| E | O (JD) | O (dat) | Period |
| -93 | 2413660 | 1896-04-10 | 296.22 |
| -92 | 2413960 | 1897-02-04 | 296.57 |
| -91 | 2414260 | 1897-12-01 | 296.22 |
| -87 | 2415432 | 1901-02-16 | 296.65 |
| -86 | 2415735 | 1901-12-16 | 296.86 |
| -85 | 2416035 | 1902-10-12 | 296.86 |
| -83 | 2416620 | 1904-05-19 | 297.52 |
| -82 | 2416930 | 1905-03-25 | 298.85 |
| -81 | 2417221 | 1906-01-10 | 298.9 |
| -80 | 2417530 | 1906-11-15 | 298.37 |
| -77 | 2418410 | 1909-04-13 | 297.89 |
| -76 | 2418734 | 1910-03-03 | 297.95 |
| -75 | 2419014 | 1910-12-08 | 298.7 |
| -74 | 2419310 | 1911-09-30 | 299.17 |
| -72 | 2419900 | 1913-05-12 | 298.73 |
| -71 | 2420210 | 1914-03-18 | 298.27 |
| -70 | 2420515 | 1915-01-17 | 298.38 |
| -69 | 2420810 | 1915-11-08 | 298.52 |
| -65 | 2422010 | 1919-02-20 | 297.83 |
| -64 | 2422300 | 1919-12-07 | 297.29 |
| -61 | 2423185 | 1922-05-10 | 297.19 |
| -60 | 2423488 | 1923-03-09 | 296.52 |
| -59 | 2423770 | 1923-12-16 | 296.41 |
| -58 | 2424090 | 1924-10-31 | 296.59 |
| -55 | 2424962 | 1927-03-22 | 297.04 |
| -54 | 2425271 | 1928-01-25 | 298.59 |
| -53 | 2425560 | 1928-11-09 | 299 |
| -50 | 2426450 | 1931-04-18 | 298.95 |
| -49 | 2426758 | 1932-02-20 | 299.41 |
| -48 | 2427069 | 1932-12-27 | 299.73 |
| -47 | 2427369 | 1933-10-23 | 300.52 |
| -44 | 2428260 | 1936-04-01 | 300.88 |
| -43 | 2428560 | 1937-01-26 | 300.89 |
| -42 | 2428865 | 1937-11-27 | 300.88 |
| -38 | 2430057 | 1941-03-03 | 301.57 |
| -37 | 2430372 | 1942-01-12 | 301.84 |
| -32 | 2431880 | 1946-02-28 | 301.38 |
| -31 | 2432186 | 1946-12-31 | 300.87 |
| -30 | 2432490 | 1947-10-31 | 300.13 |
| -26 | 2433687 | 1951-02-09 | 299.41 |
| -25 | 2433985 | 1951-12-04 | 298.64 |
| -16 | 2436671 | 1959-04-12 | 298 |
| -14 | 2437264 | 1960-11-25 | 297.58 |
| -13 | 2437563 | 1961-09-20 | 296.55 |
| -11 | 2438150 | 1963-04-30 | 295.76 |
| -10 | 2438446 | 1964-02-20 | 295.59 |
| -8 | 2439039 | 1965-10-05 | 295.43 |
| -5 | 2439902 | 1968-02-15 | 296.2 |
| -3 | 2440514 | 1969-10-19 | 296.97 |
| 0 | 2441402 | 1972-03-25 | 297.45 |
| 1 | 2441697 | 1973-01-14 | 298.61 |
| 5 | 2442902 | 1976-05-03 | 298.58 |
| 6 | 2443197 | 1977-02-22 | 298.25 |
| 7 | 2443509 | 1977-12-31 | 298.57 |
| 11 | 2444689 | 1981-03-25 | 298 |
| 12 | 2444983 | 1982-01-13 | 297.33 |
| 13 | 2445284 | 1982-11-10 | 297.04 |
| 16 | 2446175 | 1985-04-19 | 296.77 |
| 17 | 2446470 | 1986-02-08 | 297.65 |
| 18 | 2446765 | 1986-11-30 | 298.7 |
| 19 | 2447070 | 1987-10-01 | 299.12 |
| 21 | 2447657 | 1989-05-10 | 300 |
| 22 | 2447968 | 1990-03-17 | 301.15 |
| 23 | 2448273 | 1991-01-16 | 301.25 |
| 24 | 2448570 | 1991-11-09 | 301.48 |
| 27 | 2449475 | 1994-05-02 | 301.4 |
| 28 | 2449783 | 1995-03-06 | 300.41 |
| 29 | 2450077 | 1995-12-25 | 299.82 |
| 30 | 2450378 | 1996-10-21 | 298.86 |
| 33 | 2451275 | 1999-04-06 | 297.55 |
| 34 | 2451575 | 2000-01-31 | 297.05 |
| 35 | 2451864 | 2000-11-15 | 296.41 |
| 38 | 2452756 | 2003-04-26 | 295.29 |
| 39 | 2453048 | 2004-02-12 | 294.96 |
| 40 | 2453347 | 2004-12-07 | 295.09 |
| 43 | 2454222 | 2007-05-01 | 294.76 |
| 44 | 2454518 | 2008-02-21 | 294.25 |
| 45 | 2454821 | 2008-12-20 | 294 |
| 46 | 2455110 | 2009-10-05 | 294.39 |
| 48 | 2455700 | 2011-05-18 | 295.7 |
| 49 | 2455989 | 2012-03-02 | 295.5 |
| 50 | 2456286 | 2012-12-24 | 295.06 |
| 51 | 2456582 | 2013-10-16 | 295.82 |
| 53 | 2457185 | 2015-06-11 | 296.93 |
| 54 | 2457473 | 2016-03-25 | 297.18 |
| 55 | 2457769 | 2017-01-15 | 298.07 |
| 56 | 2458070 | 2017-11-12 | 298.67 |
| 57 | 2458370 | 2018-09-08 | 298.14 |
| 58 | 2458660 | 2019-06-25 | 299.14 |
| 59 | 2458977 | 2020-05-07 | 299.7 |
| 60 | 2459270 | 2021-02-24 | 299.26 |
| 61 | 2459562 | 2021-12-13 | 301.42 |
| 62 | 2459868 | 2022-10-15 | 303.71 |
| 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. |