| E | O (JD) | O (dat) | Period |
| -79 | 2412835 | 1894-01-06 | 384.14 |
| -78 | 2413236 | 1895-02-11 | 384.25 |
| -77 | 2413612 | 1896-02-22 | 384.11 |
| -76 | 2413975 | 1897-02-19 | 385.23 |
| -75 | 2414380 | 1898-03-31 | 385.88 |
| -74 | 2414765 | 1899-04-20 | 385.5 |
| -73 | 2415146 | 1900-05-06 | 385.24 |
| -72 | 2415528 | 1901-05-23 | 387.11 |
| -71 | 2415930 | 1902-06-29 | 388.55 |
| -69 | 2416701 | 1904-08-08 | 389.24 |
| -68 | 2417072 | 1905-08-14 | 390.78 |
| -67 | 2417459 | 1906-09-05 | 392.93 |
| -66 | 2417879 | 1907-10-30 | 394.62 |
| -65 | 2418270 | 1908-11-24 | 396.32 |
| -64 | 2418669 | 1909-12-28 | 398.6 |
| -63 | 2419066 | 1911-01-29 | 399.06 |
| -62 | 2419477 | 1912-03-15 | 398.78 |
| -61 | 2419869 | 1913-04-11 | 397.11 |
| -60 | 2420273 | 1914-05-20 | 396.53 |
| -59 | 2420665 | 1915-06-16 | 395.58 |
| -58 | 2421049 | 1916-07-04 | 394.64 |
| -57 | 2421457 | 1917-08-16 | 394.05 |
| -56 | 2421839 | 1918-09-02 | 394.16 |
| -55 | 2422235 | 1919-10-03 | 394.25 |
| -54 | 2422629 | 1920-10-31 | 394.35 |
| -53 | 2423022 | 1921-11-28 | 394.05 |
| -52 | 2423424 | 1923-01-04 | 393.28 |
| -51 | 2423818 | 1924-02-02 | 392.85 |
| -50 | 2424215 | 1925-03-05 | 392.21 |
| -49 | 2424600 | 1926-03-25 | 391.55 |
| -48 | 2424986 | 1927-04-15 | 391.35 |
| -47 | 2425379 | 1928-05-12 | 389.97 |
| -46 | 2425763 | 1929-05-31 | 389.3 |
| -45 | 2426161 | 1930-07-03 | 388.71 |
| -44 | 2426550 | 1931-07-27 | 389.12 |
| -43 | 2426950 | 1932-08-30 | 389.43 |
| -42 | 2427317 | 1933-09-01 | 389.99 |
| -41 | 2427709 | 1934-09-28 | 390.84 |
| -40 | 2428095 | 1935-10-19 | 391.41 |
| -39 | 2428496 | 1936-11-23 | 392.06 |
| -38 | 2428888 | 1937-12-20 | 393.23 |
| -37 | 2429288 | 1939-01-24 | 394.58 |
| -36 | 2429683 | 1940-02-23 | 394.89 |
| -35 | 2430077 | 1941-03-23 | 395.65 |
| -34 | 2430464 | 1942-04-14 | 396.29 |
| -33 | 2430869 | 1943-05-24 | 397.06 |
| -32 | 2431257 | 1944-06-15 | 397.97 |
| -31 | 2431655 | 1945-07-18 | 398.69 |
| -30 | 2432062 | 1946-08-29 | 399.47 |
| -29 | 2432467 | 1947-10-08 | 399.97 |
| -28 | 2432863 | 1948-11-07 | 399.83 |
| -27 | 2433269 | 1949-12-18 | 399.6 |
| -26 | 2433661 | 1951-01-14 | 398.58 |
| -25 | 2434063 | 1952-02-20 | 397 |
| -24 | 2434460 | 1953-03-23 | 395.95 |
| -23 | 2434858 | 1954-04-25 | 395.07 |
| -22 | 2435249 | 1955-05-21 | 394.56 |
| -21 | 2435642 | 1956-06-17 | 395.26 |
| -20 | 2436029 | 1957-07-09 | 394.68 |
| -19 | 2436427 | 1958-08-11 | 394.98 |
| -18 | 2436818 | 1959-09-06 | 395.31 |
| -17 | 2437221 | 1960-10-13 | 395.65 |
| -16 | 2437632 | 1961-11-28 | 395.24 |
| -15 | 2438006 | 1962-12-07 | 394.7 |
| -14 | 2438412 | 1964-01-17 | 393.86 |
| -13 | 2438806 | 1965-02-14 | 392.89 |
| -12 | 2439198 | 1966-03-13 | 391.36 |
| -11 | 2439580 | 1967-03-30 | 390.55 |
| -10 | 2439972 | 1968-04-25 | 390.53 |
| -9 | 2440367 | 1969-05-25 | 390.33 |
| -8 | 2440754 | 1970-06-16 | 390.91 |
| -7 | 2441138 | 1971-07-05 | 391.55 |
| -6 | 2441534 | 1972-08-04 | 391.98 |
| -5 | 2441921 | 1973-08-26 | 392.45 |
| -4 | 2442326 | 1974-10-05 | 392.51 |
| -3 | 2442720 | 1975-11-03 | 392.52 |
| -2 | 2443110 | 1976-11-27 | 392.71 |
| -1 | 2443496 | 1977-12-18 | 392.94 |
| 0 | 2443898 | 1979-01-24 | 392.91 |
| 1 | 2444282 | 1980-02-12 | 392.86 |
| 2 | 2444669 | 1981-03-05 | 393.3 |
| 3 | 2445069 | 1982-04-09 | 393.69 |
| 4 | 2445472 | 1983-05-17 | 393.85 |
| 5 | 2445858 | 1984-06-06 | 394.31 |
| 6 | 2446258 | 1985-07-11 | 394.89 |
| 7 | 2446650 | 1986-08-07 | 394.64 |
| 8 | 2447041 | 1987-09-02 | 393.82 |
| 9 | 2447432 | 1988-09-27 | 392.98 |
| 10 | 2447840 | 1989-11-09 | 393 |
| 11 | 2448229 | 1990-12-03 | 392.65 |
| 12 | 2448616 | 1991-12-25 | 392.51 |
| 13 | 2449006 | 1993-01-18 | 392.4 |
| 14 | 2449393 | 1994-02-09 | 392.03 |
| 15 | 2449793 | 1995-03-16 | 390.86 |
| 16 | 2450186 | 1996-04-12 | 392.1 |
| 17 | 2450576 | 1997-05-07 | 392.24 |
| 18 | 2450970 | 1998-06-05 | 392.17 |
| 19 | 2451359 | 1999-06-29 | 392.48 |
| 20 | 2451736 | 2000-07-10 | 391.8 |
| 21 | 2452160 | 2001-09-07 | 391.92 |
| 22 | 2452533 | 2002-09-15 | 391.95 |
| 23 | 2452925 | 2003-10-12 | 391.78 |
| 24 | 2453327 | 2004-11-17 | 391.26 |
| 25 | 2453705 | 2005-11-30 | 390.84 |
| 26 | 2454105 | 2007-01-04 | 389.39 |
| 27 | 2454494 | 2008-01-28 | 389.74 |
| 28 | 2454883 | 2009-02-20 | 389.06 |
| 29 | 2455264 | 2010-03-08 | 388.53 |
| 30 | 2455658 | 2011-04-06 | 388.42 |
| 31 | 2456043 | 2012-04-25 | 387.77 |
| 32 | 2456435 | 2013-05-22 | 387.06 |
| 33 | 2456820 | 2014-06-11 | 387.06 |
| 34 | 2457210 | 2015-07-06 | 387.18 |
| 35 | 2457594 | 2016-07-24 | 387.22 |
| 36 | 2457982 | 2017-08-16 | 387.45 |
| 37 | 2458356 | 2018-08-25 | 387.38 |
| 38 | 2458755 | 2019-09-28 | 387.62 |
| 39 | 2459143 | 2020-10-20 | 387.81 |
| 40 | 2459536 | 2021-11-17 | 388.54 |
| 41 | 2459922 | 2022-12-08 | 389.37 |
| 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. |