| E | O (JD) | O (dat) | Period |
| -79 | 2412565 | 1893-04-11 | 286.07 |
| -73 | 2414270 | 1897-12-11 | 286.74 |
| -70 | 2415120 | 1900-04-10 | 286.99 |
| -69 | 2415420 | 1901-02-04 | 287.1 |
| -68 | 2415710 | 1901-11-21 | 287.7 |
| -65 | 2416570 | 1904-03-30 | 288.37 |
| -64 | 2416868 | 1905-01-22 | 290.5 |
| -63 | 2417151 | 1905-11-01 | 291.41 |
| -60 | 2418010 | 1908-03-09 | 291.24 |
| -59 | 2418320 | 1909-01-13 | 291.76 |
| -58 | 2418623 | 1909-11-12 | 292.4 |
| -54 | 2419790 | 1913-01-22 | 292.32 |
| -53 | 2420080 | 1913-11-08 | 292.17 |
| -50 | 2420940 | 1916-03-17 | 291.6 |
| -49 | 2421248 | 1917-01-19 | 290.2 |
| -48 | 2421545 | 1917-11-12 | 289.27 |
| -45 | 2422410 | 1920-03-26 | 288.55 |
| -44 | 2422690 | 1920-12-31 | 288.02 |
| -43 | 2422970 | 1921-10-07 | 287.55 |
| -40 | 2423830 | 1924-02-14 | 286.63 |
| -39 | 2424120 | 1924-11-30 | 286.01 |
| -38 | 2424410 | 1925-09-16 | 285.67 |
| -35 | 2425270 | 1928-01-24 | 285.06 |
| -34 | 2425560 | 1928-11-09 | 284.6 |
| -31 | 2426409 | 1931-03-08 | 283.97 |
| -30 | 2426685 | 1931-12-09 | 283.26 |
| -29 | 2426969 | 1932-09-18 | 282.64 |
| -27 | 2427520 | 1934-03-23 | 282.27 |
| -26 | 2427812 | 1935-01-09 | 282.52 |
| -25 | 2428100 | 1935-10-24 | 283 |
| -22 | 2428942 | 1938-02-12 | 283.53 |
| -21 | 2429224 | 1938-11-21 | 284.07 |
| -20 | 2429513 | 1939-09-06 | 284.42 |
| -18 | 2430085 | 1941-03-31 | 284.16 |
| -17 | 2430368 | 1942-01-08 | 284.51 |
| -16 | 2430653 | 1942-10-20 | 284.84 |
| -13 | 2431510 | 1945-02-23 | 285.07 |
| -12 | 2431788 | 1945-11-28 | 284.9 |
| -11 | 2432070 | 1946-09-06 | 284.6 |
| -9 | 2432650 | 1948-04-08 | 284.75 |
| -8 | 2432929 | 1949-01-12 | 284.87 |
| -7 | 2433224 | 1949-11-03 | 284.86 |
| -6 | 2433500 | 1950-08-06 | 284.86 |
| 20 | 2440898 | 1970-11-07 | 284.87 |
| 24 | 2442047 | 1973-12-30 | 284.83 |
| 25 | 2442340 | 1974-10-19 | 284.87 |
| 27 | 2442900 | 1976-05-01 | 284.89 |
| 28 | 2443183 | 1977-02-08 | 285.07 |
| 29 | 2443475 | 1977-11-27 | 285.52 |
| 30 | 2443760 | 1978-09-08 | 285.28 |
| 32 | 2444330 | 1980-03-31 | 285.33 |
| 33 | 2444621 | 1981-01-16 | 285.61 |
| 34 | 2444900 | 1981-10-22 | 285.2 |
| 35 | 2445180 | 1982-07-29 | 284.34 |
| 36 | 2445475 | 1983-05-20 | 283.65 |
| 37 | 2445759 | 1984-02-28 | 282.99 |
| 38 | 2446040 | 1984-12-05 | 282.55 |
| 39 | 2446320 | 1985-09-11 | 282.06 |
| 40 | 2446597 | 1986-06-15 | 281.71 |
| 41 | 2446878 | 1987-03-23 | 281.05 |
| 42 | 2447163 | 1988-01-02 | 280.65 |
| 43 | 2447447 | 1988-10-12 | 280.57 |
| 44 | 2447720 | 1989-07-12 | 280.46 |
| 45 | 2448008 | 1990-04-26 | 280.18 |
| 46 | 2448287 | 1991-01-30 | 279.4 |
| 47 | 2448560 | 1991-10-30 | 279.02 |
| 49 | 2449124 | 1993-05-16 | 278.92 |
| 50 | 2449403 | 1994-02-19 | 279.01 |
| 51 | 2449679 | 1994-11-22 | 279.14 |
| 52 | 2449949 | 1995-08-19 | 279.65 |
| 53 | 2450236 | 1996-06-01 | 280.37 |
| 54 | 2450517 | 1997-03-09 | 280.5 |
| 55 | 2450796 | 1997-12-13 | 280.97 |
| 56 | 2451084 | 1998-09-27 | 281.19 |
| 57 | 2451364 | 1999-07-04 | 281.7 |
| 58 | 2451648 | 2000-04-13 | 281.85 |
| 59 | 2451922 | 2001-01-12 | 282.15 |
| 60 | 2452206 | 2001-10-23 | 282.05 |
| 61 | 2452482 | 2002-07-26 | 282.05 |
| 62 | 2452773 | 2003-05-13 | 282.45 |
| 63 | 2453060 | 2004-02-24 | 282.78 |
| 64 | 2453341 | 2004-12-01 | 283.13 |
| 65 | 2453616 | 2005-09-02 | 282.88 |
| 66 | 2453903 | 2006-06-16 | 282.5 |
| 67 | 2454188 | 2007-03-28 | 281.83 |
| 68 | 2454471 | 2008-01-05 | 281.12 |
| 69 | 2454752 | 2008-10-12 | 280.69 |
| 70 | 2455031 | 2009-07-18 | 280.55 |
| 71 | 2455309 | 2010-04-22 | 280.11 |
| 72 | 2455592 | 2011-01-30 | 280.05 |
| 73 | 2455864 | 2011-10-29 | 280.2 |
| 74 | 2456144 | 2012-08-04 | 280.91 |
| 75 | 2456430 | 2013-05-17 | 281.73 |
| 76 | 2456711 | 2014-02-22 | 282.88 |
| 77 | 2456994 | 2014-12-02 | 283.65 |
| 78 | 2457275 | 2015-09-09 | 284.62 |
| 79 | 2457565 | 2016-06-25 | 284.86 |
| 80 | 2457849 | 2017-04-05 | 284.75 |
| 81 | 2458141 | 2018-01-22 | 285.17 |
| 82 | 2458421 | 2018-10-29 | 285.44 |
| 83 | 2458708 | 2019-08-12 | 285.19 |
| 84 | 2458989 | 2020-05-19 | 284.88 |
| 85 | 2459270 | 2021-02-24 | 284.79 |
| 86 | 2459564 | 2021-12-15 | 284.55 |
| 87 | 2459850 | 2022-09-27 | 284.88 |
| 88 | 2460127 | 2023-07-01 | 284.89 |
| 89 | 2460415 | 2024-04-14 | 285.34 |
| 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. |