| E | O (JD) | O (dat) | Period |
| -101 | 2425550 | 1928-10-30 | 148.89 |
| -99 | 2425860 | 1929-09-05 | 148.86 |
| -97 | 2426160 | 1930-07-02 | 147.93 |
| -94 | 2426610 | 1931-09-25 | 147.68 |
| -91 | 2427050 | 1932-12-08 | 147.47 |
| -87 | 2427645 | 1934-07-26 | 147.39 |
| -30 | 2436060 | 1957-08-09 | 147.31 |
| -27 | 2436472 | 1958-09-25 | 147.2 |
| -2 | 2440155 | 1968-10-25 | 147.2 |
| 0 | 2440459 | 1969-08-25 | 147 |
| 3 | 2440890 | 1970-10-30 | 146.79 |
| 5 | 2441180 | 1971-08-16 | 147.16 |
| 8 | 2441630 | 1972-11-08 | 146.85 |
| 10 | 2441920 | 1973-08-25 | 146.7 |
| 13 | 2442355 | 1974-11-03 | 146.57 |
| 15 | 2442660 | 1975-09-04 | 145.79 |
| 16 | 2442800 | 1976-01-22 | 145.25 |
| 20 | 2443390 | 1977-09-03 | 145.12 |
| 23 | 2443810 | 1978-10-28 | 145.12 |
| 28 | 2444540 | 1980-10-27 | 145.37 |
| 30 | 2444820 | 1981-08-03 | 145.13 |
| 33 | 2445260 | 1982-10-17 | 145.14 |
| 35 | 2445560 | 1983-08-13 | 146.09 |
| 37 | 2445860 | 1984-06-08 | 146.5 |
| 38 | 2445990 | 1984-10-16 | 146.83 |
| 40 | 2446290 | 1985-08-12 | 146.83 |
| 43 | 2446735 | 1986-10-31 | 146.61 |
| 45 | 2447020 | 1987-08-12 | 147.18 |
| 48 | 2447465 | 1988-10-30 | 148 |
| 50 | 2447760 | 1989-08-21 | 147.91 |
| 53 | 2448205 | 1990-11-09 | 147.91 |
| 55 | 2448502 | 1991-09-02 | 148.16 |
| 58 | 2448958 | 1992-12-01 | 148.13 |
| 60 | 2449244 | 1993-09-13 | 148.21 |
| 62 | 2449540 | 1994-07-06 | 148.15 |
| 63 | 2449686 | 1994-11-29 | 147.52 |
| 65 | 2449983 | 1995-09-22 | 147.04 |
| 67 | 2450280 | 1996-07-15 | 147.22 |
| 68 | 2450427 | 1996-12-09 | 147.43 |
| 70 | 2450721 | 1997-09-29 | 147.13 |
| 72 | 2451010 | 1998-07-15 | 146.74 |
| 73 | 2451160 | 1998-12-12 | 146.73 |
| 75 | 2451457 | 1999-10-05 | 146.86 |
| 77 | 2451743 | 2000-07-17 | 147.25 |
| 78 | 2451895 | 2000-12-16 | 147.1 |
| 79 | 2452040 | 2001-05-10 | 146.37 |
| 80 | 2452192 | 2001-10-09 | 146.53 |
| 82 | 2452484 | 2002-07-28 | 146.41 |
| 83 | 2452628 | 2002-12-19 | 145.72 |
| 84 | 2452770 | 2003-05-10 | 145.11 |
| 85 | 2452921 | 2003-10-08 | 144.55 |
| 87 | 2453206 | 2004-07-19 | 144.45 |
| 88 | 2453352 | 2004-12-12 | 144.86 |
| 90 | 2453637 | 2005-09-23 | 144.7 |
| 92 | 2453930 | 2006-07-13 | 144.52 |
| 93 | 2454071 | 2006-12-01 | 145.52 |
| 95 | 2454369 | 2007-09-25 | 146.17 |
| 97 | 2454650 | 2008-07-02 | 146.57 |
| 98 | 2454801 | 2008-11-30 | 146.7 |
| 100 | 2455104 | 2009-09-29 | 146.67 |
| 102 | 2455393 | 2010-07-15 | 147.43 |
| 103 | 2455545 | 2010-12-14 | 148 |
| 105 | 2455830 | 2011-09-25 | 147.76 |
| 107 | 2456130 | 2012-07-21 | 147.9 |
| 108 | 2456280 | 2012-12-18 | 147.8 |
| 109 | 2456427 | 2013-05-14 | 147.84 |
| 110 | 2456581 | 2013-10-15 | 147.82 |
| 112 | 2456874 | 2014-08-04 | 147.53 |
| 113 | 2457020 | 2014-12-28 | 147.42 |
| 114 | 2457164 | 2015-05-21 | 146.85 |
| 115 | 2457309 | 2015-10-13 | 146.35 |
| 117 | 2457609 | 2016-08-08 | 146.35 |
| 119 | 2457899 | 2017-05-25 | 146.5 |
| 120 | 2458046 | 2017-10-19 | 146.45 |
| 122 | 2458336 | 2018-08-05 | 146.58 |
| 123 | 2458485 | 2019-01-01 | 146.82 |
| 124 | 2458629 | 2019-05-25 | 147.12 |
| 125 | 2458773 | 2019-10-16 | 147.53 |
| 126 | 2458930 | 2020-03-21 | 147.43 |
| 127 | 2459074 | 2020-08-12 | 147.53 |
| 128 | 2459225 | 2021-01-10 | 148.37 |
| 129 | 2459370 | 2021-06-04 | 148.03 |
| 130 | 2459515 | 2021-10-27 | 147.23 |
| 132 | 2459812 | 2022-08-20 | 147.82 |
| 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. |