| E | O (JD) | O (dat) | Period |
| -68 | 2416170 | 1903-02-24 | 194.4 |
| -66 | 2416575 | 1904-04-04 | 193.43 |
| -64 | 2416960 | 1905-04-24 | 194 |
| -60 | 2417735 | 1907-06-08 | 194.01 |
| -58 | 2418120 | 1908-06-27 | 194.19 |
| -55 | 2418705 | 1910-02-02 | 194.24 |
| -51 | 2419460 | 1912-02-27 | 193.91 |
| -45 | 2420650 | 1915-06-01 | 193.69 |
| -43 | 2421030 | 1916-06-15 | 193.4 |
| -42 | 2421235 | 1917-01-06 | 193.23 |
| -40 | 2421620 | 1918-01-26 | 193.14 |
| -38 | 2421990 | 1919-01-31 | 192.93 |
| -37 | 2422170 | 1919-07-30 | 192.26 |
| -34 | 2422750 | 1921-03-01 | 192.54 |
| -30 | 2423530 | 1923-04-20 | 192.75 |
| -28 | 2423925 | 1924-05-19 | 193.34 |
| -26 | 2424300 | 1925-05-29 | 193.95 |
| -24 | 2424690 | 1926-06-23 | 194.21 |
| -23 | 2424890 | 1927-01-09 | 194.66 |
| -20 | 2425470 | 1928-08-11 | 194.31 |
| -19 | 2425670 | 1929-02-27 | 194.58 |
| -17 | 2426055 | 1930-03-19 | 195.01 |
| -15 | 2426440 | 1931-04-08 | 194.93 |
| -13 | 2426850 | 1932-05-22 | 195.08 |
| -11 | 2427210 | 1933-05-17 | 195.27 |
| -9 | 2427620 | 1934-07-01 | 195.15 |
| -8 | 2427815 | 1935-01-12 | 195.08 |
| -7 | 2428005 | 1935-07-21 | 195.15 |
| -6 | 2428210 | 1936-02-11 | 195.15 |
| -5 | 2428400 | 1936-08-19 | 195.3 |
| -4 | 2428590 | 1937-02-25 | 194.85 |
| -2 | 2428975 | 1938-03-17 | 194.68 |
| 0 | 2429375 | 1939-04-21 | 194.58 |
| 2 | 2429770 | 1940-05-20 | 194.63 |
| 4 | 2430145 | 1941-05-30 | 194.71 |
| 6 | 2430545 | 1942-07-04 | 194.54 |
| 7 | 2430730 | 1943-01-05 | 193.97 |
| 8 | 2430925 | 1943-07-19 | 193.53 |
| 9 | 2431130 | 1944-02-09 | 193.24 |
| 10 | 2431315 | 1944-08-12 | 193.38 |
| 11 | 2431503 | 1945-02-16 | 192.97 |
| 12 | 2431690 | 1945-08-22 | 193.02 |
| 13 | 2431899 | 1946-03-19 | 193.25 |
| 15 | 2432278 | 1947-04-02 | 193.02 |
| 17 | 2432665 | 1948-04-23 | 193.48 |
| 19 | 2433051 | 1949-05-14 | 193.55 |
| 21 | 2433435 | 1950-06-02 | 193.46 |
| 22 | 2433640 | 1950-12-24 | 193.5 |
| 23 | 2433820 | 1951-06-22 | 193.6 |
| 26 | 2434410 | 1953-02-01 | 193.6 |
| 58 | 2440600 | 1970-01-13 | 193.62 |
| 60 | 2440980 | 1971-01-28 | 193.63 |
| 62 | 2441380 | 1972-03-03 | 193.68 |
| 64 | 2441770 | 1973-03-28 | 193.8 |
| 66 | 2442151 | 1974-04-13 | 193.78 |
| 68 | 2442540 | 1975-05-07 | 194.37 |
| 70 | 2442930 | 1976-05-31 | 194.54 |
| 72 | 2443330 | 1977-07-05 | 194.27 |
| 73 | 2443515 | 1978-01-06 | 194.35 |
| 74 | 2443710 | 1978-07-20 | 194.9 |
| 77 | 2444285 | 1980-02-15 | 194.69 |
| 79 | 2444686 | 1981-03-22 | 194.69 |
| 81 | 2445069 | 1982-04-09 | 194.62 |
| 83 | 2445459 | 1983-05-04 | 194.77 |
| 85 | 2445865 | 1984-06-13 | 194.85 |
| 86 | 2446040 | 1984-12-05 | 195.22 |
| 87 | 2446243 | 1985-06-26 | 195.06 |
| 88 | 2446435 | 1986-01-04 | 195.43 |
| 89 | 2446625 | 1986-07-13 | 195.46 |
| 90 | 2446826 | 1987-01-30 | 194.81 |
| 92 | 2447223 | 1988-03-02 | 194.81 |
| 94 | 2447610 | 1989-03-24 | 194.4 |
| 96 | 2448003 | 1990-04-21 | 194.28 |
| 98 | 2448393 | 1991-05-16 | 194.13 |
| 100 | 2448765 | 1992-05-22 | 193.59 |
| 101 | 2448960 | 1992-12-03 | 192.86 |
| 102 | 2449155 | 1993-06-16 | 192.26 |
| 103 | 2449351 | 1993-12-29 | 192.19 |
| 104 | 2449547 | 1994-07-13 | 192.53 |
| 105 | 2449735 | 1995-01-17 | 192.95 |
| 106 | 2449920 | 1995-07-21 | 193.15 |
| 107 | 2450108 | 1996-01-25 | 193.53 |
| 109 | 2450508 | 1997-02-28 | 193.91 |
| 111 | 2450893 | 1998-03-20 | 194.06 |
| 113 | 2451276 | 1999-04-07 | 194.51 |
| 115 | 2451670 | 2000-05-05 | 194.8 |
| 117 | 2452063 | 2001-06-02 | 194.93 |
| 118 | 2452260 | 2001-12-16 | 194.86 |
| 120 | 2452640 | 2002-12-31 | 195.15 |
| 122 | 2453036 | 2004-01-31 | 195.17 |
| 124 | 2453425 | 2005-02-23 | 194.65 |
| 126 | 2453817 | 2006-03-22 | 194.44 |
| 128 | 2454207 | 2007-04-16 | 194.73 |
| 130 | 2454600 | 2008-05-13 | 194.68 |
| 132 | 2454985 | 2009-06-02 | 194.59 |
| 134 | 2455360 | 2010-06-12 | 194.46 |
| 135 | 2455560 | 2010-12-29 | 194.54 |
| 137 | 2455967 | 2012-02-09 | 194.27 |
| 139 | 2456340 | 2013-02-16 | 194.12 |
| 141 | 2456738 | 2014-03-21 | 193.99 |
| 142 | 2456925 | 2014-09-24 | 193.92 |
| 143 | 2457129 | 2015-04-16 | 193.21 |
| 145 | 2457501 | 2016-04-22 | 192.81 |
| 147 | 2457892 | 2017-05-18 | 192.86 |
| 148 | 2458080 | 2017-11-22 | 192.56 |
| 149 | 2458278 | 2018-06-08 | 193.15 |
| 150 | 2458465 | 2018-12-12 | 193.39 |
| 151 | 2458668 | 2019-07-03 | 194.2 |
| 152 | 2458851 | 2020-01-02 | 194.28 |
| 153 | 2459050 | 2020-07-19 | 194.58 |
| 154 | 2459254 | 2021-02-08 | 194.58 |
| 155 | 2459445 | 2021-08-18 | 194.95 |
| 156 | 2459635 | 2022-02-24 | 194.61 |
| 157 | 2459830 | 2022-09-07 | 195.46 |
| 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. |