| E | O (JD) | O (dat) | Period |
| -129 | 2412110 | 1892-01-12 | 246.02 |
| -126 | 2412840 | 1894-01-11 | 246.22 |
| -123 | 2413570 | 1896-01-11 | 246.32 |
| -117 | 2415045 | 1900-01-25 | 245.63 |
| -114 | 2415790 | 1902-02-09 | 245.67 |
| -113 | 2416040 | 1902-10-17 | 246.16 |
| -111 | 2416530 | 1904-02-19 | 246.42 |
| -110 | 2416772 | 1904-10-18 | 246.12 |
| -108 | 2417268 | 1906-02-26 | 245.33 |
| -105 | 2418004 | 1908-03-03 | 245.25 |
| -104 | 2418250 | 1908-11-04 | 245.79 |
| -102 | 2418738 | 1910-03-07 | 245.92 |
| -101 | 2418980 | 1910-11-04 | 245.92 |
| -99 | 2419476 | 1912-03-14 | 246.81 |
| -98 | 2419725 | 1912-11-18 | 247.05 |
| -96 | 2420217 | 1914-03-25 | 247.72 |
| -95 | 2420465 | 1914-11-28 | 247.9 |
| -94 | 2420725 | 1915-08-15 | 246.87 |
| -93 | 2420957 | 1916-04-03 | 246.84 |
| -92 | 2421220 | 1916-12-22 | 246.93 |
| -89 | 2421946 | 1918-12-18 | 246.59 |
| -86 | 2422686 | 1920-12-27 | 246.77 |
| -83 | 2423427 | 1923-01-07 | 246.68 |
| -80 | 2424169 | 1925-01-18 | 246.62 |
| -77 | 2424912 | 1927-01-31 | 246.9 |
| -76 | 2425160 | 1927-10-06 | 246.53 |
| -74 | 2425651 | 1929-02-08 | 246 |
| -73 | 2425900 | 1929-10-15 | 245.23 |
| -71 | 2426386 | 1931-02-13 | 244.53 |
| -70 | 2426630 | 1931-10-15 | 244.09 |
| -68 | 2427116 | 1933-02-12 | 244.04 |
| -67 | 2427360 | 1933-10-14 | 244.21 |
| -65 | 2427847 | 1935-02-13 | 244.83 |
| -62 | 2428578 | 1937-02-13 | 244.63 |
| -61 | 2428830 | 1937-10-23 | 244.16 |
| -59 | 2429317 | 1939-02-22 | 244.27 |
| -58 | 2429575 | 1939-11-07 | 244.07 |
| -56 | 2430042 | 1941-02-16 | 243.67 |
| -53 | 2430782 | 1943-02-26 | 243.33 |
| -50 | 2431509 | 1945-02-22 | 243.26 |
| -49 | 2431750 | 1945-10-21 | 243.9 |
| -47 | 2432237 | 1947-02-20 | 244.4 |
| -46 | 2432480 | 1947-10-21 | 244.68 |
| -44 | 2432980 | 1949-03-04 | 245.18 |
| -41 | 2433710 | 1951-03-04 | 245.49 |
| -38 | 2434446 | 1953-03-09 | 245.72 |
| -34 | 2435430 | 1955-11-18 | 245.67 |
| -32 | 2435920 | 1957-03-22 | 246.27 |
| -29 | 2436659 | 1959-03-31 | 247 |
| -28 | 2436904 | 1959-12-01 | 247.63 |
| -26 | 2437400 | 1961-04-10 | 248.87 |
| -25 | 2437663 | 1961-12-29 | 249.4 |
| -23 | 2438150 | 1963-04-30 | 250.17 |
| -22 | 2438412 | 1964-01-17 | 249.94 |
| -21 | 2438662 | 1964-09-23 | 248.88 |
| -20 | 2438905 | 1965-05-24 | 248.77 |
| -19 | 2439161 | 1966-02-04 | 248.06 |
| -18 | 2439392 | 1966-09-23 | 246.95 |
| -16 | 2439902 | 1968-02-15 | 247 |
| -15 | 2440140 | 1968-10-10 | 247.1 |
| -13 | 2440639 | 1970-02-21 | 247.43 |
| -12 | 2440880 | 1970-10-20 | 247.48 |
| -10 | 2441380 | 1972-03-03 | 247.15 |
| -9 | 2441628 | 1972-11-06 | 247.84 |
| -7 | 2442121 | 1974-03-14 | 248.61 |
| -6 | 2442370 | 1974-11-18 | 248.88 |
| -5 | 2442615 | 1975-07-21 | 247.94 |
| -4 | 2442873 | 1976-04-04 | 247.66 |
| -3 | 2443121 | 1976-12-08 | 248.07 |
| -2 | 2443370 | 1977-08-14 | 248.14 |
| -1 | 2443605 | 1978-04-06 | 248 |
| 0 | 2443859 | 1978-12-16 | 246.57 |
| 1 | 2444105 | 1979-08-19 | 246.36 |
| 2 | 2444354 | 1980-04-24 | 247.64 |
| 3 | 2444606 | 1981-01-01 | 247.72 |
| 4 | 2444840 | 1981-08-23 | 246.86 |
| 5 | 2445100 | 1982-05-10 | 245.79 |
| 6 | 2445342 | 1983-01-07 | 244.64 |
| 7 | 2445590 | 1983-09-12 | 245.29 |
| 8 | 2445830 | 1984-05-09 | 245.14 |
| 9 | 2446070 | 1985-01-04 | 243.57 |
| 10 | 2446315 | 1985-09-06 | 242.43 |
| 11 | 2446565 | 1986-05-14 | 241.49 |
| 12 | 2446807 | 1987-01-11 | 242.14 |
| 13 | 2447045 | 1987-09-06 | 242.64 |
| 14 | 2447281 | 1988-04-29 | 241.57 |
| 15 | 2447520 | 1988-12-24 | 240.57 |
| 16 | 2447770 | 1989-08-31 | 240.86 |
| 17 | 2448012 | 1990-04-30 | 241.79 |
| 18 | 2448250 | 1990-12-24 | 242.57 |
| 19 | 2448490 | 1991-08-21 | 242.79 |
| 20 | 2448734 | 1992-04-21 | 242.79 |
| 21 | 2448977 | 1992-12-20 | 242.85 |
| 22 | 2449220 | 1993-08-20 | 243.42 |
| 23 | 2449469 | 1994-04-26 | 244.29 |
| 24 | 2449712 | 1994-12-25 | 245.36 |
| 25 | 2449950 | 1995-08-20 | 246.22 |
| 26 | 2450198 | 1996-04-24 | 245.93 |
| 27 | 2450446 | 1996-12-28 | 245.86 |
| 28 | 2450700 | 1997-09-08 | 246.36 |
| 29 | 2450944 | 1998-05-10 | 247.07 |
| 30 | 2451188 | 1999-01-09 | 247.43 |
| 31 | 2451435 | 1999-09-13 | 246.64 |
| 32 | 2451676 | 2000-05-11 | 246.72 |
| 33 | 2451931 | 2001-01-21 | 247.72 |
| 34 | 2452177 | 2001-09-24 | 247.57 |
| 35 | 2452422 | 2002-05-27 | 247.86 |
| 36 | 2452676 | 2003-02-05 | 247.93 |
| 37 | 2452924 | 2003-10-11 | 247.43 |
| 38 | 2453165 | 2004-06-08 | 247.71 |
| 39 | 2453416 | 2005-02-14 | 247.64 |
| 40 | 2453662 | 2005-10-18 | 247 |
| 41 | 2453910 | 2006-06-23 | 246.85 |
| 42 | 2454157 | 2007-02-25 | 246.78 |
| 43 | 2454408 | 2007-11-03 | 246.64 |
| 44 | 2454650 | 2008-07-02 | 246.86 |
| 45 | 2454895 | 2009-03-04 | 246.43 |
| 46 | 2455141 | 2009-11-05 | 245.29 |
| 47 | 2455390 | 2010-07-12 | 245.22 |
| 48 | 2455638 | 2011-03-17 | 245.93 |
| 49 | 2455879 | 2011-11-13 | 245.79 |
| 50 | 2456120 | 2012-07-11 | 245.64 |
| 51 | 2456371 | 2013-03-19 | 245.64 |
| 52 | 2456617 | 2013-11-20 | 245.72 |
| 53 | 2456860 | 2014-07-21 | 245.36 |
| 54 | 2457110 | 2015-03-28 | 244.36 |
| 55 | 2457357 | 2015-11-30 | 244.29 |
| 56 | 2457600 | 2016-07-30 | 245 |
| 57 | 2457834 | 2017-03-21 | 244.86 |
| 58 | 2458078 | 2017-11-20 | 244.92 |
| 59 | 2458330 | 2018-07-30 | 245.85 |
| 60 | 2458577 | 2019-04-03 | 247.07 |
| 61 | 2458821 | 2019-12-03 | 247.64 |
| 62 | 2459075 | 2020-08-13 | 247.42 |
| 63 | 2459324 | 2021-04-19 | 247.52 |
| 64 | 2459569 | 2021-12-20 | 248.49 |
| 65 | 2459810 | 2022-08-18 | 249.38 |
| 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. |