| E | O (JD) | O (dat) | Period |
| -119 | 2411670 | 1890-10-29 | 226.72 |
| -109 | 2413925 | 1896-12-31 | 227.12 |
| -106 | 2414615 | 1898-11-21 | 227.31 |
| -101 | 2415755 | 1902-01-05 | 227.18 |
| -100 | 2415975 | 1902-08-13 | 227 |
| -98 | 2416425 | 1903-11-06 | 226.75 |
| -96 | 2416900 | 1905-02-23 | 226.54 |
| -95 | 2417125 | 1905-10-06 | 227.35 |
| -93 | 2417564 | 1906-12-19 | 228.02 |
| -90 | 2418240 | 1908-10-25 | 228.39 |
| -88 | 2418685 | 1910-01-13 | 228.49 |
| -85 | 2419365 | 1911-11-24 | 228.32 |
| -79 | 2420780 | 1915-10-09 | 228.09 |
| -72 | 2422370 | 1920-02-15 | 227.93 |
| -69 | 2423055 | 1921-12-31 | 227.68 |
| -66 | 2423735 | 1923-11-11 | 227.46 |
| -63 | 2424405 | 1925-09-11 | 226.98 |
| -56 | 2425980 | 1930-01-03 | 226.19 |
| -51 | 2427115 | 1933-02-11 | 226.31 |
| -50 | 2427339 | 1933-09-23 | 226.43 |
| -47 | 2428029 | 1935-08-14 | 226.36 |
| -46 | 2428252 | 1936-03-24 | 226.21 |
| -45 | 2428481 | 1936-11-08 | 225.8 |
| -43 | 2428951 | 1938-02-21 | 224.93 |
| -42 | 2429170 | 1938-09-28 | 224.89 |
| -41 | 2429368 | 1939-04-14 | 225.44 |
| -40 | 2429580 | 1939-11-12 | 223.66 |
| -38 | 2430040 | 1941-02-14 | 223.93 |
| -37 | 2430270 | 1941-10-02 | 224.81 |
| -35 | 2430735 | 1943-01-10 | 225.47 |
| -29 | 2432100 | 1946-10-06 | 225.81 |
| -14 | 2435402 | 1955-10-21 | 226.06 |
| -9 | 2436557 | 1958-12-19 | 226.13 |
| -1 | 2438407 | 1964-01-12 | 226.27 |
| 0 | 2438650 | 1964-09-11 | 226.48 |
| 5 | 2439765 | 1967-10-01 | 226.97 |
| 10 | 2440910 | 1970-11-19 | 228.41 |
| 12 | 2441360 | 1972-02-12 | 227.67 |
| 13 | 2441593 | 1972-10-02 | 226.9 |
| 16 | 2442275 | 1974-08-15 | 226.43 |
| 18 | 2442719 | 1975-11-02 | 226.57 |
| 20 | 2443180 | 1977-02-05 | 226.15 |
| 21 | 2443400 | 1977-09-13 | 225.86 |
| 23 | 2443860 | 1978-12-17 | 225.66 |
| 26 | 2444520 | 1980-10-07 | 225.89 |
| 28 | 2444984 | 1982-01-14 | 226.01 |
| 29 | 2445210 | 1982-08-28 | 226.14 |
| 31 | 2445652 | 1983-11-13 | 226.63 |
| 33 | 2446110 | 1985-02-13 | 226.97 |
| 36 | 2446798 | 1987-01-02 | 227.82 |
| 38 | 2447243 | 1988-03-22 | 227.96 |
| 39 | 2447478 | 1988-11-12 | 228.28 |
| 41 | 2447939 | 1990-02-16 | 228.81 |
| 42 | 2448166 | 1990-10-01 | 228.91 |
| 44 | 2448631 | 1992-01-09 | 229.04 |
| 45 | 2448855 | 1992-08-20 | 229.08 |
| 47 | 2449308 | 1993-11-16 | 228.36 |
| 49 | 2449771 | 1995-02-22 | 227.54 |
| 50 | 2449999 | 1995-10-08 | 227 |
| 52 | 2450457 | 1997-01-08 | 226.57 |
| 53 | 2450681 | 1997-08-20 | 225.81 |
| 55 | 2451126 | 1998-11-08 | 224.81 |
| 57 | 2451572 | 2000-01-28 | 223.99 |
| 58 | 2451800 | 2000-09-12 | 223.5 |
| 60 | 2452259 | 2001-12-15 | 222.64 |
| 62 | 2452689 | 2003-02-18 | 222.43 |
| 63 | 2452906 | 2003-09-23 | 222.6 |
| 64 | 2453135 | 2004-05-09 | 222.35 |
| 65 | 2453357 | 2004-12-17 | 222.35 |
| 67 | 2453790 | 2006-02-23 | 222.65 |
| 68 | 2454021 | 2006-10-12 | 223.56 |
| 70 | 2454478 | 2008-01-12 | 224.39 |
| 71 | 2454690 | 2008-08-11 | 224.78 |
| 72 | 2454920 | 2009-03-29 | 225.49 |
| 73 | 2455147 | 2009-11-11 | 226.46 |
| 74 | 2455370 | 2010-06-22 | 225.73 |
| 75 | 2455609 | 2011-02-16 | 224.95 |
| 76 | 2455829 | 2011-09-24 | 224.54 |
| 77 | 2456055 | 2012-05-07 | 223.84 |
| 78 | 2456285 | 2012-12-23 | 223.67 |
| 80 | 2456720 | 2014-03-03 | 223.76 |
| 81 | 2456937 | 2014-10-06 | 223.64 |
| 82 | 2457160 | 2015-05-17 | 223.84 |
| 83 | 2457388 | 2015-12-31 | 223.96 |
| 84 | 2457620 | 2016-08-19 | 224.22 |
| 85 | 2457850 | 2017-04-06 | 225.32 |
| 86 | 2458073 | 2017-11-15 | 225.43 |
| 87 | 2458290 | 2018-06-20 | 225.32 |
| 88 | 2458515 | 2019-01-31 | 225.25 |
| 89 | 2458739 | 2019-09-12 | 225.17 |
| 90 | 2458971 | 2020-05-01 | 225.24 |
| 91 | 2459191 | 2020-12-07 | 225.77 |
| 92 | 2459420 | 2021-07-24 | 226.5 |
| 93 | 2459650 | 2022-03-11 | 226.71 |
| 94 | 2459874 | 2022-10-21 | 226.89 |
| 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. |