| E | O (JD) | O (dat) | Period |
| -107 | 2398944 | 1855-12-26 | 406.56 |
| -106 | 2399359 | 1857-02-13 | 406.79 |
| -100 | 2401792 | 1863-10-13 | 406.58 |
| -98 | 2402609 | 1866-01-07 | 406.34 |
| -97 | 2403014 | 1867-02-16 | 406.26 |
| -93 | 2404639 | 1871-07-30 | 405.76 |
| -92 | 2405053 | 1872-09-16 | 405.48 |
| -91 | 2405448 | 1873-10-16 | 404.79 |
| -90 | 2405849 | 1874-11-21 | 403.83 |
| -88 | 2406666 | 1877-02-15 | 403.14 |
| -82 | 2409084 | 1883-09-30 | 402.6 |
| -81 | 2409502 | 1884-11-21 | 402.41 |
| -80 | 2409882 | 1885-12-06 | 402.52 |
| -74 | 2412295 | 1892-07-15 | 402.59 |
| -73 | 2412690 | 1893-08-14 | 402.77 |
| -72 | 2413097 | 1894-09-25 | 403.51 |
| -71 | 2413503 | 1895-11-05 | 404.33 |
| -70 | 2413914 | 1896-12-20 | 405.99 |
| -65 | 2415932 | 1902-07-01 | 406.85 |
| -63 | 2416750 | 1904-09-26 | 408.03 |
| -62 | 2417168 | 1905-11-18 | 408.88 |
| -61 | 2417581 | 1907-01-05 | 409.41 |
| -60 | 2418002 | 1908-03-01 | 410.08 |
| -59 | 2418378 | 1909-03-12 | 412.12 |
| -56 | 2419644 | 1912-08-29 | 412.01 |
| -55 | 2420058 | 1913-10-17 | 410.89 |
| -54 | 2420455 | 1914-11-18 | 410.49 |
| -53 | 2420866 | 1916-01-03 | 410.3 |
| -52 | 2421297 | 1917-03-09 | 409.31 |
| -51 | 2421692 | 1918-04-08 | 406.45 |
| -50 | 2422079 | 1919-04-30 | 404.87 |
| -49 | 2422502 | 1920-06-26 | 403.96 |
| -48 | 2422916 | 1921-08-14 | 402.85 |
| -47 | 2423291 | 1922-08-24 | 402.76 |
| -46 | 2423712 | 1923-10-19 | 404.52 |
| -45 | 2424095 | 1924-11-05 | 405.82 |
| -44 | 2424503 | 1925-12-18 | 406.18 |
| -43 | 2424911 | 1927-01-30 | 406.89 |
| -41 | 2425732 | 1929-04-30 | 408.3 |
| -40 | 2426152 | 1930-06-24 | 407.85 |
| -39 | 2426561 | 1931-08-07 | 408.39 |
| -38 | 2426967 | 1932-09-16 | 407.87 |
| -37 | 2427366 | 1933-10-20 | 407.02 |
| -36 | 2427779 | 1934-12-07 | 404.42 |
| -35 | 2428171 | 1936-01-03 | 402.52 |
| -34 | 2428585 | 1937-02-20 | 401.88 |
| -33 | 2428993 | 1938-04-04 | 401.14 |
| -32 | 2429395 | 1939-05-11 | 400.73 |
| -30 | 2430176 | 1941-06-30 | 400.08 |
| -29 | 2430576 | 1942-08-04 | 400.12 |
| -28 | 2430987 | 1943-09-19 | 399.92 |
| -27 | 2431380 | 1944-10-16 | 400.48 |
| -26 | 2431784 | 1945-11-24 | 401.84 |
| -25 | 2432182 | 1946-12-27 | 403.79 |
| -24 | 2432588 | 1948-02-06 | 404.21 |
| -23 | 2432994 | 1949-03-18 | 405.39 |
| -22 | 2433400 | 1950-04-28 | 406.35 |
| -21 | 2433810 | 1951-06-12 | 407.33 |
| -20 | 2434218 | 1952-07-24 | 408.47 |
| -19 | 2434617 | 1953-08-27 | 408.82 |
| -18 | 2435042 | 1954-10-26 | 408.95 |
| -17 | 2435437 | 1955-11-25 | 408.54 |
| -16 | 2435856 | 1957-01-17 | 407.84 |
| -15 | 2436270 | 1958-03-07 | 407.14 |
| -14 | 2436672 | 1959-04-13 | 406.15 |
| -13 | 2437078 | 1960-05-23 | 405.44 |
| -12 | 2437477 | 1961-06-26 | 404.53 |
| -11 | 2437880 | 1962-08-03 | 403.67 |
| -10 | 2438284 | 1963-09-11 | 403.35 |
| -9 | 2438683 | 1964-10-14 | 403.73 |
| -8 | 2439103 | 1965-12-08 | 403.55 |
| -7 | 2439486 | 1966-12-26 | 403.72 |
| -6 | 2439902 | 1968-02-15 | 403.46 |
| -5 | 2440304 | 1969-03-23 | 403.74 |
| -4 | 2440712 | 1970-05-05 | 404.21 |
| -3 | 2441106 | 1971-06-03 | 404.88 |
| -2 | 2441513 | 1972-07-14 | 406.2 |
| -1 | 2441912 | 1973-08-17 | 406.43 |
| 0 | 2442327 | 1974-10-06 | 406.96 |
| 1 | 2442736 | 1975-11-19 | 407.25 |
| 2 | 2443152 | 1977-01-08 | 408.69 |
| 3 | 2443556 | 1978-02-16 | 409.64 |
| 4 | 2443963 | 1979-03-30 | 410.48 |
| 5 | 2444366 | 1980-05-06 | 410.75 |
| 6 | 2444771 | 1981-06-15 | 410.99 |
| 7 | 2445200 | 1982-08-18 | 411.26 |
| 8 | 2445614 | 1983-10-06 | 412.1 |
| 9 | 2446025 | 1984-11-20 | 412.11 |
| 10 | 2446436 | 1986-01-05 | 412.03 |
| 11 | 2446842 | 1987-02-15 | 411.99 |
| 12 | 2447255 | 1988-04-03 | 411.3 |
| 13 | 2447672 | 1989-05-25 | 410.46 |
| 14 | 2448073 | 1990-06-30 | 410.78 |
| 15 | 2448486 | 1991-08-17 | 411.04 |
| 16 | 2448908 | 1992-10-12 | 410.69 |
| 17 | 2449316 | 1993-11-24 | 411.18 |
| 18 | 2449707 | 1994-12-20 | 410.92 |
| 19 | 2450137 | 1996-02-23 | 410.24 |
| 20 | 2450547 | 1997-04-08 | 409.29 |
| 21 | 2450945 | 1998-05-11 | 407.91 |
| 22 | 2451378 | 1999-07-18 | 407.19 |
| 23 | 2451773 | 2000-08-16 | 407.15 |
| 24 | 2452167 | 2001-09-14 | 405.81 |
| 25 | 2452579 | 2002-10-31 | 405.16 |
| 26 | 2452975 | 2003-12-01 | 403.87 |
| 27 | 2453381 | 2005-01-10 | 401.82 |
| 28 | 2453801 | 2006-03-06 | 402.23 |
| 29 | 2454200 | 2007-04-09 | 401.91 |
| 30 | 2454598 | 2008-05-11 | 401.64 |
| 31 | 2454984 | 2009-06-01 | 402.59 |
| 32 | 2455377 | 2010-06-29 | 403.74 |
| 33 | 2455798 | 2011-08-24 | 404.55 |
| 34 | 2456192 | 2012-09-21 | 405.87 |
| 35 | 2456604 | 2013-11-07 | 407.69 |
| 36 | 2457024 | 2015-01-01 | 410.08 |
| 37 | 2457442 | 2016-02-23 | 411.45 |
| 38 | 2457841 | 2017-03-28 | 411.97 |
| 39 | 2458240 | 2018-05-01 | 413.15 |
| 40 | 2458660 | 2019-06-25 | 413.18 |
| 41 | 2459087 | 2020-08-25 | 413.15 |
| 42 | 2459499 | 2021-10-11 | 413.82 |
| 43 | 2459912 | 2022-11-28 | 415.86 |
| 44 | 2460328 | 2024-01-18 | 417.37 |
| E | Cycle number from the GCVS4 epoch. |
| O (JD) | Julian date at observed time for maximum. |
| O (Dat) | Same as above, expressed as date. |
| Period | Calculated mean period at cycle number E. |