| E | O (JD) | O (dat) | Period |
| -101 | 2413840 | 1896-10-07 | 262.86 |
| -94 | 2415680 | 1901-10-22 | 262.97 |
| -92 | 2416220 | 1903-04-15 | 262.94 |
| -90 | 2416740 | 1904-09-16 | 263.17 |
| -89 | 2417000 | 1905-06-03 | 263.38 |
| -86 | 2417790 | 1907-08-02 | 263.23 |
| -82 | 2418840 | 1910-06-17 | 263 |
| -61 | 2424370 | 1925-08-07 | 263.19 |
| -60 | 2424640 | 1926-05-04 | 263.4 |
| -57 | 2425423 | 1928-06-25 | 263.3 |
| -54 | 2426210 | 1930-08-21 | 263.34 |
| -53 | 2426480 | 1931-05-18 | 263.66 |
| -49 | 2427538 | 1934-04-10 | 263.53 |
| -47 | 2428050 | 1935-09-04 | 263.1 |
| -46 | 2428327 | 1936-06-07 | 263.03 |
| -43 | 2429120 | 1938-08-09 | 263 |
| -42 | 2429376 | 1939-04-22 | 263.52 |
| -39 | 2430150 | 1941-06-04 | 263.75 |
| -35 | 2431220 | 1944-05-09 | 263.12 |
| -33 | 2431740 | 1945-10-11 | 263.46 |
| -32 | 2432017 | 1946-07-15 | 263.77 |
| -29 | 2432800 | 1948-09-05 | 263.38 |
| -28 | 2433067 | 1949-05-30 | 263.26 |
| -25 | 2433860 | 1951-08-01 | 263.11 |
| -7 | 2438591 | 1964-07-14 | 262.88 |
| -3 | 2439635 | 1967-05-24 | 262.81 |
| -2 | 2439910 | 1968-02-23 | 262.56 |
| -1 | 2440160 | 1968-10-30 | 262.62 |
| 0 | 2440430 | 1969-07-27 | 262.95 |
| 1 | 2440680 | 1970-04-03 | 263.33 |
| 3 | 2441213 | 1971-09-18 | 263.34 |
| 4 | 2441480 | 1972-06-11 | 263.16 |
| 6 | 2442005 | 1973-11-18 | 263.75 |
| 7 | 2442280 | 1974-08-20 | 263.52 |
| 8 | 2442530 | 1975-04-27 | 262.74 |
| 10 | 2443060 | 1976-10-08 | 262.89 |
| 11 | 2443325 | 1977-06-30 | 261.31 |
| 12 | 2443575 | 1978-03-07 | 261.55 |
| 14 | 2444110 | 1979-08-24 | 262.68 |
| 15 | 2444370 | 1980-05-10 | 262.37 |
| 17 | 2444880 | 1981-10-02 | 263.5 |
| 18 | 2445161 | 1982-07-10 | 264.25 |
| 19 | 2445420 | 1983-03-26 | 264.35 |
| 21 | 2445950 | 1984-09-06 | 265.63 |
| 22 | 2446220 | 1985-06-03 | 265.74 |
| 24 | 2446750 | 1986-11-15 | 265.75 |
| 25 | 2447017 | 1987-08-09 | 266.57 |
| 26 | 2447280 | 1988-04-28 | 266.09 |
| 28 | 2447810 | 1989-10-10 | 265.17 |
| 29 | 2448086 | 1990-07-13 | 264.79 |
| 32 | 2448882 | 1992-09-16 | 264.28 |
| 33 | 2449142 | 1993-06-03 | 263.52 |
| 36 | 2449927 | 1995-07-28 | 262.63 |
| 37 | 2450195 | 1996-04-21 | 261.32 |
| 39 | 2450709 | 1997-09-17 | 260.45 |
| 40 | 2450969 | 1998-06-04 | 260.67 |
| 41 | 2451230 | 1999-02-20 | 260.5 |
| 42 | 2451487 | 1999-11-04 | 260.2 |
| 43 | 2451746 | 2000-07-20 | 261.36 |
| 44 | 2452015 | 2001-04-15 | 262.22 |
| 45 | 2452275 | 2001-12-31 | 263.14 |
| 46 | 2452532 | 2002-09-14 | 264.5 |
| 47 | 2452805 | 2003-06-14 | 265.14 |
| 48 | 2453065 | 2004-02-29 | 265.6 |
| 49 | 2453336 | 2004-11-26 | 266.26 |
| 50 | 2453600 | 2005-08-17 | 265.88 |
| 51 | 2453873 | 2006-05-17 | 265.94 |
| 53 | 2454401 | 2007-10-27 | 266.5 |
| 54 | 2454666 | 2008-07-18 | 265.81 |
| 55 | 2454925 | 2009-04-03 | 264.65 |
| 57 | 2455466 | 2010-09-26 | 264.04 |
| 58 | 2455732 | 2011-06-19 | 264 |
| 61 | 2456520 | 2013-08-15 | 263.49 |
| 63 | 2457040 | 2015-01-17 | 262.76 |
| 64 | 2457307 | 2015-10-11 | 262.55 |
| 65 | 2457568 | 2016-06-28 | 262.77 |
| 66 | 2457820 | 2017-03-07 | 263.4 |
| 67 | 2458089 | 2017-12-01 | 263.5 |
| 68 | 2458360 | 2018-08-29 | 263.57 |
| 69 | 2458622 | 2019-05-18 | 264.64 |
| 70 | 2458889 | 2020-02-09 | 265.07 |
| 71 | 2459147 | 2020-10-24 | 264.63 |
| 72 | 2459418 | 2021-07-22 | 263.94 |
| 73 | 2459675 | 2022-04-05 | 263.59 |
| 74 | 2459945 | 2022-12-31 | 262.9 |
| 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. |