| E | O (JD) | O (dat) | Period |
| -188 | 2398348 | 1854-05-09 | 233.28 |
| -186 | 2398802 | 1855-08-06 | 233.66 |
| -185 | 2399024 | 1856-03-15 | 234.21 |
| -183 | 2399495 | 1857-06-29 | 233.88 |
| -180 | 2400202 | 1859-06-06 | 233.87 |
| -177 | 2400908 | 1861-05-12 | 233.46 |
| -175 | 2401376 | 1862-08-23 | 234.06 |
| -174 | 2401621 | 1863-04-25 | 233.77 |
| -172 | 2402069 | 1864-07-16 | 233.13 |
| -169 | 2402777 | 1866-06-24 | 232.59 |
| -166 | 2403461 | 1868-05-08 | 232.68 |
| -165 | 2403723 | 1869-01-25 | 233.03 |
| -164 | 2403926 | 1869-08-16 | 233.91 |
| -163 | 2404155 | 1870-04-02 | 234.07 |
| -161 | 2404628 | 1871-07-19 | 234.03 |
| -153 | 2406504 | 1876-09-06 | 234.13 |
| -149 | 2407443 | 1879-04-03 | 233.95 |
| -133 | 2411205 | 1889-07-21 | 233.99 |
| -130 | 2411890 | 1891-06-06 | 233.96 |
| -127 | 2412587 | 1893-05-03 | 233.63 |
| -125 | 2413063 | 1894-08-22 | 233.3 |
| -122 | 2413744 | 1896-07-03 | 233.35 |
| -121 | 2413970 | 1897-02-14 | 232.84 |
| -119 | 2414458 | 1898-06-17 | 233.32 |
| -116 | 2415130 | 1900-04-20 | 233.45 |
| -114 | 2415607 | 1901-08-10 | 233.58 |
| -111 | 2416345 | 1903-08-18 | 234.3 |
| -108 | 2417014 | 1905-06-17 | 234.21 |
| -107 | 2417254 | 1906-02-12 | 233.85 |
| -106 | 2417484 | 1906-09-30 | 234.72 |
| -105 | 2417719 | 1907-05-23 | 233.69 |
| -104 | 2417968 | 1908-01-27 | 232.84 |
| -102 | 2418419 | 1909-04-22 | 233.25 |
| -100 | 2418887 | 1910-08-03 | 233.27 |
| -97 | 2419609 | 1912-07-25 | 233.4 |
| -95 | 2420049 | 1913-10-08 | 233.65 |
| -94 | 2420280 | 1914-05-27 | 233.76 |
| -91 | 2420981 | 1916-04-27 | 234.38 |
| -89 | 2421461 | 1917-08-20 | 234.71 |
| -88 | 2421696 | 1918-04-12 | 234.78 |
| -86 | 2422174 | 1919-08-03 | 235.89 |
| -83 | 2422871 | 1921-06-30 | 236.02 |
| -82 | 2423111 | 1922-02-25 | 235.85 |
| -81 | 2423351 | 1922-10-23 | 235.16 |
| -80 | 2423574 | 1923-06-03 | 234.92 |
| -79 | 2423826 | 1924-02-10 | 234.59 |
| -78 | 2424054 | 1924-09-25 | 234.57 |
| -77 | 2424283 | 1925-05-12 | 233.44 |
| -76 | 2424513 | 1925-12-28 | 232.91 |
| -75 | 2424753 | 1926-08-25 | 232.05 |
| -74 | 2424989 | 1927-04-18 | 231.07 |
| -73 | 2425221 | 1927-12-06 | 230.93 |
| -72 | 2425439 | 1928-07-11 | 230.61 |
| -71 | 2425678 | 1929-03-07 | 230.29 |
| -70 | 2425896 | 1929-10-11 | 230.08 |
| -69 | 2426135 | 1930-06-07 | 229.98 |
| -68 | 2426363 | 1931-01-21 | 230.42 |
| -67 | 2426593 | 1931-09-08 | 231 |
| -66 | 2426826 | 1932-04-28 | 231.2 |
| -65 | 2427061 | 1932-12-19 | 231.5 |
| -64 | 2427285 | 1933-07-31 | 231.56 |
| -63 | 2427520 | 1934-03-23 | 231.79 |
| -62 | 2427751 | 1934-11-09 | 232.02 |
| -61 | 2427987 | 1935-07-03 | 232.2 |
| -60 | 2428212 | 1936-02-13 | 232.2 |
| -59 | 2428452 | 1936-10-10 | 232.6 |
| -58 | 2428680 | 1937-05-26 | 232.5 |
| -56 | 2429147 | 1938-09-05 | 232.68 |
| -55 | 2429381 | 1939-04-27 | 233.18 |
| -53 | 2429841 | 1940-07-30 | 233.79 |
| -52 | 2430080 | 1941-03-26 | 233.84 |
| -50 | 2430541 | 1942-06-30 | 234.36 |
| -48 | 2431011 | 1943-10-13 | 234.71 |
| -47 | 2431257 | 1944-06-15 | 234.9 |
| -45 | 2431727 | 1945-09-28 | 234.88 |
| -42 | 2432421 | 1947-08-23 | 234.83 |
| -41 | 2432666 | 1948-04-24 | 234.9 |
| -40 | 2432901 | 1948-12-15 | 234.32 |
| -39 | 2433132 | 1949-08-03 | 233.54 |
| -38 | 2433356 | 1950-03-15 | 233.37 |
| -37 | 2433600 | 1950-11-14 | 233.26 |
| -36 | 2433833 | 1951-07-05 | 232.32 |
| -35 | 2434059 | 1952-02-16 | 232.03 |
| -34 | 2434290 | 1952-10-04 | 231.95 |
| -33 | 2434530 | 1953-06-01 | 231.54 |
| -32 | 2434762 | 1954-01-19 | 230.85 |
| -31 | 2434984 | 1954-08-29 | 231.05 |
| -30 | 2435217 | 1955-04-19 | 231.25 |
| -29 | 2435450 | 1955-12-08 | 231.35 |
| -28 | 2435675 | 1956-07-20 | 231.54 |
| -27 | 2435909 | 1957-03-11 | 232.21 |
| -26 | 2436146 | 1957-11-03 | 233.17 |
| -25 | 2436376 | 1958-06-21 | 233.83 |
| -24 | 2436611 | 1959-02-11 | 234.63 |
| -23 | 2436846 | 1959-10-04 | 235.07 |
| -22 | 2437080 | 1960-05-25 | 235.68 |
| -21 | 2437318 | 1961-01-18 | 235.96 |
| -20 | 2437556 | 1961-09-13 | 236.25 |
| -19 | 2437794 | 1962-05-09 | 236.9 |
| -18 | 2438022 | 1962-12-23 | 236.88 |
| -17 | 2438270 | 1963-08-28 | 236.92 |
| -16 | 2438501 | 1964-04-15 | 236.65 |
| -15 | 2438735 | 1964-12-05 | 236.25 |
| -14 | 2438985 | 1965-08-12 | 236 |
| -13 | 2439210 | 1966-03-25 | 235.55 |
| -12 | 2439449 | 1966-11-19 | 234.95 |
| -11 | 2439682 | 1967-07-10 | 234.88 |
| -10 | 2439914 | 1968-02-27 | 234.29 |
| -9 | 2440151 | 1968-10-21 | 233.68 |
| -8 | 2440380 | 1969-06-07 | 233.87 |
| -7 | 2440620 | 1970-02-02 | 233.46 |
| -6 | 2440854 | 1970-09-24 | 233.26 |
| -5 | 2441082 | 1971-05-10 | 232.92 |
| -4 | 2441317 | 1971-12-31 | 232.45 |
| -3 | 2441551 | 1972-08-21 | 232.45 |
| -2 | 2441781 | 1973-04-08 | 231.93 |
| -1 | 2442013 | 1973-11-26 | 231.84 |
| 0 | 2442243 | 1974-07-14 | 231.86 |
| 1 | 2442474 | 1975-03-02 | 232.11 |
| 2 | 2442712 | 1975-10-26 | 232.2 |
| 3 | 2442938 | 1976-06-08 | 232.75 |
| 4 | 2443171 | 1977-01-27 | 233.38 |
| 5 | 2443403 | 1977-09-16 | 233.69 |
| 6 | 2443644 | 1978-05-15 | 233.96 |
| 7 | 2443871 | 1978-12-28 | 234.38 |
| 8 | 2444111 | 1979-08-25 | 235.06 |
| 9 | 2444349 | 1980-04-19 | 235.69 |
| 10 | 2444577 | 1980-12-03 | 235.99 |
| 11 | 2444813 | 1981-07-27 | 236.01 |
| 12 | 2445053 | 1982-03-24 | 236.22 |
| 13 | 2445289 | 1982-11-15 | 235.96 |
| 14 | 2445532 | 1983-07-16 | 236.25 |
| 15 | 2445764 | 1984-03-04 | 236.7 |
| 16 | 2445998 | 1984-10-24 | 236.69 |
| 17 | 2446232 | 1985-06-15 | 236.22 |
| 18 | 2446467 | 1986-02-05 | 236.07 |
| 19 | 2446710 | 1986-10-06 | 235.5 |
| 20 | 2446948 | 1987-06-01 | 235.51 |
| 21 | 2447184 | 1988-01-23 | 235.58 |
| 22 | 2447412 | 1988-09-07 | 234.85 |
| 23 | 2447651 | 1989-05-04 | 234.34 |
| 24 | 2447878 | 1989-12-17 | 234.05 |
| 25 | 2448117 | 1990-08-13 | 234.07 |
| 26 | 2448357 | 1991-04-10 | 233.8 |
| 27 | 2448577 | 1991-11-16 | 233.8 |
| 28 | 2448817 | 1992-07-13 | 233.18 |
| 29 | 2449057 | 1993-03-10 | 232.93 |
| 30 | 2449290 | 1993-10-29 | 232.34 |
| 31 | 2449514 | 1994-06-10 | 232.25 |
| 32 | 2449750 | 1995-02-01 | 232.68 |
| 33 | 2449976 | 1995-09-15 | 232.36 |
| 34 | 2450210 | 1996-05-06 | 232.24 |
| 35 | 2450442 | 1996-12-24 | 232.62 |
| 36 | 2450679 | 1997-08-18 | 233.35 |
| 37 | 2450915 | 1998-04-11 | 233.95 |
| 38 | 2451146 | 1998-11-28 | 234.49 |
| 39 | 2451376 | 1999-07-16 | 234.45 |
| 40 | 2451611 | 2000-03-07 | 234.39 |
| 41 | 2451850 | 2000-11-01 | 234.4 |
| 42 | 2452090 | 2001-06-29 | 234.33 |
| 43 | 2452321 | 2002-02-15 | 234.36 |
| 44 | 2452551 | 2002-10-03 | 234.3 |
| 45 | 2452785 | 2003-05-25 | 233.64 |
| 46 | 2453023 | 2004-01-18 | 233.5 |
| 47 | 2453253 | 2004-09-04 | 233.53 |
| 48 | 2453487 | 2005-04-26 | 233.83 |
| 49 | 2453722 | 2005-12-17 | 233.88 |
| 50 | 2453948 | 2006-07-31 | 233.91 |
| 51 | 2454192 | 2007-04-01 | 234.29 |
| 52 | 2454425 | 2007-11-20 | 234.54 |
| 53 | 2454658 | 2008-07-10 | 234.44 |
| 54 | 2454889 | 2009-02-26 | 234.52 |
| 55 | 2455126 | 2009-10-21 | 234.62 |
| 56 | 2455368 | 2010-06-20 | 234.71 |
| 57 | 2455596 | 2011-02-03 | 235.11 |
| 58 | 2455827 | 2011-09-22 | 235.23 |
| 59 | 2456065 | 2012-05-17 | 234.99 |
| 60 | 2456299 | 2013-01-06 | 234.37 |
| 61 | 2456543 | 2013-09-07 | 233.94 |
| 62 | 2456776 | 2014-04-28 | 233.65 |
| 63 | 2457007 | 2014-12-15 | 233.07 |
| 64 | 2457236 | 2015-08-01 | 232.41 |
| 65 | 2457466 | 2016-03-18 | 231.88 |
| 66 | 2457701 | 2016-11-08 | 231.47 |
| 67 | 2457929 | 2017-06-24 | 231.55 |
| 68 | 2458161 | 2018-02-11 | 231.85 |
| 69 | 2458395 | 2018-10-03 | 232.27 |
| 70 | 2458626 | 2019-05-22 | 232.43 |
| 71 | 2458860 | 2020-01-11 | 232.47 |
| 72 | 2459090 | 2020-08-28 | 232.75 |
| 73 | 2459325 | 2021-04-20 | 232.8 |
| 74 | 2459560 | 2021-12-11 | 232.79 |
| 75 | 2459790 | 2022-07-29 | 233 |
| 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. |