| E | O (JD) | O (dat) | Period |
| -155 | 2406715 | 1877-04-05 | 248.1 |
| -154 | 2406953 | 1877-11-29 | 247.25 |
| -153 | 2407204 | 1878-08-07 | 246.2 |
| -152 | 2407455 | 1879-04-15 | 247.52 |
| -151 | 2407702 | 1879-12-18 | 248.64 |
| -150 | 2407945 | 1880-08-17 | 248.43 |
| -149 | 2408190 | 1881-04-19 | 247 |
| -148 | 2408453 | 1882-01-07 | 246.06 |
| -147 | 2408696 | 1882-09-07 | 245.44 |
| -146 | 2408939 | 1883-05-08 | 244.56 |
| -144 | 2409425 | 1884-09-05 | 243.38 |
| -143 | 2409669 | 1885-05-07 | 243.12 |
| -142 | 2409905 | 1885-12-29 | 244.56 |
| -141 | 2410143 | 1886-08-24 | 246 |
| -140 | 2410394 | 1887-05-02 | 245.21 |
| -139 | 2410645 | 1888-01-08 | 244.64 |
| -138 | 2410903 | 1888-09-22 | 245.79 |
| -137 | 2411151 | 1889-05-28 | 246.14 |
| -136 | 2411376 | 1890-01-08 | 246.36 |
| -135 | 2411623 | 1890-09-12 | 245.07 |
| -134 | 2411866 | 1891-05-13 | 243.14 |
| -133 | 2412117 | 1892-01-19 | 244.79 |
| -132 | 2412371 | 1892-09-29 | 246.64 |
| -131 | 2412608 | 1893-05-24 | 246.07 |
| -130 | 2412850 | 1894-01-21 | 245.21 |
| -129 | 2413104 | 1894-10-02 | 244.79 |
| -128 | 2413348 | 1895-06-03 | 244.93 |
| -127 | 2413586 | 1896-01-27 | 245.5 |
| -126 | 2413830 | 1896-09-27 | 245.57 |
| -125 | 2414085 | 1897-06-09 | 245.36 |
| -124 | 2414323 | 1898-02-02 | 245.93 |
| -123 | 2414572 | 1898-10-09 | 246.86 |
| -122 | 2414820 | 1899-06-14 | 247.14 |
| -121 | 2415067 | 1900-02-16 | 247.07 |
| -120 | 2415310 | 1900-10-17 | 247 |
| -119 | 2415562 | 1901-06-26 | 247 |
| -118 | 2415813 | 1902-03-04 | 246.5 |
| -117 | 2416054 | 1902-10-31 | 246.21 |
| -116 | 2416299 | 1903-07-03 | 245.71 |
| -115 | 2416551 | 1904-03-11 | 244.5 |
| -114 | 2416787 | 1904-11-02 | 245.14 |
| -113 | 2417037 | 1905-07-10 | 245.79 |
| -112 | 2417275 | 1906-03-05 | 244.64 |
| -111 | 2417523 | 1906-11-08 | 245 |
| -110 | 2417776 | 1907-07-19 | 245.79 |
| -109 | 2418018 | 1908-03-17 | 246 |
| -108 | 2418257 | 1908-11-11 | 246.79 |
| -107 | 2418511 | 1909-07-23 | 245.36 |
| -106 | 2418754 | 1910-03-23 | 244.36 |
| -105 | 2419002 | 1910-11-26 | 245.14 |
| -104 | 2419251 | 1911-08-02 | 245.36 |
| -103 | 2419483 | 1912-03-21 | 245.29 |
| -102 | 2419732 | 1912-11-25 | 244.71 |
| -101 | 2419975 | 1913-07-26 | 243.93 |
| -100 | 2420228 | 1914-04-05 | 244.64 |
| -99 | 2420471 | 1914-12-04 | 244.86 |
| -98 | 2420711 | 1915-08-01 | 244.57 |
| -97 | 2420957 | 1916-04-03 | 244.43 |
| -96 | 2421202 | 1916-12-04 | 243.79 |
| -95 | 2421441 | 1917-07-31 | 244.36 |
| -94 | 2421690 | 1918-04-06 | 244.86 |
| -93 | 2421935 | 1918-12-07 | 244 |
| -92 | 2422177 | 1919-08-06 | 244 |
| -91 | 2422426 | 1920-04-11 | 244.57 |
| -90 | 2422670 | 1920-12-11 | 244 |
| -89 | 2422905 | 1921-08-03 | 243.64 |
| -88 | 2423154 | 1922-04-09 | 243.14 |
| -87 | 2423401 | 1922-12-12 | 242.64 |
| -86 | 2423640 | 1923-08-08 | 242.71 |
| -85 | 2423883 | 1924-04-07 | 242.07 |
| -84 | 2424124 | 1924-12-04 | 241.71 |
| -83 | 2424369 | 1925-08-06 | 242.5 |
| -82 | 2424604 | 1926-03-29 | 242.64 |
| -81 | 2424844 | 1926-11-24 | 242.36 |
| -80 | 2425095 | 1927-08-02 | 242.57 |
| -79 | 2425341 | 1928-04-04 | 243.5 |
| -78 | 2425579 | 1928-11-28 | 244.14 |
| -77 | 2425821 | 1929-07-28 | 243.36 |
| -76 | 2426068 | 1930-04-01 | 243.29 |
| -75 | 2426314 | 1930-12-03 | 244.79 |
| -74 | 2426552 | 1931-07-29 | 246.29 |
| -73 | 2426794 | 1932-03-27 | 246.36 |
| -72 | 2427048 | 1932-12-06 | 245.86 |
| -71 | 2427299 | 1933-08-14 | 246.29 |
| -70 | 2427549 | 1934-04-21 | 247.21 |
| -69 | 2427789 | 1934-12-17 | 247.29 |
| -68 | 2428035 | 1935-08-20 | 246.64 |
| -67 | 2428279 | 1936-04-20 | 245.79 |
| -66 | 2428528 | 1936-12-25 | 245.93 |
| -65 | 2428776 | 1937-08-30 | 246.5 |
| -64 | 2429024 | 1938-05-05 | 246.86 |
| -63 | 2429265 | 1939-01-01 | 247.57 |
| -62 | 2429516 | 1939-09-09 | 247.79 |
| -61 | 2429759 | 1940-05-09 | 248.21 |
| -60 | 2430011 | 1941-01-16 | 248.93 |
| -59 | 2430262 | 1941-09-24 | 248.93 |
| -58 | 2430511 | 1942-05-31 | 248.93 |
| -57 | 2430764 | 1943-02-08 | 248.71 |
| -56 | 2431010 | 1943-10-12 | 247.86 |
| -55 | 2431256 | 1944-06-14 | 247.36 |
| -54 | 2431504 | 1945-02-17 | 247.21 |
| -53 | 2431748 | 1945-10-19 | 247.21 |
| -52 | 2431995 | 1946-06-23 | 247.07 |
| -51 | 2432241 | 1947-02-24 | 246.43 |
| -50 | 2432495 | 1947-11-05 | 246.07 |
| -49 | 2432740 | 1948-07-07 | 246.36 |
| -48 | 2432985 | 1949-03-09 | 246.29 |
| -47 | 2433225 | 1949-11-04 | 245.71 |
| -46 | 2433472 | 1950-07-09 | 245.5 |
| -45 | 2433720 | 1951-03-14 | 245.29 |
| -44 | 2433964 | 1951-11-13 | 245.36 |
| -43 | 2434212 | 1952-07-18 | 245.86 |
| -42 | 2434460 | 1953-03-23 | 245.57 |
| -41 | 2434699 | 1953-11-17 | 245.21 |
| -40 | 2434946 | 1954-07-22 | 244.86 |
| -39 | 2435193 | 1955-03-26 | 244.64 |
| -38 | 2435437 | 1955-11-25 | 245.57 |
| -37 | 2435680 | 1956-07-25 | 245.86 |
| -36 | 2435924 | 1957-03-26 | 245 |
| -35 | 2436173 | 1957-11-30 | 245.21 |
| -34 | 2436424 | 1958-08-08 | 245.71 |
| -33 | 2436663 | 1959-04-04 | 245.71 |
| -32 | 2436906 | 1959-12-03 | 245.43 |
| -31 | 2437157 | 1960-08-10 | 244.86 |
| -30 | 2437400 | 1961-04-10 | 245.14 |
| -29 | 2437644 | 1961-12-10 | 245.36 |
| -28 | 2437889 | 1962-08-12 | 244.43 |
| -27 | 2438136 | 1963-04-16 | 244.36 |
| -26 | 2438383 | 1963-12-19 | 245.29 |
| -25 | 2438621 | 1964-08-13 | 245.36 |
| -24 | 2438864 | 1965-04-13 | 244.93 |
| -23 | 2439114 | 1965-12-19 | 244.5 |
| -22 | 2439364 | 1966-08-26 | 244.79 |
| -21 | 2439604 | 1967-04-23 | 244.93 |
| -20 | 2439850 | 1967-12-25 | 244.5 |
| -19 | 2440092 | 1968-08-23 | 244.29 |
| -18 | 2440339 | 1969-04-27 | 244.57 |
| -17 | 2440575 | 1969-12-19 | 245.64 |
| -16 | 2440826 | 1970-08-27 | 245.86 |
| -15 | 2441072 | 1971-04-30 | 245.71 |
| -14 | 2441320 | 1972-01-03 | 246.93 |
| -13 | 2441573 | 1972-09-12 | 247.86 |
| -12 | 2441811 | 1973-05-08 | 247.43 |
| -11 | 2442060 | 1974-01-12 | 247.5 |
| -10 | 2442311 | 1974-09-20 | 247.14 |
| -9 | 2442560 | 1975-05-27 | 246.71 |
| -8 | 2442802 | 1976-01-24 | 247.36 |
| -7 | 2443055 | 1976-10-03 | 247.5 |
| -6 | 2443298 | 1977-06-03 | 247.07 |
| -5 | 2443540 | 1978-01-31 | 246.93 |
| -4 | 2443794 | 1978-10-12 | 246.86 |
| -3 | 2444042 | 1979-06-17 | 246.86 |
| -2 | 2444288 | 1980-02-18 | 246.64 |
| -1 | 2444531 | 1980-10-18 | 246.43 |
| 0 | 2444782 | 1981-06-26 | 246.36 |
| 1 | 2445027 | 1982-02-26 | 246.07 |
| 2 | 2445264 | 1982-10-21 | 246.71 |
| 3 | 2445520 | 1983-07-04 | 247.14 |
| 4 | 2445765 | 1984-03-05 | 246.86 |
| 5 | 2446010 | 1984-11-05 | 247.57 |
| 6 | 2446263 | 1985-07-16 | 247 |
| 7 | 2446510 | 1986-03-20 | 245.79 |
| 8 | 2446755 | 1986-11-20 | 245.86 |
| 9 | 2447002 | 1987-07-25 | 245.21 |
| 10 | 2447240 | 1988-03-19 | 244.43 |
| 11 | 2447486 | 1988-11-20 | 244.43 |
| 12 | 2447731 | 1989-07-23 | 244.79 |
| 13 | 2447975 | 1990-03-24 | 245.21 |
| 14 | 2448220 | 1990-11-24 | 245.29 |
| 15 | 2448467 | 1991-07-29 | 245.07 |
| 16 | 2448717 | 1992-04-04 | 245.86 |
| 17 | 2448958 | 1992-12-01 | 246.71 |
| 18 | 2449202 | 1993-08-02 | 246.36 |
| 19 | 2449446 | 1994-04-03 | 246.07 |
| 20 | 2449702 | 1994-12-15 | 246.79 |
| 21 | 2449947 | 1995-08-17 | 247.43 |
| 22 | 2450189 | 1996-04-15 | 247.71 |
| 23 | 2450440 | 1996-12-22 | 247.21 |
| 24 | 2450690 | 1997-08-29 | 246.07 |
| 25 | 2450934 | 1998-04-30 | 245.79 |
| 26 | 2451182 | 1999-01-03 | 245.21 |
| 27 | 2451427 | 1999-09-05 | 244.57 |
| 28 | 2451667 | 2000-05-02 | 244.64 |
| 29 | 2451910 | 2000-12-31 | 244.5 |
| 30 | 2452152 | 2001-08-30 | 244.71 |
| 31 | 2452402 | 2002-05-07 | 245.29 |
| 32 | 2452647 | 2003-01-07 | 245.43 |
| 33 | 2452892 | 2003-09-09 | 246.43 |
| 34 | 2453143 | 2004-05-17 | 247.36 |
| 35 | 2453385 | 2005-01-14 | 247.43 |
| 36 | 2453628 | 2005-09-14 | 247.64 |
| 37 | 2453884 | 2006-05-28 | 248 |
| 38 | 2454133 | 2007-02-01 | 248.07 |
| 39 | 2454380 | 2007-10-06 | 248.14 |
| 40 | 2454626 | 2008-06-08 | 248.36 |
| 41 | 2454881 | 2009-02-18 | 248.71 |
| 42 | 2455120 | 2009-10-15 | 249.57 |
| 43 | 2455367 | 2010-06-19 | 250.14 |
| 44 | 2455622 | 2011-03-01 | 250.21 |
| 45 | 2455877 | 2011-11-11 | 250.07 |
| 46 | 2456130 | 2012-07-21 | 250.29 |
| 47 | 2456378 | 2013-03-26 | 249.57 |
| 48 | 2456632 | 2013-12-05 | 248.43 |
| 49 | 2456870 | 2014-07-31 | 247.86 |
| 50 | 2457121 | 2015-04-08 | 247.43 |
| 51 | 2457362 | 2015-12-05 | 246.79 |
| 52 | 2457615 | 2016-08-14 | 246.14 |
| 53 | 2457862 | 2017-04-18 | 246 |
| 54 | 2458110 | 2017-12-22 | 245.79 |
| 55 | 2458355 | 2018-08-24 | 245.43 |
| 56 | 2458593 | 2019-04-19 | 245.86 |
| 57 | 2458842 | 2019-12-24 | 245.5 |
| 58 | 2459082 | 2020-08-20 | 244.33 |
| 59 | 2459331 | 2021-04-26 | 245.37 |
| 60 | 2459588 | 2022-01-08 | 246 |
| 61 | 2459821 | 2022-08-29 | 245.4 |
| 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. |