| E | O (JD) | O (dat) | Period |
| -99 | 2415249 | 1900-08-17 | 261.02 |
| -98 | 2415514 | 1901-05-09 | 261.11 |
| -97 | 2415786 | 1902-02-05 | 261.02 |
| -84 | 2419160 | 1911-05-03 | 261.14 |
| -83 | 2419429 | 1912-01-27 | 261.37 |
| -82 | 2419692 | 1912-10-16 | 261.19 |
| -74 | 2421776 | 1918-07-01 | 261.3 |
| -73 | 2422043 | 1919-03-25 | 262 |
| -72 | 2422311 | 1919-12-18 | 261.93 |
| -71 | 2422571 | 1920-09-03 | 261.85 |
| -70 | 2422827 | 1921-05-17 | 261.5 |
| -69 | 2423098 | 1922-02-12 | 260.14 |
| -68 | 2423357 | 1922-10-29 | 258.86 |
| -67 | 2423610 | 1923-07-09 | 258.79 |
| -66 | 2423870 | 1924-03-25 | 258.93 |
| -65 | 2424126 | 1924-12-06 | 258.14 |
| -64 | 2424380 | 1925-08-17 | 257.64 |
| -63 | 2424641 | 1926-05-05 | 258 |
| -62 | 2424909 | 1927-01-28 | 258.78 |
| -61 | 2425160 | 1927-10-06 | 259.78 |
| -60 | 2425414 | 1928-06-16 | 261 |
| -59 | 2425678 | 1929-03-07 | 260.99 |
| -58 | 2425941 | 1929-11-25 | 260.85 |
| -57 | 2426202 | 1930-08-13 | 262.14 |
| -56 | 2426473 | 1931-05-11 | 262.22 |
| -55 | 2426731 | 1932-01-24 | 261.5 |
| -54 | 2426990 | 1932-10-09 | 261.64 |
| -53 | 2427254 | 1933-06-30 | 261.72 |
| -52 | 2427509 | 1934-03-12 | 262.43 |
| -51 | 2427771 | 1934-11-29 | 263.07 |
| -50 | 2428035 | 1935-08-20 | 262.57 |
| -49 | 2428304 | 1936-05-15 | 262.93 |
| -48 | 2428574 | 1937-02-09 | 263.29 |
| -47 | 2428830 | 1937-10-23 | 262.72 |
| -46 | 2429090 | 1938-07-10 | 262.57 |
| -45 | 2429354 | 1939-03-31 | 261.93 |
| -44 | 2429612 | 1939-12-14 | 262.07 |
| -43 | 2429872 | 1940-08-30 | 263.14 |
| -42 | 2430143 | 1941-05-28 | 262.99 |
| -41 | 2430402 | 1942-02-11 | 263.14 |
| -40 | 2430671 | 1942-11-07 | 263.43 |
| -39 | 2430933 | 1943-07-27 | 262.14 |
| -38 | 2431193 | 1944-04-12 | 260.99 |
| -37 | 2431457 | 1945-01-01 | 260.22 |
| -36 | 2431715 | 1945-09-16 | 259.29 |
| -35 | 2431970 | 1946-05-29 | 259.64 |
| -34 | 2432229 | 1947-02-12 | 259.36 |
| -33 | 2432487 | 1947-10-28 | 258.43 |
| -32 | 2432747 | 1948-07-14 | 258.93 |
| -31 | 2433014 | 1949-04-07 | 259.79 |
| -30 | 2433267 | 1949-12-16 | 260.5 |
| -29 | 2433523 | 1950-08-29 | 261.29 |
| -28 | 2433787 | 1951-05-20 | 260.86 |
| -27 | 2434049 | 1952-02-06 | 260.5 |
| -26 | 2434314 | 1952-10-28 | 261.5 |
| -25 | 2434578 | 1953-07-19 | 262.22 |
| -24 | 2434835 | 1954-04-02 | 261.79 |
| -23 | 2435093 | 1954-12-16 | 260.86 |
| -22 | 2435358 | 1955-09-07 | 260.49 |
| -21 | 2435623 | 1956-05-29 | 260.85 |
| -20 | 2435878 | 1957-02-08 | 261.43 |
| -19 | 2436137 | 1957-10-25 | 261.72 |
| -18 | 2436402 | 1958-07-17 | 261 |
| -17 | 2436663 | 1959-04-04 | 260.72 |
| -16 | 2436925 | 1959-12-22 | 261.57 |
| -15 | 2437190 | 1960-09-12 | 261.93 |
| -14 | 2437445 | 1961-05-25 | 261.72 |
| -13 | 2437706 | 1962-02-10 | 261.29 |
| -12 | 2437971 | 1962-11-02 | 260.92 |
| -11 | 2438235 | 1963-07-24 | 261.28 |
| -10 | 2438494 | 1964-04-08 | 261.79 |
| -9 | 2438752 | 1964-12-22 | 261.28 |
| -8 | 2439016 | 1965-09-12 | 260.49 |
| -7 | 2439277 | 1966-05-31 | 260.07 |
| -6 | 2439539 | 1967-02-17 | 259.57 |
| -5 | 2439796 | 1967-11-01 | 259.43 |
| -4 | 2440057 | 1968-07-19 | 258.86 |
| -3 | 2440313 | 1969-04-01 | 258.57 |
| -2 | 2440567 | 1969-12-11 | 259.57 |
| -1 | 2440833 | 1970-09-03 | 259.93 |
| 0 | 2441084 | 1971-05-12 | 260.29 |
| 1 | 2441352 | 1972-02-04 | 260.07 |
| 2 | 2441617 | 1972-10-26 | 258.72 |
| 3 | 2441875 | 1973-07-11 | 259.14 |
| 4 | 2442139 | 1974-04-01 | 259.93 |
| 5 | 2442382 | 1974-11-30 | 259.36 |
| 6 | 2442640 | 1975-08-15 | 259.14 |
| 7 | 2442905 | 1976-05-06 | 259.07 |
| 8 | 2443170 | 1977-01-26 | 259.85 |
| 9 | 2443430 | 1977-10-13 | 261.07 |
| 10 | 2443690 | 1978-06-30 | 261.93 |
| 11 | 2443951 | 1979-03-18 | 262.92 |
| 12 | 2444208 | 1979-11-30 | 263.14 |
| 13 | 2444469 | 1980-08-17 | 263.14 |
| 14 | 2444743 | 1981-05-18 | 263.29 |
| 15 | 2445013 | 1982-02-12 | 263.5 |
| 16 | 2445271 | 1982-10-28 | 264.29 |
| 17 | 2445533 | 1983-07-17 | 264 |
| 18 | 2445794 | 1984-04-03 | 263.64 |
| 19 | 2446054 | 1984-12-19 | 263.93 |
| 20 | 2446323 | 1985-09-14 | 263.43 |
| 21 | 2446585 | 1986-06-03 | 263.29 |
| 22 | 2446862 | 1987-03-07 | 263.64 |
| 23 | 2447117 | 1987-11-17 | 264.14 |
| 24 | 2447375 | 1988-08-01 | 263.79 |
| 25 | 2447638 | 1989-04-21 | 262 |
| 26 | 2447901 | 1990-01-09 | 261.72 |
| 27 | 2448174 | 1990-10-09 | 262.5 |
| 28 | 2448427 | 1991-06-19 | 262.49 |
| 29 | 2448688 | 1992-03-06 | 262.42 |
| 30 | 2448955 | 1992-11-28 | 261.86 |
| 31 | 2449212 | 1993-08-12 | 261.86 |
| 32 | 2449476 | 1994-05-03 | 261.57 |
| 33 | 2449737 | 1995-01-19 | 260.43 |
| 34 | 2450004 | 1995-10-13 | 260.22 |
| 35 | 2450263 | 1996-06-28 | 261.07 |
| 36 | 2450514 | 1997-03-06 | 262.29 |
| 37 | 2450775 | 1997-11-22 | 262.64 |
| 38 | 2451035 | 1998-08-09 | 261.64 |
| 39 | 2451308 | 1999-05-09 | 262.21 |
| 40 | 2451577 | 2000-02-02 | 263.72 |
| 41 | 2451841 | 2000-10-23 | 263.57 |
| 42 | 2452089 | 2001-06-28 | 262.49 |
| 43 | 2452359 | 2002-03-25 | 261 |
| 44 | 2452622 | 2002-12-13 | 259.5 |
| 45 | 2452878 | 2003-08-26 | 259.64 |
| 46 | 2453140 | 2004-05-14 | 260.07 |
| 47 | 2453399 | 2005-01-28 | 259.36 |
| 48 | 2453652 | 2005-10-08 | 259.36 |
| 49 | 2453913 | 2006-06-26 | 259.64 |
| 50 | 2454176 | 2007-03-16 | 259.43 |
| 51 | 2454436 | 2007-12-01 | 259.86 |
| 52 | 2454695 | 2008-08-16 | 260.64 |
| 53 | 2454958 | 2009-05-06 | 260.57 |
| 54 | 2455213 | 2010-01-16 | 261.36 |
| 55 | 2455476 | 2010-10-06 | 262.5 |
| 56 | 2455738 | 2011-06-25 | 261.14 |
| 57 | 2455999 | 2012-03-12 | 260.22 |
| 58 | 2456272 | 2012-12-10 | 260.85 |
| 59 | 2456534 | 2013-08-29 | 261.49 |
| 60 | 2456775 | 2014-04-27 | 262 |
| 61 | 2457039 | 2015-01-16 | 260.64 |
| 62 | 2457302 | 2015-10-06 | 259.42 |
| 63 | 2457573 | 2016-07-03 | 261.43 |
| 64 | 2457832 | 2017-03-19 | 263.22 |
| 65 | 2458088 | 2017-11-30 | 261.86 |
| 66 | 2458350 | 2018-08-19 | 260.36 |
| 67 | 2458619 | 2019-05-15 | 260.14 |
| 68 | 2458880 | 2020-01-31 | 260.43 |
| 69 | 2459127 | 2020-10-04 | 260.78 |
| 70 | 2459393 | 2021-06-27 | 259.63 |
| 71 | 2459654 | 2022-03-15 | 257.32 |
| 72 | 2459912 | 2022-11-28 | 256.58 |
| 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. |