 07 02 19.79 +27 31 35.7 2.3- 1.5+ 801/HO 1979 01 25.79671 07 01 35.66 +27 31 06.1 1.8- 0.2+ 046/KL 1979 01 25.81407 07 01 35.18 +27 31 05.7 1.4- 0.1+ 046/KL 1979 01 30.75419 06 59 17.82 +27 29 06.4 1.6- 0.2+ 046/KL 1979 01 30.76669 06 59 17.52 +27 29 05.9 1.1- 0.0 046/KL 1979 02 04.18766 06 57 24.47 +27 26 45.8 1.0- 1.2+ 801/HO 1979 02 26.89947 06 50 54.74 +27 07 14.0 1.4+ 2.7- 046/KL 1979 02 26.91087 06 50 54.49 +27 07 14.2 0.5- 1.7- 046/KL 1979 02 27.79978 06 50 46.62 +27 06 16.6 0.8- 1.2- 046/KL 1979 02 27.81124 06 50 46.52 +27 06 14.7 0.8- 2.3- 046/KL 1979 03 22.80313 06 50 48.55 +26 37 27.2 0.7- 0.7+ 046/KL 1979 03 22.81458 06 50 48.75 +26 37 29.0 ( 0.8+ 3.5+) 046/KL - continued - P/Schwassmann-Wachmann 1 NK 548 - 12 Date/ UT R.A. (1950) Decl. *** O-C *** Code/Obs. h m s ¡ , " " " 1979 12 17.82222 09 09 19.62 +17 18 48.7 1.0+ 0.0 372/sk 1979 12 24.97875 09 07 33.71 +17 22 05.7 1.4- 0.9- 046/KL 1979 12 24.99333 09 07 33.49 +17 22 07.5 0.9- 0.3+ 046/KL 1979 12 28.11972 09 06 37.54 +17 24 10.4 1.3- 0.5+ 046/KL 1979 12 28.13402 09 06 37.27 +17 24 10.7 1.2- 0.2+ 046/KL 1979 12 28.35749 09 06 33.37 +17 24 24.3 ( 3.1+ 4.1+) 801/HO 1980 01 10.67639 09 01 37.01 +17 36 30.9 0.5+ 1.1+ 323/PR 1980 01 13.94594 09 00 12.30 +17 40 00.1 ( 1.9- 4.5-) 046/KL 1980 01 13.96040 09 00 11.98 +17 40 04.2 1.0- 1.4- 046/KL 1980 01 14.93037 08 59 46.20 +17 41 09.3 0.8- 2.7- 046/KL 1980 01 14.94461 08 59 45.85 +17 41 10.9 0.2- 2.1- 046/KL 1980 01 17.67847 08 58 31.52 +17 44 26.8 0.4- 0.1+ 323/PR 1980 01 17.90451 08 58 25.29 +17 44 37.8 ( 0.5- 2.8-) 046/KL 1980 01 17.91875 08 58 25.05 +17 44 38.7 ( 1.8+ 2.9-) 046/KL 1980 01 21.87568 08 56 33.70 +17 49 26.4 0.6+ 1.4- 046/KL 1980 01 21.88980 08 56 33.23 +17 49 27.7 0.3- 1.2- 046/KL 1980 01 24.70417 08 55 12.18 +17 52 58.9 0.3+ 0.7+ 323/PR 1980 02 09.54965 08 47 28.08 +18 11 59.2 ( 0.6+ 3.8+) 879/fr 1980 02 09.56319 08 47 27.51 +18 11 57.8 1.8- 1.5+ 879/fr 1980 02 13.58194 08 45 33.56 +18 16 20.3 0.6+ 1.2+ 323/PR 1980 02 14.86624 08 44 57.75 +18 17 35.9 0.6- 0.7- 046/KL 1980 02 14.88076 08 44 57.47 +18 17 37.0 1.2+ 0.5- 046/KL 1980 02 15.80483 08 44 32.14 +18 18 32.1 2.1+ 1.2- 046/KL 1980 02 15.81910 08 44 31.81 +18 18 36.6 ( 3.0+ 2.4+) 046/KL 1980 02 16.47917 08 44 13.48 +18 19 19.0 ( 1.7- 5.2+) 879/fr 1980 02 16.51007 08 44 12.98 +18 19 18.6 ( 3.4+ 2.9+) 879/fr 1980 02 19.91142 08 42 42.17 +18 22 26.8 1.2+ 1.0- 046/KL 1980 02 19.92768 08 42 41.72 +18 22 28.0 0.9+ 0.7- 046/KL 1980 02 20.96650 08 42 14.78 +18 23 21.7 0.3+ 2.3- 046/KL 1980 02 20.98086 08 42 14.46 +18 23 24.7 1.1+ 0.0 046/KL 1980 02 21.98977 08 41 48.79 +18 24 16.9 1.7+ 0.1+ 046/KL 1980 02 22.00412 08 41 48.36 +18 24 20.1 0.9+ 2.6+ 046/KL 1980 03 07.56146 08 36 28.35 +18 33 31.5 1.0- 0.2+ 323/PR 1980 03 16.83096 08 34 04.54 +18 35 43.7 0.9- 1.3+ 046/KL 1980 03 16.84554 08 34 04.36 +18 35 41.6 0.7- 0.9- 046/KL 1980 03 17.82031 08 33 52.37 +18 35 46.1 0.4- 0.3+ 046/KL 1980 03 17.83461 08 33 52.12 +18 35 45.7 1.4- 0.1- 046/KL 1980 03 18.50555 08 33 44.24 +18 35 52.6 ( 1.2- 3.7+) 323/PR 1981 02 15.46182 10 21 31.91 +05 53 08.3 0.7- 0.0 675/PL 1981 02 16.47293 10 21 04.91 +05 54 54.9 0.1+ 0.0 675/PL 1981 02 28.88183 10 15 30.00 +06 18 04.2 0.4+ 0.1+ 046/KL 1981 02 28.90377 10 15 29.26 +06 18 10.0 ( 1.7- 3.4+) 046/KL 1981 03 27.88359 10 05 01.39 +07 06 17.1 1.0+ 0.6- 046/KL 1981 03 27.89771 10 05 01.14 +07 06 16.4 1.2+ 2.6- 046/KL 1981 03 28.20418 10 04 55.43 +07 06 45.8 1.0- 0.4- 801/HO 1981 03 29.87578 10 04 26.28 +07 09 09.5 1.3+ 1.3- 046/KL 1981 03 29.88995 10 04 25.90 +07 09 10.5 0.6- 1.5- 046/KL 1981 04 25.49410 10 00 09.28 +07 32 01.2 0.6+ 0.5+ 879/fr 1981 04 27.89271 10 00 07.15 +07 32 26.7 ( 5.5+ 0.9+) 494/mn 1981 04 27.95642 10 00 06.82 +07 32 26.3 1.2+ 0.1+ 489/HF - continued - P/Schwassmann-Wachmann 1 NK 548 - 13 Date/ UT R.A. (1950) Decl. *** O-C *** Code/Obs. h m s ¡ , " " " 1981 04 27.96389 10 00 06.82 +07 32 27.1 1.3+ 0.9+ 489/HF 1981 04 28.48785 10 00 06.95 +07 32 30.8 ( 3.7+ 1.3+) 394/tk 1981 04 28.50347 10 00 07.18 +07 32 31.8 ( 7.2+ 2.2+) 394/tk 1981 04 29.51528 10 00 07.25 +07 32 34.7 2.6+ 1.4+ 394/tk 1981 04 29.52431 10 00 07.31 +07 32 31.9 ( 3.5+ 1.4-) 394/tk 1981 05 02.9111 10 00 13.23 +07 32 22.0 ( 5.1+ 0.5-) 494/mn 1982 01 19.76007 11 56 57.12 -07 05 48.4 2.3- 0.5- 372/sk 1982 02 21.97407 11 49 02.68 -07 04 19.2 2.0- 0.7- 046/KL 1982 02 21.98860 11 49 02.42 -07 04 17.8 1.0- 0.3- 046/KL 1982 03 15.89426 11 40 00.29 -06 26 46.9 ( 0.7- 3.6-) 046/KL 1982 03 15.90838 11 39 59.89 -06 26 44.6 ( 1.0- 3.1-) 046/KL 1982 03 23.93273 11 36 31.12 -06 08 24.4 0.1+ 2.7- 046/KL 1982 03 23.94714 11 36 30.71 -06 08 21.2 0.4- 1.6- 046/KL 1982 03 24.89931 11 36 06.25 -06 06 07.1 ( 1.3- 3.5-) 046/KL 1982 03 24.91348 11 36 05.80 -06 06 04.8 ( 2.5- 3.3-) 046/KL 1982 03 25.98993 11 35 38.58 -06 03 27.1 1.4+ 0.4- 046/KL 1982 03 26.00411 11 35 37.84 -06 03 25.0 ( 4.2- 0.4-) 046/KL 1982 03 26.94178 11 35 14.19 -06 01 10.2 ( 3.0- 1.2-) 046/KL 1982 04 14.87741 11 28 04.51 -05 15 24.0 2.4+ 0.4- 046/KL 1982 04 14.89153 11 28 04.22 -05 15 22.7 2.3+ 1.1- 046/KL 1982 04 15.86711 11 27 45.52 -05 13 07.1 2.3+ 0.3- 046/KL 1982 04 15.88227 11 27 45.37 -05 13 04.4 ( 4.5+ 0.3+) 046/KL 1982 04 16.85353 11 27 27.12 -05 10 51.3 ( 3.6+ 0.4+) 010/IC 1982 04 16.85738 11 27 26.94 -05 10 53.2 2.2+ 1.9- 046/KL 1982 04 16.87150 11 27 26.75 -05 10 48.8 ( 3.3+ 0.6+) 046/KL 1982 04 17.86968 11 27 08.65 -05 08 32.6 ( 5.8+ 1.5+) 010/IC 1982 04 18.87038 11 26 50.51 -05 06 21.8 1.7+ 1.6- 010/IC 1982 04 19.22933 11 26 43.86 -05 05 30.9 2.6- 1.5+ 801/HO 1982 05 19.86950 11 21 59.71 -04 16 43.4 0.0 0.2- 010/IC 1982 05 24.90981 11 22 04.19 -04 13 14.4 2.1- 1.0- 010/IC 1983 04 05.65694 13 05 40.11 -18 11 39.6 1.6- 2.0+ 372/sk 1983 04 05.66736 13 05 39.79 -18 11 37.4 ( 2.1- 2.9+) 372/sk 1983 05 12.48267 12 50 59.44 -16 37 22.7 0.4- 0.1+ 413/SS 1983 05 12.52434 12 50 58.72 -16 37 16.3 0.2+ 0.1- 413/SS 1984 05 03.69583 14 39 48.77 -27 14 57.8 ( 1.7- 3.6-) 323/PR 1984 06 19.61458 14 22 18.39 -25 19 16.2 0.9+ 0.0 323/PR 1985 05 24.76111 16 34 10.80 -31 57 56.6 ( 3.0- 0.3+) 323/PR 1985 06 19.61806 16 21 10.41 -31 18 11.7 0.2- 1.7- 323/PR 1985 07 22.55694 16 10 52.98 -30 10 00.6 2.2- 0.9- 323/PR 1986 05 05.28461 18 50 25.79 -29 34 44.2 0.6+ 0.1- 807/CE 1986 05 07.32697 18 50 12.09 -29 35 50.4 ( 4.6+ 0.8+) 807/CE 1987 04 24.75972 20 38 33.35 -21 03 32.3 1.2- 0.3+ 897/kj 1987 04 24.76597 20 38 33.55 -21 03 28.6 ( 0.1- 3.5+) 897/kj 1987 04 29.74878 20 40 03.81 -20 56 42.8 ( 8.4+ 0.1+) 897/kj 1987 04 29.75469 20 40 03.62 -20 56 44.3 ( 4.4+ 1.9-) 897/kj 1987 06 21.38542 20 39 09.62 -20 40 17.4 1.4- 0.6+ 707/ev 1987 06 27.34514 20 37 11.76 -20 44 08.1 0.3+ 0.7+ 707/ev 1987 08 24.96049 20 10 44.09 -21 25 35.5 ( 8.5+ 0.8+) 491/CN 1987 08 25.96399 20 10 20.92 -21 25 49.4 2.4- 1.8- 491/CN 1987 09 17.14955 20 04 35.71 -21 21 58.8 1.9- 0.4+ 695/KP - continued - P/Schwassmann-Wachmann 1 NK 548 - 14 Date/ UT R.A. (1950) Decl. *** O-C *** Code/Obs. h m s ¡ , " " " 1987 09 17.15628 20 04 35.66 -21 21 58.6 1.7- 0.4+ 695/KP 1987 09 26.09804 20 03 48.80 -21 16 01.7 0.4- 0.3+ 807/CE 1987 09 26.15292 20 03 48.66 -21 15 58.9 0.4- 0.3+ 807/CE 1987 09 27.21910 20 03 46.97 -21 15 06.9 0.5+ 0.5- 807/CE 1987 10 22.51180 20 07 00.68 -20 44 06.2 ( 0.9- 3.8-) 323/PR 1987 10 24.11978 20 07 27.68 -20 41 24.3 0.5- 0.2+ 809/ES 1987 10 26.52153 20 08 11.18 -20 37 20.1 0.2+ 0.1+ 323/PR 1987 11 09.52986 20 13 33.58 -20 10 09.1 1.3+ 1.1+ 323/PR 1988 04 15.61714 22 05 13.13 -10 14 39.4 1.9- 1.4- 568/MK 1988 05 18.56924 22 20 02.14 -08 19 56.9 ( 4.3+ 4.0-) 568/MK 1988 05 19.58851 22 20 21.32 -08 16 58.6 ( 5.9+ 0.1-) 568/MK 1988 08 06.98681 22 13 52.95 -07 19 42.1 ( 1.0- 3.0+) 046/KL 1988 08 06.99861 22 13 52.63 -07 19 46.3 1.3- 0.3- 046/KL 1988 08 11.59492 22 11 53.36 -07 26 09.5 0.1+ 0.0 413/SS 1988 08 11.65395 22 11 51.85 -07 26 14.1 1.5+ 0.6+ 413/SS 1988 08 13.65556 22 10 58.32 -07 29 13.9 0.9+ 1.1+ 413/SS 1988 08 14.69306 22 10 30.30 -07 30 50.3 1.1+ 0.6+ 413/SS 1988 08 16.01337 22 09 54.47 -07 32 57.4 1.4+ 0.2+ 046/KL 1988 08 16.02778 22 09 54.08 -07 32 57.9 1.5+ 1.0+ 046/KL 1988 08 16.74517 22 09 34.43 -07 34 05.9 1.6+ 0.7- 413/SS 1988 08 18.00587 22 08 59.87 -07 36 11.4 0.9+ 1.7- 046/KL 1988 08 18.01721 22 08 59.46 -07 36 13.2 0.5- 2.4- 046/KL 1988 08 18.93312 22 08 34.33 -07 37 42.8 0.2+ 2.0- 046/KL 1988 08 18.94447 22 08 34.02 -07 37 44.1 0.3+ 2.2- 046/KL 1988 08 19.64850 22 08 14.46 -07 38 48.3 0.9- 1.1+ 413/SS 1988 08 20.25205 22 07 57.88 -07 39 49.0 0.6+ 0.6+ 807/CE 1988 08 20.25877 22 07 57.70 -07 39 50.1 0.7+ 0.2+ 807/CE 1988 08 20.26308 22 07 57.56 -07 39 50.4 0.5+ 0.3+ 807/CE 1988 08 20.36562 22 07 54.94 -07 40 04.6 ( 3.2+ 1.4-) 657/VC 1988 08 20.39132 22 07 54.16 -07 40 04.9 2.4+ 0.9+ 657/VC 1988 08 20.70603 22 07 45.13 -07 40 35.1 1.7- 0.0 413/SS 1988 08 21.34939 22 07 27.51 -07 41 40.3 0.3+ 1.9+ 657/VC 1988 08 22.36806 22 06 59.36 -07 43 27.7 1.7+ 2.1- 657/VC 1988 08 23.32090 22 06 33.01 -07 45 03.6 2.5+ 0.6- 657/VC 1988 08 23.35562 22 06 31.99 -07 45 07.9 1.9+ 1.3- 657/VC 1988 08 24.05081 22 06 12.53 -07 46 21.0 ( 0.2- 3.0-) 046/KL 1988 08 24.06215 22 06 12.17 -07 46 22.5 ( 0.8- 3.3-) 046/KL 1988 08 24.37368 22 06 03.82 -07 46 54.0 ( 3.0+ 2.6-) 657/VC 1988 09 02.25382 22 02 00.32 -08 02 20.4 0.7+ 1.1+ 657/VC 1988 09 08.84167 21 59 07.78 -08 13 45.8 1.5- 0.1+ 046/KL 1988 09 08.85579 21 59 07.52 -08 13 49.0 0.1+ 1.6- 046/KL 1988 09 09.43060 21 58 53.05 -08 14 45.9 1.7+ 0.7- 568/MK 1988 09 09.44332 21 58 52.70 -08 14 47.1 1.4+ 0.6- 568/MK 1988 09 09.44689 21 58 52.66 -08 14 47.2 2.2+ 0.4- 568/MK 1988 09 09.45025 21 58 52.54 -08 14 47.6 1.7+ 0.4- 568/MK 1988 09 09.45332 21 58 52.45 -08 14 47.8 1.5+ 0.3- 568/MK 1988 09 09.83229 21 58 43.02 -08 15 27.0 1.4+ 0.4- 046/KL 1988 09 09.84641 21 58 42.59 -08 15 27.4 0.4+ 0.6+ 046/KL 1988 09 10.83750 21 58 17.94 -08 17 09.4 0.6+ 1.6- 046/KL 1988 09 10.85174 21 58 17.52 -08 17 09.2 0.4- 0.0 046/KL - continued - P/Schwassmann-Wachmann 1 NK 548 - 15 Date/ UT R.A. (1950) Decl. *** O-C *** Code/Obs. h m s ¡ , " " " 1988 09 11.35735 21 58 04.99 -08 17 56.0 ( 1.2- 3.2+) 568/MK 1988 09 11.36346 21 58 04.84 -08 17 55.5 ( 1.1- 4.3+) 568/MK 1988 09 11.36833 21 58 04.72 -08 17 56.1 ( 1.1- 4.2+) 568/MK 1988 09 11.37308 21 58 04.59 -08 17 56.5 ( 1.2- 4.2+) 568/MK 1988 09 12.40323 21 57 39.41 -08 19 41.9 1.9- 1.0+ 568/MK 1988 09 12.40843 21 57 39.30 -08 19 42.3 1.6- 1.1+ 568/MK 1988 09 12.41307 21 57 39.16 -08 19 42.5 2.0- 1.4+ 568/MK 1988 10 03.80091 21 50 44.11 -08 48 42.8 0.1- 2.6- 046/KL 1988 10 03.81498 21 50 44.22 -08 48 43.5 ( 4.5+ 2.5-) 046/KL 1988 10 04.77515 21 50 30.99 -08 49 33.7 0.0 2.6+ 046/KL 1988 10 04.78644 21 50 30.75 -08 49 37.4 1.3- 0.5- 046/KL 1988 10 09.15694 21 49 39.02 -08 53 15.4 0.3- 0.9+ 809/ES 1988 10 09.43010 21 49 36.27 -08 53 28.2 0.1- 0.3+ 413/SS 1988 10 10.15278 21 49 28.86 -08 53 59.7 1.2- 0.1- 809/ES 1988 12 05.38681 21 57 25.42 -08 10 50.6 0.4- 1.5+ 897/kj 1988 12 05.41510 21 57 26.11 -08 10 46.6 0.6- 1.7+ 897/kj 1988 12 07.38675 21 58 16.90 -08 06 15.1 1.9- 0.9- 897/kj 1988 12 07.41470 21 58 17.62 -08 06 09.1 1.9- 1.1+ 897/kj 1988 12 09.26455 21 59 07.15 -08 01 40.9 1.1- 0.9+ 568/MK 1988 12 09.27730 21 59 07.49 -08 01 38.5 1.1- 1.5+ 568/MK 1988 12 10.26005 21 59 34.56 -07 59 13.1 0.3+ 0.2+ 568/MK 1988 12 10.27630 21 59 34.96 -07 59 10.9 0.4- 0.0 568/MK 1988 12 10.38287 21 59 37.90 -07 58 56.0 1.1- 0.8- 897/kj 1988 12 10.39971 21 59 38.35 -07 58 53.1 1.3- 0.5- 897/kj 1988 12 30.37182 22 10 17.36 -06 59 09.5 0.4- 0.4+ 897/kj 1988 12 30.39988 22 10 18.39 -06 59 02.5 0.1+ 1.6+ 897/kj 1989 01 01.36991 22 11 29.54 -06 52 13.7 0.6- 0.9- 897/kj 1989 01 01.40139 22 11 30.62 -06 52 07.5 1.4- 1.3- 897/kj 1989 01 02.39959 22 12 07.30 -06 48 35.5 0.3+ 1.5- 897/kj 1989 06 02.59579 23 53 15.70 +05 26 52.7 1.1- 0.3+ 568/MK 1989 06 02.61211 23 53 16.11 +05 26 56.1 0.9- 0.4- 568/MK 1989 06 03.59583 23 53 40.38 +05 31 01.7 0.9- 0.7- 568/MK 1989 06 03.60866 23 53 40.71 +05 31 04.9 0.5- 0.7- 568/MK 1989 07 06.71042 00 02 30.56 +07 23 34.2 0.2+ 0.6- 897/kj 1989 07 06.71806 00 02 30.56 +07 23 35.6 0.5- 0.4- 897/kj 1989 07 09.27839 00 02 45.80 +07 29 51.9 0.9- 0.9- 801/HO 1989 07 12.42993 00 02 59.32 +07 37 03.0 2.4+ 0.7- 657/VC 1989 08 01.47594 00 02 00.10 +08 07 31.3 1.3- 0.4+ 568/MK 1989 08 03.45115 00 01 40.79 +08 09 00.6 2.6- 0.8+ 568/MK 1989 08 03.46034 00 01 40.72 +08 09 01.0 2.2- 0.8+ 568/MK 1989 08 06.26638 00 01 09.58 +08 10 37.8 1.3+ 1.0+ 801/HO 1989 08 27.26194 23 55 00.93 +08 04 47.8 0.3+ 0.7- 801/HO 1989 08 28.58611 23 54 30.95 +08 03 25.6 0.9+ 0.6+ 897/kj 1989 08 28.59306 23 54 30.62 +08 03 24.1 1.5- 0.4- 897/kj 1989 08 31.96863 23 53 11.06 +07 59 20.5 1.3- 0.4+ 046/KL 1989 08 31.98328 23 53 10.59 +07 59 18.2 ( 2.9- 0.8-) 046/KL 1989 09 01.99670 23 52 46.00 +07 57 58.6 2.0- 1.2+ 071/SM 1989 09 02.04184 23 52 45.10 +07 57 54.8 1.4+ 1.1+ 071/SM 1989 09 02.95741 23 52 22.50 +07 56 37.7 0.3- 1.2+ 071/SM 1989 09 02.99977 23 52 21.40 +07 56 34.0 0.7- 1.2+ 071/SM - continued - P/Schwassmann-Wachmann 1 NK 548 - 16 Date/ UT R.A. (1950) Decl. *** O-C *** Code/Obs. h m s ¡ , " " " 1989 09 03.92731 23 51 58.40 +07 55 10.7 0.0 0.7- 071/SM 1989 09 04.32325 23 51 48.49 +07 54 37.2 1.3+ 1.5+ 801/HO 1989 09 07.96080 23 50 15.55 +07 48 43.0 1.6+ 0.2+ 046/KL 1989 09 07.97498 23 50 15.10 +07 48 42.6 0.5+ 1.2+ 046/KL 1989 09 09.02610 23 49 47.63 +07 46 52.4 0.2+ 1.0+ 046/KL 1989 09 09.03877 23 49 47.25 +07 46 51.8 0.4- 1.8+ 046/KL 1989 09 20.45972 23 44 40.36 +07 23 36.6 0.2+ 0.6+ 897/kj 1989 09 20.48299 23 44 39.76 +07 23 34.2 0.8+ 1.3+ 897/kj 1989 09 22.86531 23 43 35.05 +07 18 06.4 ( 1.6+ 3.1+) 046/KL 1989 09 22.87799 23 43 34.67 +07 18 03.4 1.2+ 1.9+ 046/KL 1989 09 29.88686 23 40 27.00 +07 01 01.5 1.5+ 1.6+ 046/KL 1989 09 29.90110 23 40 26.63 +07 00 59.2 1.6+ 1.4+ 046/KL 1989 10 03.87000 23 38 43.92 +06 50 57.5 0.1- 1.1+ 046/KL 1989 10 03.88418 23 38 43.52 +06 50 55.8 0.6- 1.6+ 046/KL 1989 10 04.82434 23 38 19.82 +06 48 31.8 0.3- 1.3+ 046/KL 1989 10 04.83846 23 38 19.47 +06 48 31.3 ( 0.2- 3.0+) 046/KL 1989 10 05.80472 23 37 55.29 +06 46 01.1 0.9- 0.8+ 046/KL 1989 10 05.81896 23 37 54.88 +06 45 59.0 1.6- 0.9+ 046/KL 1989 10 08.49317 23 36 49.67 +06 39 08.9 0.6+ 0.5+ 897/kj 1989 10 08.53819 23 36 48.47 +06 39 05.1 ( 0.8- 3.6+) 897/kj 1989 10 08.66090 23 36 45.53 +06 38 44.5 0.5+ 0.2- 413/SS 1989 10 08.68361 23 36 44.93 +06 38 42.3 0.2- 1.1+ 413/SS 1989 10 19.75973 23 32 44.03 +06 10 59.8 ( 2.9+ 0.9+) 046/KL 1989 10 19.77380 23 32 43.75 +06 10 58.1 ( 2.8+ 1.2+) 046/KL 1989 10 20.47494 23 32 30.08 +06 09 16.6 0.3- 0.2+ 897/kj 1989 10 20.49803 23 32 29.74 +06 09 14.8 1.4+ 1.7+ 897/kj 1989 10 20.51044 23 32 29.51 +06 09 13.3 1.9+ 0.0 413/SS 1989 10 20.52431 23 32 29.16 +06 09 11.1 0.7+ 0.2- 413/SS 1989 10 22.79016 23 31 47.73 +06 03 49.3 ( 4.1+ 0.6+) 046/KL 1989 10 22.80422 23 31 47.40 +06 03 46.5 ( 3.0+ 0.2-) 046/KL 1989 10 24.49861 23 31 18.0 +05 59 56 ( 3.9+ 2.7+) 897/kj Y 1989 10 24.53912 23 31 17.15 +05 59 45.5 1.8+ 2.3- 897/kj 1989 10 24.54861 23 31 16.87 +05 59 47.0 0.1+ 0.5+ 897/kj 1989 10 24.76979 23 31 13.30 +05 59 14.8 1.4+ 1.2- 046/KL 1989 10 24.78113 23 31 13.17 +05 59 13.6 2.4+ 0.9- 046/KL 1989 10 25.78396 23 30 56.65 +05 56 55.6 ( 3.1+ 3.8-) 095/CR 1989 10 25.87951 23 30 55.00 +05 56 49.6 ( 1.9+ 2.9+) 589/SK 1989 10 25.91528 23 30 54.37 +05 56 42.0 1.4+ 0.2+ 552/SV 1989 10 25.92743 23 30 54.23 +05 56 42.0 2.3+ 1.7+ 589/SK 1989 10 25.93403 23 30 54.09 +05 56 38.8 1.8+ 0.5- 552/SV 1989 10 26.76007 23 30 40.88 +05 54 49.0 0.5- 0.8- 589/SK 1989 10 26.86562 23 30 39.22 +05 54 35.1 0.2+ 0.8- 589/SK 1989 10 26.90972 23 30 38.61 +05 54 29.8 1.7+ 0.3- 552/SV 1989 10 26.92778 23 30 38.36 +05 54 26.2 2.3+ 1.5- 552/SV 1989 10 27.14368 23 30 34.82 +05 53 59.6 0.7- 0.2+ 801/HO 1989 10 27.85868 23 30 23.63 +05 52 25.9 ( 5.3- 0.5-) 589/SK 1989 10 27.87782 23 30 24.06 +05 52 25.7 ( 6.0+ 1.8+) 095/CR 1989 10 27.89848 23 30 23.77 +05 52 22.5 ( 6.5+ 1.3+) 095/CR 1989 10 28.07424 23 30 20.78 +05 51 58.4 0.3+ 0.2- 801/HO 1989 10 28.78212 23 30 10.50 +05 50 27.7 2.0+ 0.1- 046/KL - continued - P/Schwassmann-Wachmann 1 NK 548 - 17 Date/ UT R.A. (1950) Decl. *** O-C *** Code/Obs. h m s ¡ , " " " 1989 10 28.78924 23 30 10.29 +05 50 26.1 0.5+ 0.8- 046/KL 1989 10 29.44167 23 30 00.94 +05 49 04.6 0.3+ 0.2- 897/kj 1989 10 29.45642 23 30 00.76 +05 49 02.7 0.9+ 0.2- 897/kj 1989 10 29.74417 23 29 56.86 +05 48 26.9 ( 2.9+ 0.2+) 095/CR 1989 10 29.76499 23 29 56.60 +05 48 25.4 ( 3.6+ 1.3+) 095/CR 1989 10 30.85660 23 29 41.34 +05 46 08.9 2.1- 0.5- 589/SK 1989 11 02.46400 23 29 08.74 +05 40 59.4 2.5- 0.8- 897/kj 1989 11 04.85556 23 28 42.71 +05 36 33.5 0.5+ 0.6+ 552/SV 1989 11 04.89236 23 28 42.21 +05 36 29.6 1.1- 0.7+ 552/SV 1989 11 18.75069 23 27 23.14 +05 16 48.9 ( 2.7- 6.1+) 046/KL 1989 11 18.76562 23 27 23.28 +05 16 42.1 0.2- 0.2+ 046/KL 1989 11 20.56597 23 27 22.25 +05 14 59.8 0.1+ 2.0+ 897/kj 1989 11 24.41875 23 27 27.70 +05 11 55.2 ( 3.2+ 0.7-) 897/kj 1989 12 01.42442 23 28 01.88 +05 08 54.0 ( 3.9- 1.6-) 897/kj 1989 12 01.50469 23 28 02.80 +05 08 57.7 ( 1.7+ 3.1+) 897/kj 1989 12 02.04704 23 28 06.70 +05 08 49.6 1.0- 0.6+ 801/HO 1989 12 21.39462 23 32 31.46 +05 18 42.4 1.8- 2.5+ 897/kj 1989 12 21.44155 23 32 32.42 +05 18 51.4 ( 0.8- 8.3+) 897/kj 1989 12 28.23091 23 34 57.10 +05 28 09.8 0.5- 0.4+ 568/MK 1989 12 28.23363 23 34 57.18 +05 28 09.6 0.2- 0.0 568/MK 1989 12 28.24478 23 34 57.41 +05 28 10.4 0.5- 0.3- 568/MK 1990 08 03.43167 01 46 45.89 +20 50 44.2 0.7- 1.2- 657/VC 1990 08 04.71435 01 46 56.61 +20 54 08.9 0.8- 1.8- 897/kj 1990 08 04.73333 01 46 56.65 +20 54 11.2 2.3- 2.6- 897/kj 1990 08 20.35232 01 47 40.38 +21 28 23.4 1.1- 1.3+ 801/HO 1990 08 20.37020 01 47 40.39 +21 28 23.5 0.2- 0.4- 801/HO 1990 09 01.72431 01 46 18.38 +21 44 24.8 1.0- 1.3- 885/ur 1990 09 01.73681 01 46 18.35 +21 44 25.5 0.6+ 1.3- 885/ur 1990 09 12.69931 01 43 43.13 +21 49 36.0 0.9+ 1.0- 885/ur 1990 09 16.31708 01 42 36.06 +21 49 22.6 0.8- 1.6+ 801/HO 1990 09 16.93889 01 42 24.00 +21 49 11.3 0.5+ 0.7- 046/KL 1990 09 16.95389 01 42 23.69 +21 49 10.9 0.5+ 0.9- 046/KL 1990 09 18.31535 01 41 56.27 +21 48 47.1 2.5+ 0.4+ 801/HO 1990 09 19.30618 01 41 35.45 +21 48 24.0 0.4- 1.0+ 801/HO 1990 09 24.97014 01 39 28.63 +21 44 40.9 0.6+ 0.9- 046/KL 1990 09 24.98090 01 39 27.95 +21 44 40.6 ( 5.2- 0.7-) 046/KL 1990 10 12.92882 01 31 31.45 +21 17 58.7 1.1+ 0.6+ 046/KL 1990 10 12.94236 01 31 30.86 +21 17 55.3 1.7- 1.1- 046/KL 1990 10 13.88993 01 31 03.92 +21 15 56.4 0.1- 0.7- 046/KL 1990 10 13.90278 01 31 03.57 +21 15 55.4 0.3+ 0.1- 046/KL 1990 10 15.22319 01 30 25.62 +21 13 03.5 0.3- 1.0- 801/HO 1990 10 15.24450 01 30 24.98 +21 13 00.7 0.5- 1.0- 801/HO 1990 10 16.84815 01 29 39.05 +21 09 25.7 1.0+ 0.0 046/KL 1990 10 16.86094 01 29 38.50 +21 09 23.2 1.5- 0.8- 046/KL 1990 11 12.56001 01 17 45.38 +19 56 12.4 1.4- 1.9- 897/kj 1990 11 12.59716 01 17 44.49 +19 56 03.8 ( 1.9- 3.9-) 897/kj 1990 11 14.13010 01 17 10.77 +19 51 36.8 1.0- 0.1+ 801/HO 1990 11 14.79771 01 16 56.82 +19 49 33.1 ( 4.6+ 5.9-) 095/CR 1990 11 14.81194 01 16 56.20 +19 49 35.2 0.3+ 1.3- 095/CR 1990 11 21.17954 01 14 50.91 +19 31 12.4 0.5- 0.2+ 801/HO - continued - P/Schwassmann-Wachmann 1 NK 548 - 18 Date/ UT R.A. (1950) Decl. *** O-C *** Code/Obs. h m s ¡ , " " " 1990 11 21.58131 01 14 43.71 +19 30 05.4 1.4- 1.2+ 897/kj 1990 11 21.61123 01 14 43.15 +19 30 00.4 1.6- 1.3+ 897/kj 1990 11 23.44554 01 14 12.08 +19 24 51.8 0.9+ 0.6+ 897/kj 1990 11 23.49473 01 14 11.10 +19 24 42.5 1.0- 0.5- 897/kj 1990 12 15.03706 01 10 46.90 +18 34 05.6 0.4- 0.9+ 801/HO 1990 12 15.11919 01 10 46.69 +18 33 56.2 0.4- 0.5+ 801/HO 1991 02 09.97654 01 26 26.77 +18 35 30.0 0.3- 0.2+ 801/HO 1991 02 16.97733 01 30 24.64 +18 49 19.6 0.3- 0.3+ 801/HO ( ) -------- Rejected Obs.

Director, Computing Section Syuichi Nakano 1991 Apr. 6

Back to Nakano Note Page