| E | O (JD) | O (dat) | Period |
| -124 | 2414283 | 1897-12-24 | 320.8 |
| -123 | 2414639 | 1898-12-15 | 319 |
| -122 | 2414941 | 1899-10-13 | 314.69 |
| -121 | 2415249 | 1900-08-17 | 317.45 |
| -120 | 2415580 | 1901-07-14 | 318.11 |
| -119 | 2415890 | 1902-05-20 | 316.67 |
| -116 | 2416819 | 1904-12-04 | 317.67 |
| -115 | 2417164 | 1905-11-14 | 316.94 |
| -114 | 2417484 | 1906-09-30 | 316.22 |
| -113 | 2417796 | 1907-08-08 | 316.31 |
| -112 | 2418112 | 1908-06-19 | 311.21 |
| -111 | 2418422 | 1909-04-25 | 304.43 |
| -110 | 2418740 | 1910-03-09 | 304.43 |
| -109 | 2419030 | 1910-12-24 | 304.75 |
| -108 | 2419310 | 1911-09-30 | 303.17 |
| -107 | 2419600 | 1912-07-16 | 302.39 |
| -106 | 2419942 | 1913-06-23 | 303.33 |
| -103 | 2420842 | 1915-12-10 | 305.53 |
| -102 | 2421149 | 1916-10-12 | 307.35 |
| -101 | 2421456 | 1917-08-15 | 306.62 |
| -100 | 2421774 | 1918-06-29 | 305.8 |
| -98 | 2422371 | 1920-02-16 | 308.82 |
| -97 | 2422686 | 1920-12-27 | 309.96 |
| -95 | 2423295 | 1922-08-28 | 310.15 |
| -94 | 2423605 | 1923-07-04 | 311.8 |
| -89 | 2425180 | 1927-10-26 | 313 |
| -88 | 2425484 | 1928-08-25 | 313.41 |
| -87 | 2425810 | 1929-07-17 | 314 |
| -86 | 2426130 | 1930-06-02 | 313.25 |
| -82 | 2427378 | 1933-11-01 | 312.65 |
| -81 | 2427692 | 1934-09-11 | 312.5 |
| -80 | 2428000 | 1935-07-16 | 311.95 |
| -79 | 2428303 | 1936-05-14 | 311.18 |
| -78 | 2428614 | 1937-03-21 | 310.07 |
| -77 | 2428930 | 1938-01-31 | 310.79 |
| -76 | 2429249 | 1938-12-16 | 311.5 |
| -75 | 2429549 | 1939-10-12 | 311 |
| -74 | 2429862 | 1940-08-20 | 311.43 |
| -73 | 2430181 | 1941-07-05 | 312.71 |
| -72 | 2430483 | 1942-05-03 | 313.71 |
| -71 | 2430788 | 1943-03-04 | 314.79 |
| -70 | 2431116 | 1944-01-26 | 314.93 |
| -69 | 2431441 | 1944-12-16 | 314.71 |
| -68 | 2431749 | 1945-10-20 | 315.21 |
| -67 | 2432069 | 1946-09-05 | 314.29 |
| -66 | 2432383 | 1947-07-16 | 312.57 |
| -65 | 2432687 | 1948-05-15 | 311.64 |
| -64 | 2432997 | 1949-03-21 | 310.71 |
| -63 | 2433307 | 1950-01-25 | 310.57 |
| -62 | 2433626 | 1950-12-10 | 311.14 |
| -61 | 2433927 | 1951-10-07 | 311.71 |
| -60 | 2434241 | 1952-08-16 | 312.14 |
| -59 | 2434559 | 1953-06-30 | 311.71 |
| -58 | 2434867 | 1954-05-04 | 310.93 |
| -57 | 2435181 | 1955-03-14 | 311.29 |
| -56 | 2435493 | 1956-01-20 | 312.07 |
| -55 | 2435804 | 1956-11-26 | 312.21 |
| -54 | 2436102 | 1957-09-20 | 311.86 |
| -53 | 2436424 | 1958-08-08 | 312.71 |
| -52 | 2436745 | 1959-06-25 | 312.71 |
| -51 | 2437052 | 1960-04-27 | 312.71 |
| -50 | 2437362 | 1961-03-03 | 313.21 |
| -49 | 2437690 | 1962-01-25 | 312.21 |
| -48 | 2437985 | 1962-11-16 | 311.79 |
| -47 | 2438299 | 1963-09-26 | 311.14 |
| -46 | 2438612 | 1964-08-04 | 309.21 |
| -45 | 2438928 | 1965-06-16 | 310.36 |
| -44 | 2439234 | 1966-04-18 | 313.57 |
| -43 | 2439536 | 1967-02-14 | 313.57 |
| -42 | 2439845 | 1967-12-20 | 312.43 |
| -41 | 2440175 | 1968-11-14 | 312.36 |
| -40 | 2440499 | 1969-10-04 | 315.43 |
| -39 | 2440802 | 1970-08-03 | 318.14 |
| -38 | 2441112 | 1971-06-09 | 316.71 |
| -37 | 2441423 | 1972-04-15 | 314.79 |
| -36 | 2441763 | 1973-03-21 | 314.71 |
| -35 | 2442072 | 1974-01-24 | 315 |
| -34 | 2442382 | 1974-11-30 | 315.07 |
| -33 | 2442699 | 1975-10-13 | 311.64 |
| -32 | 2443008 | 1976-08-17 | 309 |
| -31 | 2443316 | 1977-06-21 | 309.71 |
| -30 | 2443630 | 1978-05-01 | 309.14 |
| -29 | 2443919 | 1979-02-14 | 308.5 |
| -28 | 2444242 | 1980-01-03 | 308.57 |
| -27 | 2444548 | 1980-11-04 | 308.29 |
| -26 | 2444861 | 1981-09-13 | 309.21 |
| -25 | 2445165 | 1982-07-14 | 310 |
| -24 | 2445479 | 1983-05-24 | 309.07 |
| -23 | 2445783 | 1984-03-23 | 308.79 |
| -22 | 2446095 | 1985-01-29 | 309.07 |
| -21 | 2446406 | 1985-12-06 | 309.71 |
| -20 | 2446711 | 1986-10-07 | 310.5 |
| -19 | 2447021 | 1987-08-13 | 311.36 |
| -18 | 2447332 | 1988-06-19 | 311.36 |
| -17 | 2447648 | 1989-05-01 | 312.5 |
| -16 | 2447961 | 1990-03-10 | 313.64 |
| -15 | 2448276 | 1991-01-19 | 313.36 |
| -14 | 2448584 | 1991-11-23 | 312.14 |
| -13 | 2448908 | 1992-10-12 | 311.64 |
| -12 | 2449215 | 1993-08-15 | 311.64 |
| -11 | 2449525 | 1994-06-21 | 312.21 |
| -10 | 2449825 | 1995-04-17 | 312.14 |
| -9 | 2450147 | 1996-03-04 | 310.86 |
| -8 | 2450453 | 1997-01-04 | 311.29 |
| -7 | 2450778 | 1997-11-25 | 312.79 |
| -6 | 2451084 | 1998-09-27 | 312.29 |
| -5 | 2451391 | 1999-07-31 | 312.14 |
| -4 | 2451707 | 2000-06-11 | 312 |
| -3 | 2452022 | 2001-04-22 | 310.86 |
| -2 | 2452322 | 2002-02-16 | 311.36 |
| -1 | 2452648 | 2003-01-08 | 311.79 |
| 0 | 2452951 | 2003-11-07 | 311.5 |
| 1 | 2453263 | 2004-09-14 | 311.71 |
| 2 | 2453571 | 2005-07-19 | 311.14 |
| 3 | 2453892 | 2006-06-05 | 310.07 |
| 4 | 2454198 | 2007-04-07 | 310.93 |
| 5 | 2454510 | 2008-02-13 | 311.64 |
| 6 | 2454816 | 2008-12-15 | 311.21 |
| 7 | 2455124 | 2009-10-19 | 310.79 |
| 8 | 2455443 | 2010-09-03 | 311.29 |
| 9 | 2455754 | 2011-07-11 | 310.79 |
| 10 | 2456066 | 2012-05-18 | 311 |
| 11 | 2456375 | 2013-03-23 | 311.21 |
| 12 | 2456691 | 2014-02-02 | 310.71 |
| 13 | 2456986 | 2014-11-24 | 310.79 |
| 14 | 2457308 | 2015-10-12 | 311.36 |
| 15 | 2457616 | 2016-08-15 | 311.5 |
| 16 | 2457931 | 2017-06-26 | 311.57 |
| 17 | 2458240 | 2018-05-01 | 311.79 |
| 18 | 2458560 | 2019-03-17 | 311.64 |
| 19 | 2458867 | 2020-01-18 | 311.81 |
| 20 | 2459172 | 2020-11-18 | 311.91 |
| 21 | 2459487 | 2021-09-29 | 310.5 |
| 22 | 2459800 | 2022-08-08 | 308.6 |
| 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. |