Table A.2
Collected (➹-★) observations ((comet-star) positions in right ascension and declination).
Comet | Number of | Number of | Per cent of | P r e l i m i n a r y g r a v i t a t i o n a l s o l u t i o n | |||
➹-★ | recalculated | recalculated | b e f o r e PPM | a f t e r PPM | |||
obs. | ➹ positions | observations | rms [.̋] | No. of residuals | rms [.̋] | No. of residuals | |
(1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) |
|
|||||||
C/1902 R1 | 1175 | 753 | 51 | 3.76 | 2454 | 3.53 | 2472 |
C/1902 X1 | 606 | 436 | 59 | 3.48 | 1290 | 3.37 | 1301 |
C/1903 M1 | 430 | 379 | 65 | 4.39 | 920 | 3.76 | 920 |
C/1904 Y1 | 150 | 132 | 80 | 3.32 | 300 | 3.26 | 301 |
C/1906 B1 | 226 | 135 | 51 | 4.45 | 456 | 3.77 | 450 |
C/1906 E1 | 369 | 315 | 68 | 2.45 | 775 | 2.58 | 806 |
C/1907 E1 | 157 | 129 | 72 | 4.14 | 304 | 2.82 | 292 |
C/1911 S3 | 137 | 86 | 63 | 3.83 | 243 | 3.27 | 261 |
C/1912 R1 | 864 | 726 | 77 | 3.84 | 1635 | 2.91 | 1646 |
C/1913 Y1 | 947 | 788 | 78 | 3.33 | 1773 | 2.70 | 1798 |
C/1914 F1 | 266 | 229 | 92 | 4.10 | 496 | 3.88 | 500 |
C/1914 M1 | 47 | 29 | 41 | 2.83 | 122 | 2.41 | 118 |
C/1916 G1 | 375 | 291 | 62 | 3.49 | 760 | 3.14 | 836➹ |
C/1919 Q2 | 247 | 208 | 75 | 3.38 | 488 | 2.58 | 498 |
C/1921 E1 | 498 | 392 | 69 | 4.64 | 827 | 4.49 | 916➹ |
C/1922 U1 | 409 | 276 | 57 | 2.62 | 738 | 2.57 | 823➹ |
C/1925 F1 | 193 | 157 | 59 | 4.48 | 449 | 4.34 | 472 |
C/1925 G1 | 409 | 366 | 61 | 4.89 | 946 | 4.71 | 968 |
C/1925 W1 | 246 | 201 | 59 | 2.92 | 541 | 2.39 | 564 |
C/1932 M1 | 111 | 90 | 48 | 3.52 | 314 | 2.89 | 316 |
C/1932 M2 | 165 | 96 | 29 | 2.13 | 521 | 2.13 | 536 |
C/1935 Q1 | 16 | 4 | 3 | 1.63 | 248 | 1.62 | 248 |
C/1937 C1 | 220 | 187 | 45 | 4.42 | 745 | 3.49 | 729 |
C/1937 N1 | 170 | 153 | 37 | 3.69 | 733 | 3.01 | 745 |
C/1940 R2 | 127 | 113 | 31 | 2.33 | 612 | 2.19 | 605 |
C/1940 S1 | 5 | 2 | 6 | 5.11 | 65 | 5.10 | 65 |
C/1941 K1 | 111 | 93 | 20 | 3.09 | 769 | 3.26 | 778 |
C/1942 C1 | 39 | 38 | 17 | 2.41 | 414 | 2.41 | 414 |
C/1942 C2 | 0 | 0 | 0 | 1.65 | 88 | 1.65 | 88 |
C/1944 K2 | 0 | 0 | 0 | 1.58 | 56 | 1.58 | 56 |
C/1946 C1 | 78 | 54 | 11 | 2.71 | 828 | 2.71 | 828 |
C/1946 P1 | 8 | 5 | 3 | 1.13 | 254 | 1.13 | 254 |
C/1946 U1 | 33 | 20 | 14 | 1.88 | 252 | 1.88 | 254 |
C/1947 S1 | 64 | 59 | 18 | 4.62 | 551 | 4.32 | 553 |
C/1947 Y1 | 4 | 4 | 3 | 1.44 | 198 | 1.44 | 198 |
C/1948 E1 | 26 | 23 | 9 | 2.44 | 400 | 2.31 | 401 |
C/1948 T1 | 0 | 0 | 0 | 0.94 | 52 | 0.94 | 52 |
C/1950 K1 | 0 | 0 | 0 | 1.28 | 466 | 1.28 | 466 |
Notes. Column (3) shows the number of recalculated (➹-★) positions using the PPM catalogue, their percentage in comparison to the entire data set collected here (see Col. (5) of Table A.1) is given in Col. (4). The rms and number of residuals taken for preliminary solution are given in Cols. (5)–(6) – before position recalculations based on PPM catalogue, and in Cols. (7)–(8) – after this recalculation. In some cases only (➹-★) data were published – where a significant number of these observations were successfully processed using the PPM star catalogue are marked by ➹ in Col. (8).
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