| E | O (JD) | O (dat) | Period |
| -95 | 2415980 | 1902-08-18 | 379.89 |
| -94 | 2416340 | 1903-08-13 | 379.84 |
| -92 | 2417100 | 1905-09-11 | 380.33 |
| -90 | 2417865 | 1907-10-16 | 380.5 |
| -88 | 2418620 | 1909-11-09 | 380.16 |
| -86 | 2419395 | 1911-12-24 | 380.18 |
| -84 | 2420145 | 1914-01-12 | 377.55 |
| -83 | 2420537 | 1915-02-08 | 376.38 |
| -82 | 2420915 | 1916-02-21 | 375.76 |
| -81 | 2421280 | 1917-02-20 | 375.28 |
| -80 | 2421670 | 1918-03-17 | 375 |
| -65 | 2427280 | 1933-07-26 | 375.08 |
| -64 | 2427650 | 1934-07-31 | 374.95 |
| -63 | 2428030 | 1935-08-15 | 375.1 |
| -62 | 2428400 | 1936-08-19 | 375.46 |
| -61 | 2428790 | 1937-09-13 | 375.8 |
| -60 | 2429178 | 1938-10-06 | 380.55 |
| -59 | 2429541 | 1939-10-04 | 381.16 |
| -58 | 2429925 | 1940-10-22 | 380.96 |
| -57 | 2430310 | 1941-11-11 | 380.65 |
| -56 | 2430696 | 1942-12-02 | 378.9 |
| -55 | 2431087 | 1943-12-28 | 378.77 |
| -54 | 2431455 | 1944-12-30 | 378.52 |
| -53 | 2431828 | 1946-01-07 | 378.38 |
| -52 | 2432205 | 1947-01-19 | 378.38 |
| -32 | 2439780 | 1967-10-16 | 378.4 |
| -31 | 2440159 | 1968-10-29 | 378.53 |
| -30 | 2440520 | 1969-10-25 | 378.85 |
| -29 | 2440910 | 1970-11-19 | 379.15 |
| -28 | 2441300 | 1971-12-14 | 379.46 |
| -27 | 2441680 | 1972-12-28 | 382.18 |
| -26 | 2442068 | 1974-01-20 | 382.85 |
| -25 | 2442452 | 1975-02-08 | 383.99 |
| -24 | 2442834 | 1976-02-25 | 383.6 |
| -23 | 2443208 | 1977-03-05 | 383.81 |
| -22 | 2443590 | 1978-03-22 | 384.25 |
| -21 | 2443979 | 1979-04-15 | 384.83 |
| -19 | 2444757 | 1981-06-01 | 385.66 |
| -18 | 2445133 | 1982-06-12 | 386.02 |
| -17 | 2445525 | 1983-07-09 | 386.5 |
| -16 | 2445910 | 1984-07-28 | 385.98 |
| -15 | 2446303 | 1985-08-25 | 384.72 |
| -14 | 2446692 | 1986-09-18 | 383.39 |
| -13 | 2447066 | 1987-09-27 | 382.26 |
| -12 | 2447456 | 1988-10-21 | 380.64 |
| -11 | 2447829 | 1989-10-29 | 379.55 |
| -10 | 2448202 | 1990-11-06 | 378.43 |
| -9 | 2448583 | 1991-11-22 | 377.98 |
| -8 | 2448958 | 1992-12-01 | 378.02 |
| -7 | 2449336 | 1993-12-14 | 377.59 |
| -6 | 2449718 | 1994-12-31 | 377.45 |
| -5 | 2450094 | 1996-01-11 | 377.97 |
| -4 | 2450474 | 1997-01-25 | 377.75 |
| -3 | 2450852 | 1998-02-07 | 378.47 |
| -2 | 2451225 | 1999-02-15 | 378.34 |
| -1 | 2451595 | 2000-02-20 | 378.91 |
| 0 | 2451990 | 2001-03-21 | 378.92 |
| 1 | 2452358 | 2002-03-24 | 379.59 |
| 2 | 2452753 | 2003-04-23 | 379.91 |
| 3 | 2453118 | 2004-04-22 | 380.64 |
| 4 | 2453512 | 2005-05-21 | 380.77 |
| 6 | 2454256 | 2007-06-04 | 380.34 |
| 7 | 2454651 | 2008-07-03 | 380.48 |
| 8 | 2455024 | 2009-07-11 | 380.46 |
| 9 | 2455415 | 2010-08-06 | 380.76 |
| 10 | 2455789 | 2011-08-15 | 380.33 |
| 11 | 2456167 | 2012-08-27 | 380.71 |
| 12 | 2456546 | 2013-09-10 | 380.29 |
| 13 | 2456936 | 2014-10-05 | 380.62 |
| 14 | 2457308 | 2015-10-12 | 380.84 |
| 15 | 2457689 | 2016-10-27 | 380.89 |
| 16 | 2458071 | 2017-11-13 | 381.01 |
| 17 | 2458454 | 2018-12-01 | 380.97 |
| 18 | 2458836 | 2019-12-18 | 380.68 |
| 19 | 2459223 | 2021-01-08 | 381.39 |
| 20 | 2459590 | 2022-01-10 | 381.23 |
| 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. |