| E | O (JD) | O (dat) | Period |
| -151 | 2414240 | 1897-11-11 | 187.48 |
| -149 | 2414610 | 1898-11-16 | 187.26 |
| -145 | 2415375 | 1900-12-21 | 187.04 |
| -142 | 2415920 | 1902-06-19 | 186.72 |
| -138 | 2416680 | 1904-07-18 | 186.38 |
| -136 | 2417050 | 1905-07-23 | 186.41 |
| -134 | 2417420 | 1906-07-28 | 186.53 |
| -132 | 2417790 | 1907-08-02 | 186.12 |
| -130 | 2418155 | 1908-08-01 | 186.18 |
| -128 | 2418520 | 1909-08-01 | 186.26 |
| -124 | 2419280 | 1911-08-31 | 186.48 |
| -118 | 2420410 | 1914-10-04 | 186.48 |
| -110 | 2421880 | 1918-10-13 | 186.47 |
| -101 | 2423560 | 1923-05-20 | 186.44 |
| -99 | 2423945 | 1924-06-08 | 186.33 |
| -97 | 2424325 | 1925-06-23 | 185.99 |
| -95 | 2424680 | 1926-06-13 | 185.71 |
| -93 | 2425050 | 1927-06-18 | 185.78 |
| -91 | 2425420 | 1928-06-22 | 185.06 |
| -89 | 2425793 | 1929-06-30 | 184.48 |
| -87 | 2426161 | 1930-07-03 | 184.4 |
| -85 | 2426530 | 1931-07-07 | 185.02 |
| -83 | 2426906 | 1932-07-17 | 185.49 |
| -81 | 2427270 | 1933-07-16 | 185.63 |
| -80 | 2427445 | 1934-01-07 | 185.98 |
| -79 | 2427636 | 1934-07-17 | 186.42 |
| -77 | 2428020 | 1935-08-05 | 186.38 |
| -75 | 2428400 | 1936-08-19 | 185.92 |
| -73 | 2428760 | 1937-08-14 | 185.56 |
| -71 | 2429140 | 1938-08-29 | 185.08 |
| -69 | 2429514 | 1939-09-07 | 184.7 |
| -67 | 2429874 | 1940-09-01 | 184.08 |
| -65 | 2430232 | 1941-08-25 | 183.99 |
| -63 | 2430599 | 1942-08-27 | 184 |
| -61 | 2430967 | 1943-08-30 | 184.04 |
| -59 | 2431350 | 1944-09-16 | 184.35 |
| -57 | 2431708 | 1945-09-09 | 184.92 |
| -55 | 2432085 | 1946-09-21 | 185.65 |
| -53 | 2432446 | 1947-09-17 | 185.45 |
| -51 | 2432825 | 1948-09-30 | 185.44 |
| -50 | 2433010 | 1949-04-03 | 185.79 |
| -49 | 2433197 | 1949-10-07 | 186 |
| -34 | 2435987 | 1957-05-28 | 186.06 |
| -24 | 2437826 | 1962-06-10 | 186.09 |
| -22 | 2438202 | 1963-06-21 | 186.1 |
| -12 | 2440090 | 1968-08-21 | 186.13 |
| -10 | 2440458 | 1969-08-24 | 186.22 |
| -8 | 2440828 | 1970-08-29 | 186.49 |
| -6 | 2441192 | 1971-08-28 | 186.73 |
| -4 | 2441573 | 1972-09-12 | 186.29 |
| -2 | 2441937 | 1973-09-11 | 185.14 |
| 0 | 2442317 | 1974-09-26 | 184.88 |
| 2 | 2442689 | 1975-10-03 | 184.64 |
| 4 | 2443053 | 1976-10-01 | 184.1 |
| 6 | 2443425 | 1977-10-08 | 183.31 |
| 8 | 2443780 | 1978-09-28 | 183.07 |
| 10 | 2444149 | 1979-10-02 | 182.76 |
| 12 | 2444520 | 1980-10-07 | 182.73 |
| 14 | 2444875 | 1981-09-27 | 182.86 |
| 16 | 2445237 | 1982-09-24 | 183.25 |
| 18 | 2445613 | 1983-10-05 | 183.71 |
| 20 | 2445981 | 1984-10-07 | 183.93 |
| 22 | 2446346 | 1985-10-07 | 184.38 |
| 23 | 2446530 | 1986-04-09 | 185.29 |
| 24 | 2446727 | 1986-10-23 | 185.62 |
| 25 | 2446905 | 1987-04-19 | 186.14 |
| 26 | 2447091 | 1987-10-22 | 186.75 |
| 27 | 2447280 | 1988-04-28 | 187.25 |
| 28 | 2447470 | 1988-11-04 | 187.02 |
| 29 | 2447650 | 1989-05-03 | 186.43 |
| 30 | 2447850 | 1989-11-19 | 186.3 |
| 31 | 2448030 | 1990-05-18 | 186.35 |
| 32 | 2448218 | 1990-11-22 | 186.48 |
| 33 | 2448399 | 1991-05-22 | 186.31 |
| 34 | 2448581 | 1991-11-20 | 186.44 |
| 35 | 2448765 | 1992-05-22 | 185.96 |
| 36 | 2448963 | 1992-12-06 | 186.2 |
| 37 | 2449153 | 1993-06-14 | 186 |
| 38 | 2449332 | 1993-12-10 | 185.83 |
| 39 | 2449521 | 1994-06-17 | 185.62 |
| 40 | 2449702 | 1994-12-15 | 184.83 |
| 41 | 2449888 | 1995-06-19 | 184.77 |
| 42 | 2450070 | 1995-12-18 | 185.16 |
| 43 | 2450253 | 1996-06-18 | 185.65 |
| 45 | 2450628 | 1997-06-28 | 185.99 |
| 46 | 2450804 | 1997-12-21 | 186.82 |
| 47 | 2451006 | 1998-07-11 | 187.2 |
| 48 | 2451192 | 1999-01-13 | 187.76 |
| 49 | 2451376 | 1999-07-16 | 188.38 |
| 50 | 2451565 | 2000-01-21 | 188.35 |
| 51 | 2451760 | 2000-08-03 | 188.37 |
| 52 | 2451941 | 2001-01-31 | 187.65 |
| 53 | 2452132 | 2001-08-10 | 187.14 |
| 54 | 2452325 | 2002-02-19 | 186.69 |
| 55 | 2452503 | 2002-08-16 | 186.16 |
| 57 | 2452882 | 2003-08-30 | 185.68 |
| 58 | 2453066 | 2004-03-01 | 185.18 |
| 59 | 2453243 | 2004-08-25 | 184.63 |
| 60 | 2453430 | 2005-02-28 | 184.05 |
| 61 | 2453617 | 2005-09-03 | 183.85 |
| 62 | 2453802 | 2006-03-07 | 183.55 |
| 63 | 2453978 | 2006-08-30 | 183.42 |
| 64 | 2454167 | 2007-03-07 | 183.66 |
| 65 | 2454346 | 2007-09-02 | 183.39 |
| 66 | 2454530 | 2008-03-04 | 183.44 |
| 67 | 2454720 | 2008-09-10 | 183.39 |
| 68 | 2454895 | 2009-03-04 | 183.95 |
| 69 | 2455085 | 2009-09-10 | 184.65 |
| 70 | 2455265 | 2010-03-09 | 185.35 |
| 71 | 2455452 | 2010-09-12 | 185.65 |
| 72 | 2455630 | 2011-03-09 | 186.16 |
| 73 | 2455824 | 2011-09-19 | 186.53 |
| 74 | 2456020 | 2012-04-02 | 186.3 |
| 75 | 2456202 | 2012-10-01 | 186.67 |
| 76 | 2456385 | 2013-04-02 | 187.06 |
| 77 | 2456577 | 2013-10-11 | 187.05 |
| 78 | 2456755 | 2014-04-07 | 186.47 |
| 79 | 2456939 | 2014-10-08 | 186.34 |
| 80 | 2457133 | 2015-04-20 | 186.84 |
| 81 | 2457327 | 2015-10-31 | 186.85 |
| 82 | 2457506 | 2016-04-27 | 186.86 |
| 83 | 2457691 | 2016-10-29 | 187.52 |
| 84 | 2457880 | 2017-05-06 | 186.85 |
| 85 | 2458070 | 2017-11-12 | 185.94 |
| 86 | 2458251 | 2018-05-12 | 185.29 |
| 87 | 2458441 | 2018-11-18 | 185.19 |
| 88 | 2458636 | 2019-06-01 | 184.7 |
| 89 | 2458805 | 2019-11-17 | 184.11 |
| 90 | 2458989 | 2020-05-19 | 183.61 |
| 91 | 2459172 | 2020-11-18 | 183.44 |
| 92 | 2459359 | 2021-05-24 | 182.92 |
| 93 | 2459542 | 2021-11-23 | 182.65 |
| 94 | 2459725 | 2022-05-25 | 183.86 |
| 95 | 2459907 | 2022-11-23 | 183.77 |
| 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. |