| E | O (JD) | O (dat) | Period |
| -83 | 2412330 | 1892-08-19 | 276.84 |
| -79 | 2413440 | 1895-09-03 | 277.06 |
| -76 | 2414250 | 1897-11-21 | 277.05 |
| -74 | 2414820 | 1899-06-14 | 277.64 |
| -72 | 2415370 | 1900-12-16 | 277.75 |
| -71 | 2415658 | 1901-09-30 | 277.7 |
| -70 | 2415932 | 1902-07-01 | 277.98 |
| -69 | 2416205 | 1903-03-31 | 277.73 |
| -68 | 2416503 | 1904-01-23 | 276.37 |
| -67 | 2416770 | 1904-10-16 | 275.65 |
| -66 | 2417042 | 1905-07-15 | 275.6 |
| -65 | 2417315 | 1906-04-14 | 275.59 |
| -64 | 2417575 | 1906-12-30 | 275.17 |
| -63 | 2417860 | 1907-10-11 | 275.15 |
| -62 | 2418135 | 1908-07-12 | 276.09 |
| -61 | 2418428 | 1909-05-01 | 276.61 |
| -59 | 2418970 | 1910-10-25 | 277.28 |
| -58 | 2419239 | 1911-07-21 | 277.93 |
| -56 | 2419800 | 1913-02-01 | 278.27 |
| -55 | 2420080 | 1913-11-08 | 278.69 |
| -54 | 2420355 | 1914-08-10 | 279.38 |
| -53 | 2420640 | 1915-05-22 | 281 |
| -52 | 2420921 | 1916-02-27 | 281.95 |
| -51 | 2421210 | 1916-12-12 | 282.46 |
| -50 | 2421485 | 1917-09-13 | 282.87 |
| -49 | 2421775 | 1918-06-30 | 283.15 |
| -48 | 2422055 | 1919-04-06 | 282.67 |
| -47 | 2422338 | 1920-01-14 | 281.73 |
| -46 | 2422621 | 1920-10-23 | 281.6 |
| -45 | 2422905 | 1921-08-03 | 282.06 |
| -44 | 2423187 | 1922-05-12 | 282.05 |
| -43 | 2423462 | 1923-02-11 | 282.4 |
| -42 | 2423731 | 1923-11-07 | 282.78 |
| -41 | 2424030 | 1924-09-01 | 282.39 |
| -40 | 2424318 | 1925-06-16 | 282.61 |
| -39 | 2424599 | 1926-03-24 | 282.49 |
| -38 | 2424882 | 1927-01-01 | 282.71 |
| -37 | 2425168 | 1927-10-14 | 283.05 |
| -36 | 2425434 | 1928-07-06 | 282.17 |
| -35 | 2425727 | 1929-04-25 | 282.56 |
| -34 | 2426000 | 1930-01-23 | 283.04 |
| -33 | 2426288 | 1930-11-07 | 283.83 |
| -32 | 2426581 | 1931-08-27 | 283.95 |
| -31 | 2426855 | 1932-05-27 | 283.81 |
| -30 | 2427149 | 1933-03-17 | 282.49 |
| -29 | 2427429 | 1933-12-22 | 281.64 |
| -28 | 2427721 | 1934-10-10 | 280.64 |
| -27 | 2427991 | 1935-07-07 | 279.72 |
| -26 | 2428264 | 1936-04-05 | 279.22 |
| -24 | 2428823 | 1937-10-16 | 278.59 |
| -23 | 2429100 | 1938-07-20 | 278.58 |
| -22 | 2429384 | 1939-04-30 | 278.19 |
| -21 | 2429660 | 1940-01-31 | 278.74 |
| -20 | 2429937 | 1940-11-03 | 278.35 |
| -19 | 2430220 | 1941-08-13 | 278.21 |
| -18 | 2430501 | 1942-05-21 | 277.75 |
| -17 | 2430770 | 1943-02-14 | 277.05 |
| -16 | 2431055 | 1943-11-26 | 277.18 |
| -15 | 2431319 | 1944-08-16 | 276.83 |
| -14 | 2431609 | 1945-06-02 | 276.69 |
| -13 | 2431878 | 1946-02-26 | 277.49 |
| -12 | 2432151 | 1946-11-26 | 278.38 |
| -11 | 2432439 | 1947-09-10 | 278.98 |
| -10 | 2432708 | 1948-06-05 | 279.34 |
| -9 | 2432990 | 1949-03-14 | 278.9 |
| -7 | 2433557 | 1950-10-02 | 278.69 |
| -6 | 2433837 | 1951-07-09 | 278.71 |
| -5 | 2434120 | 1952-04-17 | 278.57 |
| -3 | 2434668 | 1953-10-17 | 278.57 |
| 16 | 2439966 | 1968-04-19 | 278.5 |
| 19 | 2440790 | 1970-07-22 | 278.4 |
| 23 | 2441915 | 1973-08-20 | 278.4 |
| 24 | 2442184 | 1974-05-16 | 278.42 |
| 25 | 2442468 | 1975-02-24 | 278.63 |
| 26 | 2442748 | 1975-12-01 | 278.92 |
| 27 | 2443023 | 1976-09-01 | 279.23 |
| 28 | 2443305 | 1977-06-10 | 278.41 |
| 29 | 2443585 | 1978-03-17 | 278 |
| 30 | 2443867 | 1978-12-24 | 277.11 |
| 31 | 2444147 | 1979-09-30 | 276.17 |
| 32 | 2444416 | 1980-06-25 | 275.43 |
| 33 | 2444687 | 1981-03-23 | 274.59 |
| 34 | 2444962 | 1981-12-23 | 274.05 |
| 35 | 2445238 | 1982-09-25 | 273.97 |
| 36 | 2445507 | 1983-06-21 | 274.94 |
| 37 | 2445783 | 1984-03-23 | 275.89 |
| 38 | 2446058 | 1984-12-23 | 276.27 |
| 39 | 2446333 | 1985-09-24 | 276.41 |
| 40 | 2446613 | 1986-07-01 | 276.39 |
| 41 | 2446903 | 1987-04-17 | 276.43 |
| 42 | 2447174 | 1988-01-13 | 276.41 |
| 43 | 2447444 | 1988-10-09 | 276.65 |
| 44 | 2447719 | 1989-07-11 | 276.7 |
| 45 | 2447992 | 1990-04-10 | 276.7 |
| 46 | 2448268 | 1991-01-11 | 276.88 |
| 47 | 2448550 | 1991-10-20 | 277.53 |
| 48 | 2448833 | 1992-07-29 | 277.62 |
| 49 | 2449109 | 1993-05-01 | 277.29 |
| 50 | 2449388 | 1994-02-04 | 276.51 |
| 51 | 2449667 | 1994-11-10 | 275.55 |
| 52 | 2449940 | 1995-08-10 | 274.59 |
| 53 | 2450210 | 1996-05-06 | 273.97 |
| 54 | 2450484 | 1997-02-04 | 273.8 |
| 55 | 2450752 | 1997-10-30 | 273.57 |
| 56 | 2451027 | 1998-08-01 | 273.95 |
| 57 | 2451303 | 1999-05-04 | 274.89 |
| 58 | 2451579 | 2000-02-04 | 276.05 |
| 59 | 2451855 | 2000-11-06 | 277.01 |
| 60 | 2452127 | 2001-08-05 | 277.81 |
| 61 | 2452409 | 2002-05-14 | 278.29 |
| 62 | 2452691 | 2003-02-20 | 279.05 |
| 63 | 2452973 | 2003-11-29 | 280.29 |
| 64 | 2453251 | 2004-09-02 | 281.28 |
| 65 | 2453527 | 2005-06-05 | 282.53 |
| 66 | 2453807 | 2006-03-12 | 283.35 |
| 67 | 2454094 | 2006-12-24 | 283.89 |
| 68 | 2454387 | 2007-10-13 | 284.6 |
| 69 | 2454667 | 2008-07-19 | 285.24 |
| 70 | 2454959 | 2009-05-07 | 285.29 |
| 71 | 2455244 | 2010-02-16 | 284.7 |
| 72 | 2455523 | 2010-11-22 | 284.29 |
| 73 | 2455811 | 2011-09-06 | 283.87 |
| 74 | 2456095 | 2012-06-16 | 284.26 |
| 75 | 2456373 | 2013-03-21 | 284.25 |
| 76 | 2456652 | 2013-12-25 | 284.03 |
| 77 | 2456945 | 2014-10-14 | 283.38 |
| 78 | 2457228 | 2015-07-24 | 282.56 |
| 79 | 2457521 | 2016-05-12 | 281.99 |
| 80 | 2457803 | 2017-02-18 | 281.69 |
| 81 | 2458075 | 2017-11-17 | 281.46 |
| 82 | 2458347 | 2018-08-16 | 280.77 |
| 83 | 2458629 | 2019-05-25 | 280.42 |
| 84 | 2458910 | 2020-03-01 | 279.98 |
| 85 | 2459195 | 2020-12-11 | 280.52 |
| 86 | 2459483 | 2021-09-25 | 281.89 |
| 87 | 2459760 | 2022-06-29 | 283.2 |
| 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. |