| E | O (JD) | O (dat) | Period |
| -130 | 2412150 | 1892-02-21 | 244.27 |
| -121 | 2414360 | 1898-03-11 | 244.37 |
| -120 | 2414580 | 1898-10-17 | 244.56 |
| -118 | 2415080 | 1900-03-01 | 244.47 |
| -115 | 2415815 | 1902-03-06 | 244.53 |
| -114 | 2416060 | 1902-11-06 | 244.4 |
| -112 | 2416550 | 1904-03-10 | 244.45 |
| -111 | 2416800 | 1904-11-15 | 244.86 |
| -109 | 2417280 | 1906-03-10 | 244.6 |
| -108 | 2417530 | 1906-11-15 | 244.41 |
| -106 | 2418010 | 1908-03-09 | 244 |
| -105 | 2418260 | 1908-11-14 | 244.01 |
| -103 | 2418750 | 1910-03-19 | 244.07 |
| -102 | 2418999 | 1910-11-23 | 244.7 |
| -100 | 2419480 | 1912-03-18 | 245.12 |
| -99 | 2419715 | 1912-11-08 | 245.06 |
| -97 | 2420215 | 1914-03-23 | 244.72 |
| -96 | 2420460 | 1914-11-23 | 244.47 |
| -94 | 2420960 | 1916-04-06 | 244 |
| -93 | 2421210 | 1916-12-12 | 243.97 |
| -91 | 2421680 | 1918-03-27 | 243.58 |
| -87 | 2422660 | 1920-12-01 | 243.14 |
| -84 | 2423390 | 1922-12-01 | 243 |
| -79 | 2424600 | 1926-03-25 | 242.89 |
| -78 | 2424850 | 1926-11-30 | 243.04 |
| -76 | 2425324 | 1928-03-18 | 243.58 |
| -75 | 2425570 | 1928-11-19 | 243.72 |
| -73 | 2426062 | 1930-03-26 | 243.95 |
| -72 | 2426310 | 1930-11-29 | 244.29 |
| -70 | 2426798 | 1932-03-31 | 244.59 |
| -69 | 2427050 | 1932-12-08 | 244.93 |
| -67 | 2427534 | 1934-04-06 | 244.78 |
| -66 | 2427771 | 1934-11-29 | 244.18 |
| -64 | 2428260 | 1936-04-01 | 243.92 |
| -63 | 2428516 | 1936-12-13 | 244.04 |
| -61 | 2429000 | 1938-04-11 | 243.73 |
| -60 | 2429245 | 1938-12-12 | 243.93 |
| -58 | 2429720 | 1940-03-31 | 243.83 |
| -57 | 2429970 | 1940-12-06 | 243.75 |
| -54 | 2430710 | 1942-12-16 | 243.73 |
| -51 | 2431430 | 1944-12-05 | 244.06 |
| -48 | 2432169 | 1946-12-14 | 244.06 |
| -46 | 2432650 | 1948-04-08 | 244.34 |
| -45 | 2432900 | 1948-12-14 | 244.2 |
| -43 | 2433390 | 1950-04-18 | 244.26 |
| -42 | 2433640 | 1950-12-24 | 245.09 |
| -40 | 2434116 | 1952-04-13 | 245.28 |
| -39 | 2434370 | 1952-12-23 | 245.34 |
| -37 | 2434855 | 1954-04-22 | 245.37 |
| -34 | 2435590 | 1956-04-26 | 245.47 |
| -19 | 2439276 | 1966-05-30 | 245.56 |
| -18 | 2439525 | 1967-02-03 | 245.74 |
| -17 | 2439765 | 1967-10-01 | 245.69 |
| -15 | 2440260 | 1969-02-07 | 245.89 |
| -14 | 2440510 | 1969-10-15 | 246.06 |
| -12 | 2441000 | 1971-02-17 | 246.48 |
| -9 | 2441739 | 1973-02-25 | 246.56 |
| -8 | 2441980 | 1973-10-24 | 246.64 |
| -7 | 2442235 | 1974-07-06 | 246.59 |
| -6 | 2442481 | 1975-03-09 | 246.23 |
| -5 | 2442729 | 1975-11-12 | 245.79 |
| -3 | 2443221 | 1977-03-18 | 245.25 |
| -2 | 2443464 | 1977-11-16 | 244.48 |
| 0 | 2443960 | 1979-03-27 | 243.77 |
| 1 | 2444195 | 1979-11-17 | 243.15 |
| 3 | 2444681 | 1981-03-17 | 242.54 |
| 4 | 2444925 | 1981-11-16 | 242.29 |
| 6 | 2445404 | 1983-03-10 | 242.37 |
| 7 | 2445650 | 1983-11-11 | 242.16 |
| 9 | 2446130 | 1985-03-05 | 242.51 |
| 10 | 2446370 | 1985-10-31 | 242.48 |
| 12 | 2446863 | 1987-03-08 | 242.58 |
| 13 | 2447110 | 1987-11-10 | 242.83 |
| 15 | 2447587 | 1989-03-01 | 242.84 |
| 16 | 2447835 | 1989-11-04 | 242.92 |
| 18 | 2448315 | 1991-02-27 | 242.91 |
| 19 | 2448560 | 1991-10-30 | 242.61 |
| 21 | 2449048 | 1993-03-01 | 242.61 |
| 22 | 2449290 | 1993-10-29 | 242.99 |
| 24 | 2449774 | 1995-02-25 | 243.34 |
| 25 | 2450020 | 1995-10-29 | 243.74 |
| 27 | 2450501 | 1997-02-21 | 244.19 |
| 28 | 2450745 | 1997-10-23 | 244.58 |
| 30 | 2451237 | 1999-02-27 | 245.09 |
| 31 | 2451490 | 1999-11-07 | 245.11 |
| 33 | 2451974 | 2001-03-05 | 245.03 |
| 34 | 2452228 | 2001-11-14 | 244.85 |
| 36 | 2452714 | 2003-03-15 | 244.48 |
| 37 | 2452964 | 2003-11-20 | 244.33 |
| 39 | 2453440 | 2005-03-10 | 244.18 |
| 40 | 2453686 | 2005-11-11 | 244.41 |
| 42 | 2454170 | 2007-03-10 | 244.59 |
| 43 | 2454416 | 2007-11-11 | 244.84 |
| 45 | 2454914 | 2009-03-23 | 245.05 |
| 46 | 2455157 | 2009-11-21 | 245.74 |
| 48 | 2455650 | 2011-03-29 | 245.88 |
| 49 | 2455900 | 2011-12-04 | 245.94 |
| 51 | 2456382 | 2013-03-30 | 245.61 |
| 52 | 2456629 | 2013-12-02 | 245.87 |
| 54 | 2457127 | 2015-04-14 | 246.16 |
| 55 | 2457371 | 2015-12-14 | 246.08 |
| 57 | 2457859 | 2017-04-15 | 246.31 |
| 58 | 2458100 | 2017-12-12 | 246.42 |
| 60 | 2458610 | 2019-05-06 | 246.24 |
| 61 | 2458853 | 2020-01-04 | 245.85 |
| 62 | 2459090 | 2020-08-28 | 245.72 |
| 63 | 2459345 | 2021-05-10 | 245.25 |
| 64 | 2459581 | 2022-01-01 | 244.85 |
| 65 | 2459830 | 2022-09-07 | 243.57 |
| 66 | 2460070 | 2023-05-05 | 243.67 |
| 67 | 2460316 | 2024-01-06 | 243.79 |
| 68 | 2460555 | 2024-09-01 | 242.71 |
| 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. |