| E | O (JD) | O (dat) | Period |
| -144 | 2415019 | 1899-12-30 | 210.73 |
| -142 | 2415440 | 1901-02-24 | 210.16 |
| -139 | 2416065 | 1902-11-11 | 209.2 |
| -138 | 2416275 | 1903-06-09 | 209.64 |
| -137 | 2416490 | 1904-01-10 | 209.12 |
| -135 | 2416906 | 1905-03-01 | 208 |
| -133 | 2417320 | 1906-04-19 | 208.04 |
| -132 | 2417540 | 1906-11-25 | 207.58 |
| -128 | 2418356 | 1909-02-18 | 207.31 |
| -126 | 2418765 | 1910-04-03 | 207.09 |
| -123 | 2419400 | 1911-12-29 | 206.53 |
| -121 | 2419800 | 1913-02-01 | 207.29 |
| -119 | 2420230 | 1914-04-07 | 208.52 |
| -117 | 2420623 | 1915-05-05 | 208.79 |
| -114 | 2421259 | 1917-01-30 | 209.08 |
| -112 | 2421685 | 1918-04-01 | 209.42 |
| -111 | 2421900 | 1918-11-02 | 209.9 |
| -110 | 2422111 | 1919-06-01 | 210.24 |
| -109 | 2422316 | 1919-12-23 | 210.18 |
| -107 | 2422740 | 1921-02-19 | 210.09 |
| -100 | 2424200 | 1925-02-18 | 209.38 |
| -98 | 2424620 | 1926-04-14 | 209.5 |
| -95 | 2425260 | 1928-01-14 | 209.11 |
| -93 | 2425678 | 1929-03-07 | 208.06 |
| -91 | 2426080 | 1930-04-13 | 207.61 |
| -90 | 2426308 | 1930-11-27 | 206.11 |
| -88 | 2426694 | 1931-12-18 | 205.21 |
| -86 | 2427112 | 1933-02-08 | 206.07 |
| -84 | 2427521 | 1934-03-24 | 206.53 |
| -81 | 2428130 | 1935-11-23 | 207.28 |
| -79 | 2428554 | 1937-01-20 | 208.09 |
| -77 | 2428974 | 1938-03-16 | 207.72 |
| -74 | 2429610 | 1939-12-12 | 208.47 |
| -72 | 2430025 | 1941-01-30 | 208.79 |
| -70 | 2430440 | 1942-03-21 | 208 |
| -68 | 2430840 | 1943-04-25 | 207.37 |
| -67 | 2431065 | 1943-12-06 | 207.87 |
| -65 | 2431465 | 1945-01-09 | 208.42 |
| -63 | 2431887 | 1946-03-07 | 208.73 |
| -56 | 2433333 | 1950-02-20 | 208.79 |
| -42 | 2436280 | 1958-03-17 | 208.56 |
| -40 | 2436690 | 1959-05-01 | 208.57 |
| -39 | 2436905 | 1959-12-02 | 208.75 |
| -38 | 2437110 | 1960-06-24 | 208.43 |
| -35 | 2437725 | 1962-03-01 | 207.08 |
| -33 | 2438141 | 1963-04-21 | 207.08 |
| -31 | 2438560 | 1964-06-13 | 207.11 |
| -30 | 2438765 | 1965-01-04 | 207.32 |
| -28 | 2439175 | 1966-02-18 | 207.43 |
| -26 | 2439597 | 1967-04-16 | 207.61 |
| -24 | 2440010 | 1968-06-02 | 208.21 |
| -21 | 2440630 | 1970-02-12 | 208.75 |
| -19 | 2441044 | 1971-04-02 | 208.75 |
| -17 | 2441470 | 1972-06-01 | 208.7 |
| -16 | 2441685 | 1973-01-02 | 209.38 |
| -14 | 2442100 | 1974-02-21 | 210.24 |
| -12 | 2442517 | 1975-04-14 | 209.75 |
| -11 | 2442725 | 1975-11-08 | 208.62 |
| -10 | 2442940 | 1976-06-10 | 208.83 |
| -9 | 2443149 | 1977-01-05 | 208.88 |
| -7 | 2443560 | 1978-02-20 | 208.6 |
| -5 | 2443976 | 1979-04-12 | 208.42 |
| -2 | 2444612 | 1981-01-07 | 207.85 |
| 0 | 2445018 | 1982-02-17 | 207.56 |
| 2 | 2445439 | 1983-04-14 | 207.62 |
| 3 | 2445645 | 1983-11-06 | 207.04 |
| 4 | 2445848 | 1984-05-27 | 206.71 |
| 5 | 2446050 | 1984-12-15 | 207.32 |
| 7 | 2446469 | 1986-02-07 | 207.56 |
| 9 | 2446881 | 1987-03-26 | 208.16 |
| 10 | 2447090 | 1987-10-21 | 208.57 |
| 11 | 2447306 | 1988-05-24 | 208.57 |
| 12 | 2447514 | 1988-12-18 | 208.95 |
| 14 | 2447934 | 1990-02-11 | 209.11 |
| 16 | 2448344 | 1991-03-28 | 208.26 |
| 17 | 2448555 | 1991-10-25 | 207.62 |
| 18 | 2448765 | 1992-05-22 | 207.33 |
| 19 | 2448970 | 1992-12-13 | 207.05 |
| 21 | 2449383 | 1994-01-30 | 206.67 |
| 23 | 2449797 | 1995-03-20 | 206.21 |
| 24 | 2450005 | 1995-10-14 | 206.43 |
| 25 | 2450207 | 1996-05-03 | 206.95 |
| 26 | 2450412 | 1996-11-24 | 207.32 |
| 28 | 2450826 | 1998-01-12 | 207.78 |
| 30 | 2451244 | 1999-03-06 | 207.39 |
| 31 | 2451455 | 1999-10-03 | 207 |
| 32 | 2451664 | 2000-04-29 | 207.65 |
| 33 | 2451878 | 2000-11-29 | 207.73 |
| 34 | 2452067 | 2001-06-06 | 206.93 |
| 35 | 2452278 | 2002-01-03 | 205.79 |
| 36 | 2452490 | 2002-08-03 | 204.71 |
| 37 | 2452696 | 2003-02-25 | 205.57 |
| 38 | 2452900 | 2003-09-17 | 206.64 |
| 39 | 2453100 | 2004-04-04 | 206.07 |
| 40 | 2453308 | 2004-10-29 | 206.18 |
| 41 | 2453515 | 2005-05-24 | 206.33 |
| 42 | 2453723 | 2005-12-18 | 206.89 |
| 44 | 2454136 | 2007-02-04 | 208.11 |
| 46 | 2454555 | 2008-03-29 | 208.26 |
| 47 | 2454755 | 2008-10-15 | 208.1 |
| 48 | 2454969 | 2009-05-17 | 208.76 |
| 49 | 2455185 | 2009-12-19 | 209.16 |
| 51 | 2455595 | 2011-02-02 | 209.22 |
| 53 | 2456013 | 2012-03-26 | 209.11 |
| 54 | 2456230 | 2012-10-29 | 208.33 |
| 55 | 2456435 | 2013-05-22 | 208.24 |
| 56 | 2456641 | 2013-12-14 | 208.58 |
| 58 | 2457056 | 2015-02-02 | 207.89 |
| 60 | 2457473 | 2016-03-25 | 207.17 |
| 61 | 2457680 | 2016-10-18 | 207.06 |
| 62 | 2457891 | 2017-05-17 | 207.12 |
| 63 | 2458094 | 2017-12-06 | 206.73 |
| 64 | 2458300 | 2018-06-30 | 205.86 |
| 65 | 2458503 | 2019-01-19 | 205 |
| 66 | 2458715 | 2019-08-19 | 204.5 |
| 67 | 2458915 | 2020-03-06 | 205.21 |
| 68 | 2459120 | 2020-09-27 | 205.43 |
| 69 | 2459321 | 2021-04-16 | 204.57 |
| 70 | 2459527 | 2021-11-08 | 204.11 |
| 71 | 2459740 | 2022-06-09 | 204.75 |
| 72 | 2459939 | 2022-12-25 | 204.7 |
| 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. |