| E | O (JD) | O (dat) | Period |
| -68 | 2416170 | 1903-02-24 | 194.21 |
| -66 | 2416575 | 1904-04-04 | 193.26 |
| -64 | 2416960 | 1905-04-24 | 193.26 |
| -60 | 2417735 | 1907-06-08 | 193.79 |
| -55 | 2418705 | 1910-02-02 | 193.5 |
| -51 | 2419460 | 1912-02-27 | 193.35 |
| -30 | 2423540 | 1923-04-30 | 193.52 |
| -28 | 2423925 | 1924-05-19 | 193.43 |
| -26 | 2424300 | 1925-05-29 | 193.91 |
| -19 | 2425670 | 1929-02-27 | 194.04 |
| -17 | 2426055 | 1930-03-19 | 193.82 |
| -15 | 2426440 | 1931-04-08 | 194.87 |
| -13 | 2426850 | 1932-05-22 | 195 |
| -11 | 2427210 | 1933-05-17 | 195.22 |
| -9 | 2427620 | 1934-07-01 | 195.68 |
| -8 | 2427815 | 1935-01-12 | 194.32 |
| -7 | 2428005 | 1935-07-21 | 195 |
| -6 | 2428210 | 1936-02-11 | 196.13 |
| -4 | 2428590 | 1937-02-25 | 194.83 |
| -2 | 2428975 | 1938-03-17 | 194.48 |
| 0 | 2429375 | 1939-04-21 | 194.3 |
| 2 | 2429770 | 1940-05-20 | 194.14 |
| 4 | 2430146 | 1941-05-31 | 194.67 |
| 6 | 2430536 | 1942-06-25 | 194.26 |
| 8 | 2430925 | 1943-07-19 | 193.33 |
| 11 | 2431505 | 1945-02-18 | 193.4 |
| 13 | 2431900 | 1946-03-20 | 193.72 |
| 15 | 2432278 | 1947-04-02 | 193.68 |
| 17 | 2432667 | 1948-04-25 | 193.54 |
| 19 | 2433051 | 1949-05-14 | 193.35 |
| 23 | 2433830 | 1951-07-02 | 193.43 |
| 26 | 2434410 | 1953-02-01 | 193.67 |
| 58 | 2440600 | 1970-01-13 | 193.65 |
| 60 | 2440980 | 1971-01-28 | 193.59 |
| 62 | 2441380 | 1972-03-03 | 193.6 |
| 64 | 2441770 | 1973-03-28 | 193.96 |
| 66 | 2442151 | 1974-04-13 | 195 |
| 68 | 2442540 | 1975-05-07 | 194.6 |
| 70 | 2442930 | 1976-05-31 | 193.8 |
| 72 | 2443330 | 1977-07-05 | 194.23 |
| 73 | 2443515 | 1978-01-06 | 194.77 |
| 74 | 2443710 | 1978-07-20 | 194.54 |
| 77 | 2444285 | 1980-02-15 | 194.77 |
| 79 | 2444686 | 1981-03-22 | 194.62 |
| 81 | 2445069 | 1982-04-09 | 194.54 |
| 83 | 2445459 | 1983-05-04 | 195.13 |
| 85 | 2445865 | 1984-06-13 | 194.72 |
| 86 | 2446040 | 1984-12-05 | 194.52 |
| 87 | 2446243 | 1985-06-26 | 195.61 |
| 88 | 2446435 | 1986-01-04 | 194.94 |
| 89 | 2446625 | 1986-07-13 | 195.16 |
| 90 | 2446826 | 1987-01-30 | 195.86 |
| 92 | 2447223 | 1988-03-02 | 194.78 |
| 94 | 2447610 | 1989-03-24 | 194.38 |
| 96 | 2448003 | 1990-04-21 | 194.33 |
| 98 | 2448393 | 1991-05-16 | 193.78 |
| 100 | 2448765 | 1992-05-22 | 193.57 |
| 101 | 2448960 | 1992-12-03 | 193.11 |
| 102 | 2449155 | 1993-06-16 | 191.71 |
| 103 | 2449351 | 1993-12-29 | 191.33 |
| 104 | 2449547 | 1994-07-13 | 192.73 |
| 105 | 2449735 | 1995-01-17 | 193.29 |
| 106 | 2449920 | 1995-07-21 | 192.79 |
| 107 | 2450108 | 1996-01-25 | 192.76 |
| 109 | 2450508 | 1997-02-28 | 193.52 |
| 111 | 2450893 | 1998-03-20 | 194.5 |
| 113 | 2451276 | 1999-04-07 | 194.88 |
| 115 | 2451670 | 2000-05-05 | 194.61 |
| 117 | 2452063 | 2001-06-02 | 194.61 |
| 118 | 2452260 | 2001-12-16 | 195.11 |
| 120 | 2452640 | 2002-12-31 | 195.31 |
| 122 | 2453036 | 2004-01-31 | 195.16 |
| 124 | 2453425 | 2005-02-23 | 194.89 |
| 126 | 2453817 | 2006-03-22 | 194.46 |
| 128 | 2454207 | 2007-04-16 | 194.23 |
| 130 | 2454600 | 2008-05-13 | 194.85 |
| 132 | 2454985 | 2009-06-02 | 194.81 |
| 134 | 2455360 | 2010-06-12 | 194.38 |
| 135 | 2455560 | 2010-12-29 | 194.24 |
| 137 | 2455967 | 2012-02-09 | 194.3 |
| 139 | 2456340 | 2013-02-16 | 194.77 |
| 141 | 2456738 | 2014-03-21 | 194.47 |
| 142 | 2456925 | 2014-09-24 | 193.26 |
| 143 | 2457129 | 2015-04-16 | 192.91 |
| 145 | 2457501 | 2016-04-22 | 192.89 |
| 147 | 2457892 | 2017-05-18 | 192.78 |
| 148 | 2458080 | 2017-11-22 | 192.5 |
| 149 | 2458278 | 2018-06-08 | 192.41 |
| 150 | 2458465 | 2018-12-12 | 194.07 |
| 151 | 2458668 | 2019-07-03 | 194.79 |
| 152 | 2458851 | 2020-01-02 | 194.43 |
| 153 | 2459050 | 2020-07-19 | 194.43 |
| 154 | 2459254 | 2021-02-08 | 194.4 |
| 155 | 2459445 | 2021-08-18 | 195.23 |
| 156 | 2459635 | 2022-02-24 | 196.85 |
| 157 | 2459830 | 2022-09-07 | 196.41 |
| 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. |