| E | O (JD) | O (dat) | Period |
| -91 | 2426351 | 1931-01-09 | 179.72 |
| -73 | 2429624 | 1939-12-26 | 179.2 |
| -71 | 2429960 | 1940-11-26 | 179.46 |
| -69 | 2430327 | 1941-11-28 | 180.38 |
| -67 | 2430683 | 1942-11-19 | 180.07 |
| -65 | 2431032 | 1943-11-03 | 179.29 |
| -63 | 2431407 | 1944-11-12 | 178.96 |
| -61 | 2431762 | 1945-11-02 | 178.75 |
| -59 | 2432136 | 1946-11-11 | 180.21 |
| -57 | 2432468 | 1947-10-09 | 181.39 |
| -55 | 2432830 | 1948-10-05 | 180.68 |
| -53 | 2433185 | 1949-09-25 | 179.96 |
| -51 | 2433576 | 1950-10-21 | 180.4 |
| -49 | 2433942 | 1951-10-22 | 180.46 |
| -47 | 2434286 | 1952-09-30 | 180.25 |
| -45 | 2434651 | 1953-09-30 | 179.8 |
| -16 | 2439875 | 1968-01-19 | 179.32 |
| -15 | 2440040 | 1968-07-02 | 179.68 |
| -12 | 2440575 | 1969-12-19 | 179.91 |
| -10 | 2440930 | 1970-12-09 | 179.89 |
| -8 | 2441292 | 1971-12-06 | 180.55 |
| -6 | 2441670 | 1972-12-18 | 181.59 |
| -4 | 2442020 | 1973-12-03 | 182.78 |
| -2 | 2442400 | 1974-12-18 | 183.48 |
| 0 | 2442751 | 1975-12-04 | 183.13 |
| 2 | 2443130 | 1976-12-17 | 182.96 |
| 3 | 2443310 | 1977-06-15 | 182.13 |
| 4 | 2443499 | 1977-12-21 | 181.5 |
| 6 | 2443858 | 1978-12-15 | 181.5 |
| 8 | 2444223 | 1979-12-15 | 180.96 |
| 10 | 2444568 | 1980-11-24 | 181.04 |
| 12 | 2444939 | 1981-11-30 | 181.21 |
| 14 | 2445298 | 1982-11-24 | 181.14 |
| 16 | 2445666 | 1983-11-27 | 181.54 |
| 18 | 2446031 | 1984-11-26 | 181.82 |
| 20 | 2446400 | 1985-11-30 | 181.68 |
| 22 | 2446753 | 1986-11-18 | 181.57 |
| 24 | 2447121 | 1987-11-21 | 181.11 |
| 26 | 2447477 | 1988-11-11 | 180.82 |
| 28 | 2447847 | 1989-11-16 | 181.14 |
| 30 | 2448201 | 1990-11-05 | 181.18 |
| 32 | 2448567 | 1991-11-06 | 180.64 |
| 34 | 2448927 | 1992-10-31 | 180.82 |
| 36 | 2449298 | 1993-11-06 | 181.29 |
| 38 | 2449649 | 1994-10-23 | 181.61 |
| 40 | 2450007 | 1995-10-16 | 181.68 |
| 42 | 2450380 | 1996-10-23 | 181 |
| 44 | 2450744 | 1997-10-22 | 180.5 |
| 46 | 2451109 | 1998-10-22 | 181.21 |
| 48 | 2451472 | 1999-10-20 | 181.54 |
| 50 | 2451821 | 2000-10-03 | 181.75 |
| 52 | 2452180 | 2001-09-27 | 182.14 |
| 54 | 2452550 | 2002-10-02 | 181.96 |
| 56 | 2452920 | 2003-10-07 | 182.32 |
| 58 | 2453293 | 2004-10-14 | 182.79 |
| 60 | 2453660 | 2005-10-16 | 182.11 |
| 62 | 2454016 | 2006-10-07 | 181.96 |
| 64 | 2454382 | 2007-10-08 | 182.04 |
| 66 | 2454737 | 2008-09-27 | 181.32 |
| 68 | 2455092 | 2009-09-17 | 181.56 |
| 70 | 2455473 | 2010-10-03 | 181.76 |
| 72 | 2455837 | 2011-10-02 | 181.87 |
| 74 | 2456193 | 2012-09-22 | 183.14 |
| 75 | 2456385 | 2013-04-02 | 182.7 |
| 76 | 2456557 | 2013-09-21 | 181.65 |
| 77 | 2456745 | 2014-03-28 | 181.53 |
| 78 | 2456930 | 2014-09-29 | 180.78 |
| 80 | 2457289 | 2015-09-23 | 181 |
| 82 | 2457654 | 2016-09-22 | 180.85 |
| 83 | 2457825 | 2017-03-12 | 180.5 |
| 84 | 2458007 | 2017-09-10 | 180.84 |
| 86 | 2458374 | 2018-09-12 | 180.47 |
| 87 | 2458545 | 2019-03-02 | 181.37 |
| 88 | 2458740 | 2019-09-13 | 181.81 |
| 89 | 2458915 | 2020-03-06 | 181.33 |
| 90 | 2459096 | 2020-09-03 | 182.36 |
| 91 | 2459285 | 2021-03-11 | 182.16 |
| 92 | 2459456 | 2021-08-29 | 181.23 |
| 93 | 2459645 | 2022-03-06 | 182.58 |
| 94 | 2459827 | 2022-09-04 | 182.9 |
| 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. |