| E | O (JD) | O (dat) | Period |
| -155 | 2413780 | 1896-08-08 | 198.12 |
| -154 | 2413988 | 1897-03-04 | 198.06 |
| -135 | 2417786 | 1907-07-29 | 197.89 |
| -118 | 2421130 | 1916-09-23 | 198.02 |
| -106 | 2423506 | 1923-03-27 | 198.08 |
| -105 | 2423700 | 1923-10-07 | 197.73 |
| -104 | 2423893 | 1924-04-17 | 197.44 |
| -103 | 2424083 | 1924-10-24 | 197.5 |
| -102 | 2424285 | 1925-05-14 | 197.45 |
| -101 | 2424494 | 1925-12-09 | 197.95 |
| -99 | 2424886 | 1927-01-05 | 199.5 |
| -97 | 2425280 | 1928-02-03 | 200.09 |
| -96 | 2425480 | 1928-08-21 | 199.13 |
| -95 | 2425676 | 1929-03-05 | 198.57 |
| -92 | 2426290 | 1930-11-09 | 199.2 |
| -91 | 2426480 | 1931-05-18 | 200.47 |
| -90 | 2426680 | 1931-12-04 | 200.8 |
| -89 | 2426870 | 1932-06-11 | 199.81 |
| -87 | 2427280 | 1933-07-26 | 199.12 |
| -85 | 2427690 | 1934-09-09 | 199.07 |
| -76 | 2429490 | 1939-08-14 | 199.41 |
| -68 | 2431068 | 1943-12-09 | 199.58 |
| -64 | 2431857 | 1946-02-05 | 199 |
| -63 | 2432053 | 1946-08-20 | 198.38 |
| -62 | 2432265 | 1947-03-20 | 198.22 |
| -61 | 2432463 | 1947-10-04 | 199.53 |
| -60 | 2432656 | 1948-04-14 | 200.75 |
| -59 | 2432856 | 1948-10-31 | 199.24 |
| -57 | 2433252 | 1949-12-01 | 198.87 |
| -56 | 2433464 | 1950-07-01 | 199.94 |
| -55 | 2433658 | 1951-01-11 | 200.37 |
| -54 | 2433848 | 1951-07-20 | 200.66 |
| -53 | 2434062 | 1952-02-19 | 199.29 |
| -52 | 2434256 | 1952-08-31 | 198.95 |
| -51 | 2434462 | 1953-03-25 | 200.16 |
| -50 | 2434656 | 1953-10-05 | 201.08 |
| -49 | 2434850 | 1954-04-17 | 200.08 |
| -43 | 2436052 | 1957-08-01 | 198.65 |
| -41 | 2436458 | 1958-09-11 | 198.64 |
| -40 | 2436680 | 1959-04-21 | 198.73 |
| -39 | 2436840 | 1959-09-28 | 198.57 |
| -21 | 2440420 | 1969-07-17 | 198.07 |
| -19 | 2440815 | 1970-08-16 | 197.56 |
| -17 | 2441211 | 1971-09-16 | 198 |
| -15 | 2441605 | 1972-10-14 | 198.85 |
| -13 | 2441997 | 1973-11-10 | 199.3 |
| -11 | 2442402 | 1974-12-20 | 199.14 |
| -10 | 2442602 | 1975-07-08 | 198.89 |
| -9 | 2442811 | 1976-02-02 | 198.99 |
| -8 | 2443008 | 1976-08-17 | 198.4 |
| -7 | 2443200 | 1977-02-25 | 197.43 |
| -6 | 2443395 | 1977-09-08 | 196.5 |
| -5 | 2443590 | 1978-03-22 | 196.36 |
| -4 | 2443785 | 1978-10-03 | 197 |
| -3 | 2443983 | 1979-04-19 | 196.93 |
| -2 | 2444181 | 1979-11-03 | 197.43 |
| -1 | 2444387 | 1980-05-27 | 198.36 |
| 0 | 2444579 | 1980-12-05 | 198.86 |
| 1 | 2444773 | 1981-06-17 | 198.43 |
| 2 | 2444976 | 1982-01-06 | 197.5 |
| 3 | 2445176 | 1982-07-25 | 197.64 |
| 4 | 2445376 | 1983-02-10 | 198.14 |
| 5 | 2445566 | 1983-08-19 | 197.93 |
| 6 | 2445767 | 1984-03-07 | 197.86 |
| 7 | 2445966 | 1984-09-22 | 198.22 |
| 8 | 2446160 | 1985-04-04 | 198.57 |
| 9 | 2446360 | 1985-10-21 | 198.99 |
| 10 | 2446562 | 1986-05-11 | 199.57 |
| 11 | 2446765 | 1986-11-30 | 199.92 |
| 12 | 2446957 | 1987-06-10 | 199.85 |
| 13 | 2447162 | 1988-01-01 | 199.72 |
| 14 | 2447365 | 1988-07-22 | 199.64 |
| 15 | 2447560 | 1989-02-02 | 200.07 |
| 16 | 2447758 | 1989-08-19 | 200.43 |
| 17 | 2447960 | 1990-03-09 | 200.14 |
| 18 | 2448162 | 1990-09-27 | 199.72 |
| 19 | 2448361 | 1991-04-14 | 199.36 |
| 20 | 2448564 | 1991-11-03 | 199.36 |
| 21 | 2448765 | 1992-05-22 | 200.07 |
| 22 | 2448956 | 1992-11-29 | 200.79 |
| 23 | 2449153 | 1993-06-14 | 200 |
| 24 | 2449356 | 1994-01-03 | 198.79 |
| 25 | 2449567 | 1994-08-02 | 198.86 |
| 26 | 2449767 | 1995-02-18 | 199.14 |
| 27 | 2449958 | 1995-08-28 | 199.43 |
| 28 | 2450154 | 1996-03-11 | 199.28 |
| 29 | 2450351 | 1996-09-24 | 198.42 |
| 30 | 2450546 | 1997-04-07 | 198.29 |
| 31 | 2450755 | 1997-11-02 | 198.43 |
| 32 | 2450958 | 1998-05-24 | 198.79 |
| 33 | 2451154 | 1998-12-06 | 199.5 |
| 34 | 2451347 | 1999-06-17 | 199 |
| 35 | 2451543 | 1999-12-30 | 198.36 |
| 36 | 2451745 | 2000-07-19 | 198.43 |
| 37 | 2451945 | 2001-02-04 | 198.79 |
| 38 | 2452142 | 2001-08-20 | 199.71 |
| 39 | 2452348 | 2002-03-14 | 199.78 |
| 40 | 2452542 | 2002-09-24 | 199.14 |
| 41 | 2452742 | 2003-04-12 | 199.14 |
| 42 | 2452944 | 2003-10-31 | 199.42 |
| 43 | 2453141 | 2004-05-15 | 199.93 |
| 44 | 2453337 | 2004-11-27 | 200.22 |
| 45 | 2453538 | 2005-06-16 | 199.86 |
| 46 | 2453744 | 2006-01-08 | 199.57 |
| 47 | 2453945 | 2006-07-28 | 199.64 |
| 48 | 2454142 | 2007-02-10 | 199.72 |
| 49 | 2454342 | 2007-08-29 | 198.79 |
| 50 | 2454537 | 2008-03-11 | 198.5 |
| 51 | 2454736 | 2008-09-26 | 198.36 |
| 52 | 2454935 | 2009-04-13 | 197.5 |
| 53 | 2455130 | 2009-10-25 | 197.93 |
| 54 | 2455338 | 2010-05-21 | 198.57 |
| 55 | 2455526 | 2010-11-25 | 199.07 |
| 56 | 2455723 | 2011-06-10 | 199.57 |
| 57 | 2455927 | 2011-12-31 | 199 |
| 58 | 2456126 | 2012-07-17 | 198.64 |
| 59 | 2456332 | 2013-02-08 | 199.49 |
| 60 | 2456527 | 2013-08-22 | 200.22 |
| 61 | 2456727 | 2014-03-10 | 199.99 |
| 62 | 2456918 | 2014-09-17 | 198.78 |
| 63 | 2457124 | 2015-04-11 | 198.36 |
| 64 | 2457329 | 2015-11-02 | 198.72 |
| 65 | 2457524 | 2016-05-15 | 198.57 |
| 66 | 2457717 | 2016-11-24 | 198.22 |
| 67 | 2457919 | 2017-06-14 | 197.79 |
| 68 | 2458117 | 2017-12-29 | 197.64 |
| 69 | 2458308 | 2018-07-08 | 197.64 |
| 70 | 2458509 | 2019-01-25 | 197.79 |
| 71 | 2458713 | 2019-08-17 | 197.79 |
| 72 | 2458907 | 2020-02-27 | 198 |
| 73 | 2459101 | 2020-09-08 | 198.07 |
| 74 | 2459304 | 2021-03-30 | 197.38 |
| 75 | 2459501 | 2021-10-13 | 196.92 |
| 76 | 2459696 | 2022-04-26 | 198.26 |
| 77 | 2459894 | 2022-11-10 | 199.11 |
| 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. |