E | Mag | O (JD) | O (dat) | C (JD) | C (Dat) | O-C | Source |
-157 | 2412718 | 1893-09-11 | 2412721 | 1893-09-14 | -3 | AnHar, 1909, vol 55, p 95 | |
-152 | 2413770 | 1896-07-29 | 2413765 | 1896-07-24 | 5 | SVO | |
-150 | 2414170 | 1897-09-02 | 2414182 | 1897-09-14 | -12 | SVO | |
-148 | 2414595 | 1898-11-01 | 2414599 | 1898-11-05 | -4 | SVO | |
-146 | 2415020 | 1899-12-31 | 2415017 | 1899-12-28 | 3 | SVO | |
-145 | 2415230 | 1900-07-29 | 2415225 | 1900-07-24 | 5 | SVO | |
-143 | 2415650 | 1901-09-22 | 2415643 | 1901-09-15 | 7 | AnHar, 1909, vol 55, p 95 | |
-141 | 2416070 | 1902-11-16 | 2416060 | 1902-11-06 | 10 | SVO | |
-140 | 2416265 | 1903-05-30 | 2416269 | 1903-06-03 | -4 | SVO | |
-139 | 2416476 | 1903-12-27 | 2416477 | 1903-12-28 | -1 | SVO | |
-138 | 2416692 | 1904-07-30 | 2416686 | 1904-07-24 | 6 | SVO | |
-136 | 2417109 | 1905-09-20 | 2417103 | 1905-09-14 | 6 | SVO | |
-134 | 2417517 | 1906-11-02 | 2417521 | 1906-11-06 | -4 | SVO | |
-133 | 2417730 | 1907-06-03 | 2417729 | 1907-06-02 | 1 | SVO | |
-132 | 2417930 | 1907-12-20 | 2417938 | 1907-12-28 | -8 | SVO | |
-131 | 2418142 | 1908-07-19 | 2418147 | 1908-07-24 | -5 | SVO | |
-129 | 2418544 | 1909-08-25 | 2418564 | 1909-09-14 | -20 | SVO | |
-127 | 2418984 | 1910-11-08 | 2418982 | 1910-11-06 | 2 | AAVSO | |
-125 | 2419393 | 1911-12-22 | 2419399 | 1911-12-28 | -6 | GuL, 1920, 1.2 | |
-124 | 2419610 | 1912-07-26 | 2419608 | 1912-07-24 | 2 | SVO | |
-122 | 2420034 | 1913-09-23 | 2420025 | 1913-09-14 | 9 | AAVSO | |
-120 | 2420455 | 1914-11-18 | 2420442 | 1914-11-05 | 13 | SVO | |
-119 | 2420676 | 1915-06-27 | 2420651 | 1915-06-02 | 25 | AAVSO | |
-118 | 9.7 | 2420880 | 1916-01-17 | 2420860 | 1915-12-28 | 20 | AAVSO |
-117 | 9.8 | 2421092 | 1916-08-16 | 2421068 | 1916-07-23 | 24 | SVO |
-116 | 9.6 | 2421306 | 1917-03-18 | 2421277 | 1917-02-17 | 29 | AAVSO |
-115 | 10.8 | 2421510 | 1917-10-08 | 2421486 | 1917-09-14 | 24 | SVO |
-114 | 9.7 | 2421726 | 1918-05-12 | 2421694 | 1918-04-10 | 32 | AAVSO |
-113 | 10.1 | 2421927 | 1918-11-29 | 2421903 | 1918-11-05 | 24 | SVO |
-112 | 2422136 | 1919-06-26 | 2422112 | 1919-06-02 | 24 | AAVSO | |
-111 | 9.6 | 2422343 | 1920-01-19 | 2422320 | 1919-12-27 | 23 | AAVSO |
-110 | 2422546 | 1920-08-09 | 2422529 | 1920-07-23 | 17 | SVO | |
-109 | 2422756 | 1921-03-07 | 2422738 | 1921-02-17 | 18 | AAVSO | |
-108 | 9.7 | 2422965 | 1921-10-02 | 2422946 | 1921-09-13 | 19 | SVO |
-107 | 9.6 | 2423181 | 1922-05-06 | 2423155 | 1922-04-10 | 26 | AAVSO |
-106 | 9.5 | 2423382 | 1922-11-23 | 2423364 | 1922-11-05 | 18 | SVO |
-105 | 9.9 | 2423601 | 1923-06-30 | 2423572 | 1923-06-01 | 29 | SVO |
-104 | 9.5 | 2423803 | 1924-01-18 | 2423781 | 1923-12-27 | 22 | SVO |
-103 | 9.7 | 2424001 | 1924-08-03 | 2423990 | 1924-07-23 | 11 | SVO |
-102 | 2424212 | 1925-03-02 | 2424199 | 1925-02-17 | 13 | AAVSO | |
-101 | 10.2 | 2424424 | 1925-09-30 | 2424407 | 1925-09-13 | 17 | SVO |
-100 | 8.8 | 2424624 | 1926-04-18 | 2424616 | 1926-04-10 | 8 | AAVSO |
-99 | 10.0 | 2424850 | 1926-11-30 | 2424825 | 1926-11-05 | 25 | SVO |
-98 | 9.4 | 2425049 | 1927-06-17 | 2425033 | 1927-06-01 | 16 | SVO |
-97 | 9.4 | 2425261 | 1928-01-15 | 2425242 | 1927-12-27 | 19 | AAVSO |
-96 | 10.2 | 2425480 | 1928-08-21 | 2425451 | 1928-07-23 | 29 | SVO |
-95 | 2425675 | 1929-03-04 | 2425659 | 1929-02-16 | 16 | AAVSO | |
-94 | 9.4 | 2425883 | 1929-09-28 | 2425868 | 1929-09-13 | 15 | SVO |
-93 | 10.1 | 2426102 | 1930-05-05 | 2426077 | 1930-04-10 | 25 | SVO |
-92 | 9.3 | 2426298 | 1930-11-17 | 2426285 | 1930-11-04 | 13 | SVO |
-91 | 9.7 | 2426511 | 1931-06-18 | 2426494 | 1931-06-01 | 17 | SVO |
-90 | 9.2 | 2426716 | 1932-01-09 | 2426703 | 1931-12-27 | 13 | SVO |
-89 | 10.1 | 2426927 | 1932-08-07 | 2426911 | 1932-07-22 | 16 | SVO |
-88 | 9.9 | 2427136 | 1933-03-04 | 2427120 | 1933-02-16 | 16 | SVO |
-87 | 9.6 | 2427331 | 1933-09-15 | 2427329 | 1933-09-13 | 2 | SVO |
-86 | 9.7 | 2427540 | 1934-04-12 | 2427537 | 1934-04-09 | 3 | AAVSO |
-85 | 11.0 | 2427746 | 1934-11-04 | 2427746 | 1934-11-04 | 0 | SVO |
-84 | 9.4 | 2427940 | 1935-05-17 | 2427955 | 1935-06-01 | -15 | AAVSO |
-83 | 10.6 | 2428164 | 1935-12-27 | 2428163 | 1935-12-26 | 1 | SVO |
-82 | 9.9 | 2428368 | 1936-07-18 | 2428372 | 1936-07-22 | -4 | SVO |
-81 | 9.0 | 2428564 | 1937-01-30 | 2428581 | 1937-02-16 | -17 | AAVSO |
-80 | 10.1 | 2428782 | 1937-09-05 | 2428789 | 1937-09-12 | -7 | SVO |
-79 | 2428994 | 1938-04-05 | 2428998 | 1938-04-09 | -4 | AAVSO | |
-78 | 10.0 | 2429200 | 1938-10-28 | 2429207 | 1938-11-04 | -7 | SVO |
-77 | 9.6 | 2429411 | 1939-05-27 | 2429416 | 1939-06-01 | -5 | AAVSO |
-76 | 9.5 | 2429619 | 1939-12-21 | 2429624 | 1939-12-26 | -5 | SVO |
-75 | 9.4 | 2429812 | 1940-07-01 | 2429833 | 1940-07-22 | -21 | AAVSO |
-74 | 9.7 | 2430034 | 1941-02-08 | 2430042 | 1941-02-16 | -8 | AAVSO |
-73 | 9.5 | 2430240 | 1941-09-02 | 2430250 | 1941-09-12 | -10 | SVO |
-71 | 10.3 | 2430667 | 1942-11-03 | 2430668 | 1942-11-04 | -1 | SVO |
-70 | 9.9 | 2430874 | 1943-05-29 | 2430876 | 1943-05-31 | -2 | AAVSO |
-69 | 10.0 | 2431075 | 1943-12-16 | 2431085 | 1943-12-26 | -10 | SVO |
-68 | 9.6 | 2431283 | 1944-07-11 | 2431294 | 1944-07-22 | -11 | SVO |
-67 | 9.8 | 2431490 | 1945-02-03 | 2431502 | 1945-02-15 | -12 | AAVSO |
-66 | 9.8 | 2431703 | 1945-09-04 | 2431711 | 1945-09-12 | -8 | SVO |
-64 | 9.9 | 2432117 | 1946-10-23 | 2432128 | 1946-11-03 | -11 | SVO |
-63 | 2432330 | 1947-05-24 | 2432337 | 1947-05-31 | -7 | AAVSO | |
-62 | 9.3 | 2432536 | 1947-12-16 | 2432546 | 1947-12-26 | -10 | SVO |
-61 | 10.0 | 2432758 | 1948-07-25 | 2432754 | 1948-07-21 | 4 | AAVSO |
-60 | 9.7 | 2432966 | 1949-02-18 | 2432963 | 1949-02-15 | 3 | AAVSO |
-59 | 9.9 | 2433167 | 1949-09-07 | 2433172 | 1949-09-12 | -5 | SVO |
-58 | 2433387 | 1950-04-15 | 2433380 | 1950-04-08 | 7 | AAVSO | |
-57 | 10.2 | 2433588 | 1950-11-02 | 2433589 | 1950-11-03 | -1 | SVO |
-56 | 2433795 | 1951-05-28 | 2433798 | 1951-05-31 | -3 | AAVSO | |
-55 | 10.4 | 2433993 | 1951-12-12 | 2434006 | 1951-12-25 | -13 | SVO |
-54 | 10.2 | 2434219 | 1952-07-25 | 2434215 | 1952-07-21 | 4 | AAVSO |
-53 | 9.5 | 2434415 | 1953-02-06 | 2434424 | 1953-02-15 | -9 | AAVSO |
-52 | 9.6 | 2434622 | 1953-09-01 | 2434632 | 1953-09-11 | -10 | SVO |
-51 | 2434832 | 1954-03-30 | 2434841 | 1954-04-08 | -9 | AAVSO | |
-50 | 9.8 | 2435041 | 1954-10-25 | 2435050 | 1954-11-03 | -9 | SVO |
-49 | 10.2 | 2435252 | 1955-05-24 | 2435259 | 1955-05-31 | -7 | AAVSO |
-48 | 9.8 | 2435462 | 1955-12-20 | 2435467 | 1955-12-25 | -5 | AAVSO |
-47 | 9.7 | 2435670 | 1956-07-15 | 2435676 | 1956-07-21 | -6 | AAVSO |
-46 | 2435878 | 1957-02-08 | 2435885 | 1957-02-15 | -7 | AAVSO | |
-45 | 9.9 | 2436090 | 1957-09-08 | 2436093 | 1957-09-11 | -3 | SVO |
-44 | 2436296 | 1958-04-02 | 2436302 | 1958-04-08 | -6 | AAVSO | |
-43 | 9.4 | 2436495 | 1958-10-18 | 2436511 | 1958-11-03 | -16 | SVO |
-42 | 2436706 | 1959-05-17 | 2436719 | 1959-05-30 | -13 | AAVSO | |
-41 | 10.1 | 2436924 | 1959-12-21 | 2436928 | 1959-12-25 | -4 | SVO |
-40 | 10.2 | 2437130 | 1960-07-14 | 2437137 | 1960-07-21 | -7 | AAVSO |
-39 | 9.4 | 2437332 | 1961-02-01 | 2437345 | 1961-02-14 | -13 | AAVSO |
-38 | 10.2 | 2437545 | 1961-09-02 | 2437554 | 1961-09-11 | -9 | SVO |
-37 | 2437750 | 1962-03-26 | 2437763 | 1962-04-08 | -13 | AAVSO | |
-36 | 9.8 | 2437957 | 1962-10-19 | 2437971 | 1962-11-02 | -14 | SVO |
-35 | 2438161 | 1963-05-11 | 2438180 | 1963-05-30 | -19 | AAVSO | |
-34 | 9.6 | 2438375 | 1963-12-11 | 2438389 | 1963-12-25 | -14 | SVO |
-33 | 9.6 | 2438579 | 1964-07-02 | 2438597 | 1964-07-20 | -18 | AAVSO |
-32 | 9.4 | 2438783 | 1965-01-22 | 2438806 | 1965-02-14 | -23 | AAVSO |
-31 | 9.9 | 2438990 | 1965-08-17 | 2439015 | 1965-09-11 | -25 | SVO |
-30 | 9.5 | 2439197 | 1966-03-12 | 2439223 | 1966-04-07 | -26 | AAVSO |
-29 | 9.7 | 2439408 | 1966-10-09 | 2439432 | 1966-11-02 | -24 | SVO |
-28 | 9.6 | 2439617 | 1967-05-06 | 2439641 | 1967-05-30 | -24 | AAVSO |
-27 | 9.6 | 2439824 | 1967-11-29 | 2439849 | 1967-12-24 | -25 | SVO |
-26 | 10.0 | 2440034 | 1968-06-26 | 2440058 | 1968-07-20 | -24 | AAVSO |
-25 | 9.5 | 2440242 | 1969-01-20 | 2440267 | 1969-02-14 | -25 | AAVSO |
-24 | 10.3 | 2440451 | 1969-08-17 | 2440476 | 1969-09-11 | -25 | AAVSO |
-23 | 2440654 | 1970-03-08 | 2440684 | 1970-04-07 | -30 | AAVSO | |
-22 | 9.5 | 2440860 | 1970-09-30 | 2440893 | 1970-11-02 | -33 | SVO |
-21 | 2441076 | 1971-05-04 | 2441102 | 1971-05-30 | -26 | AAVSO | |
-20 | 9.6 | 2441282 | 1971-11-26 | 2441310 | 1971-12-24 | -28 | SVO |
-19 | 10.2 | 2441493 | 1972-06-24 | 2441519 | 1972-07-20 | -26 | AAVSO |
-18 | 9.7 | 2441700 | 1973-01-17 | 2441728 | 1973-02-14 | -28 | AAVSO |
-17 | 10.4 | 2441909 | 1973-08-14 | 2441936 | 1973-09-10 | -27 | SVO |
-16 | 2442120 | 1974-03-13 | 2442145 | 1974-04-07 | -25 | AAVSO | |
-15 | 10.4 | 2442324 | 1974-10-03 | 2442354 | 1974-11-02 | -30 | SVO |
-14 | 2442536 | 1975-05-03 | 2442562 | 1975-05-29 | -26 | AAVSO | |
-13 | 10.1 | 2442753 | 1975-12-06 | 2442771 | 1975-12-24 | -18 | SVO |
-12 | 9.5 | 2442958 | 1976-06-28 | 2442980 | 1976-07-20 | -22 | AAVSO |
-11 | 9.7 | 2443161 | 1977-01-17 | 2443188 | 1977-02-13 | -27 | AAVSO |
-10 | 9.4 | 2443359 | 1977-08-03 | 2443397 | 1977-09-10 | -38 | SVO |
-9 | 11.3 | 2443576 | 1978-03-08 | 2443606 | 1978-04-07 | -30 | AAVSO |
-8 | 10.0 | 2443790 | 1978-10-08 | 2443814 | 1978-11-01 | -24 | SVO |
-7 | 2443994 | 1979-04-30 | 2444023 | 1979-05-29 | -29 | AAVSO | |
-6 | 10.4 | 2444209 | 1979-12-01 | 2444232 | 1979-12-24 | -23 | SVO |
-5 | 10.0 | 2444414 | 1980-06-23 | 2444440 | 1980-07-19 | -26 | AAVSO |
-4 | 10.0 | 2444626 | 1981-01-21 | 2444649 | 1981-02-13 | -23 | AAVSO |
-3 | 9.7 | 2444843 | 1981-08-26 | 2444858 | 1981-09-10 | -15 | SVO |
-2 | 10.1 | 2445046 | 1982-03-17 | 2445066 | 1982-04-06 | -20 | AAVSO |
-1 | 9.4 | 2445252 | 1982-10-09 | 2445275 | 1982-11-01 | -23 | SVO |
0 | 10.9 | 2445469 | 1983-05-14 | 2445484 | 1983-05-29 | -15 | AAVSO |
1 | 10.0 | 2445686 | 1983-12-17 | 2445693 | 1983-12-24 | -7 | SVO |
2 | 10.1 | 2445892 | 1984-07-10 | 2445901 | 1984-07-19 | -9 | SVO |
3 | 9.0 | 2446095 | 1985-01-29 | 2446110 | 1985-02-13 | -15 | AAVSO |
4 | 9.9 | 2446315 | 1985-09-06 | 2446319 | 1985-09-10 | -4 | SVO |
5 | 2446524 | 1986-04-03 | 2446527 | 1986-04-06 | -3 | AAVSO | |
6 | 10.0 | 2446732 | 1986-10-28 | 2446736 | 1986-11-01 | -4 | SVO |
7 | 10.2 | 2446945 | 1987-05-29 | 2446945 | 1987-05-29 | 0 | AAVSO |
8 | 9.3 | 2447152 | 1987-12-22 | 2447153 | 1987-12-23 | -1 | SVO |
9 | 2447362 | 1988-07-19 | 2447362 | 1988-07-19 | 0 | AAVSO | |
10 | 2447568 | 1989-02-10 | 2447571 | 1989-02-13 | -3 | AAVSO | |
11 | 9.3 | 2447770 | 1989-08-31 | 2447779 | 1989-09-09 | -9 | SVO |
12 | 2447989 | 1990-04-07 | 2447988 | 1990-04-06 | 1 | AAVSO | |
13 | 10.1 | 2448201 | 1990-11-05 | 2448197 | 1990-11-01 | 4 | SVO |
14 | 2448402 | 1991-05-25 | 2448405 | 1991-05-28 | -3 | AAVSO | |
15 | 9.7 | 2448611 | 1991-12-20 | 2448614 | 1991-12-23 | -3 | SVO |
16 | 9.9 | 2448826 | 1992-07-22 | 2448823 | 1992-07-19 | 3 | SVO |
17 | 2449034 | 1993-02-15 | 2449031 | 1993-02-12 | 3 | AAVSO | |
18 | 9.7 | 2449234 | 1993-09-03 | 2449240 | 1993-09-09 | -6 | SVO |
19 | 2449444 | 1994-04-01 | 2449449 | 1994-04-06 | -5 | AAVSO | |
20 | 9.5 | 2449669 | 1994-11-12 | 2449657 | 1994-10-31 | 12 | SVO |
21 | 2449877 | 1995-06-08 | 2449866 | 1995-05-28 | 11 | AAVSO | |
22 | 9.5 | 2450077 | 1995-12-25 | 2450075 | 1995-12-23 | 2 | SVO |
23 | 2450282 | 1996-07-17 | 2450283 | 1996-07-18 | -1 | AAVSO | |
24 | 2450495 | 1997-02-15 | 2450492 | 1997-02-12 | 3 | AAVSO | |
25 | 10.2 | 2450706 | 1997-09-14 | 2450701 | 1997-09-09 | 5 | SVO |
26 | 2450915 | 1998-04-11 | 2450909 | 1998-04-05 | 6 | AAVSO | |
27 | 10.1 | 2451120 | 1998-11-02 | 2451118 | 1998-10-31 | 2 | SVO |
28 | 2451330 | 1999-05-31 | 2451327 | 1999-05-28 | 3 | AAVSO | |
29 | 9.6 | 2451536 | 1999-12-23 | 2451536 | 1999-12-23 | 0 | SVO |
30 | 9.5 | 2451740 | 2000-07-14 | 2451744 | 2000-07-18 | -4 | SVO |
31 | 2451950 | 2001-02-09 | 2451953 | 2001-02-12 | -3 | AAVSO | |
32 | 10.2 | 2452163 | 2001-09-10 | 2452162 | 2001-09-09 | 1 | SVO |
33 | 2452368 | 2002-04-03 | 2452370 | 2002-04-05 | -2 | AAVSO | |
34 | 10.4 | 2452579 | 2002-10-31 | 2452579 | 2002-10-31 | 0 | SVO |
35 | 2452797 | 2003-06-06 | 2452788 | 2003-05-28 | 9 | AAVSO | |
36 | 10.3 | 2453001 | 2003-12-27 | 2452996 | 2003-12-22 | 5 | SVO |
37 | 9.4 | 2453202 | 2004-07-15 | 2453205 | 2004-07-18 | -3 | SVO |
38 | 2453420 | 2005-02-18 | 2453414 | 2005-02-12 | 6 | AAVSO | |
39 | 10.1 | 2453642 | 2005-09-28 | 2453622 | 2005-09-08 | 20 | SVO |
40 | 2453852 | 2006-04-26 | 2453831 | 2006-04-05 | 21 | AAVSO | |
41 | 9.7 | 2454057 | 2006-11-17 | 2454040 | 2006-10-31 | 17 | SVO |
42 | 2454270 | 2007-06-18 | 2454248 | 2007-05-27 | 22 | AAVSO | |
43 | 9.2 | 2454479 | 2008-01-13 | 2454457 | 2007-12-22 | 22 | SVO |
44 | 10.1 | 2454688 | 2008-08-09 | 2454666 | 2008-07-18 | 22 | SVO |
45 | 10.0 | 2454894 | 2009-03-03 | 2454874 | 2009-02-11 | 20 | AAVSO |
46 | 9.3 | 2455103 | 2009-09-28 | 2455083 | 2009-09-08 | 20 | SVO |
47 | 2455308 | 2010-04-21 | 2455292 | 2010-04-05 | 16 | AAVSO | |
48 | 9.6 | 2455521 | 2010-11-20 | 2455500 | 2010-10-30 | 21 | SVO |
49 | 2455725 | 2011-06-12 | 2455709 | 2011-05-27 | 16 | AAVSO | |
50 | 9.5 | 2455936 | 2012-01-09 | 2455918 | 2011-12-22 | 18 | SVO |
51 | 9.7 | 2456150 | 2012-08-10 | 2456126 | 2012-07-17 | 24 | SVO |
52 | 9.9 | 2456337 | 2013-02-13 | 2456335 | 2013-02-11 | 2 | AAVSO |
53 | 9.8 | 2456570 | 2013-10-04 | 2456544 | 2013-09-08 | 26 | SVO |
54 | 2456782 | 2014-05-04 | 2456753 | 2014-04-05 | 29 | AAVSO | |
55 | 9.0 | 2456974 | 2014-11-12 | 2456961 | 2014-10-30 | 13 | SVO |
56 | 9.5 | 2457178 | 2015-06-04 | 2457170 | 2015-05-27 | 8 | SVO |
57 | 9.9 | 2457388 | 2015-12-31 | 2457379 | 2015-12-22 | 9 | AAVSO |
58 | 9.2 | 2457593 | 2016-07-23 | 2457587 | 2016-07-17 | 6 | SVO |
59 | 9.5 | 2457798 | 2017-02-13 | 2457796 | 2017-02-11 | 2 | AAVSO |
60 | 9.8 | 2458021 | 2017-09-24 | 2458005 | 2017-09-08 | 16 | SVO |
61 | 2458230 | 2018-04-21 | 2458213 | 2018-04-04 | 17 | SVO | |
62 | 10.0 | 2458439 | 2018-11-16 | 2458422 | 2018-10-30 | 17 | SVO |
63 | 9.4 | 2458640 | 2019-06-05 | 2458631 | 2019-05-27 | 9 | SVO |
64 | 9.4 | 2458858 | 2020-01-09 | 2458839 | 2019-12-21 | 19 | SVO |
65 | 9.6 | 2459065 | 2020-08-03 | 2459048 | 2020-07-17 | 17 | SVO |
66 | 2459285 | 2021-03-11 | 2459257 | 2021-02-11 | 28 | SVO | |
67 | 9.6 | 2459498 | 2021-10-10 | 2459465 | 2021-09-07 | 33 | SVO |
68 | 2459710 | 2022-05-10 | 2459674 | 2022-04-04 | 36 | SVO | |
69 | 9.5 | 2459918 | 2022-12-04 | 2459883 | 2022-10-30 | 35 | SVO |
E | Cycle number from the GCVS4 epoch. |
Mag | Magnitude at maximum. |
O (JD) | Julian date at observed time for maximum. |
O (Dat) | Same as above, expressed as date. |
C (JD) | Julian date at calculated time for maximum with elements from GCVS4. |
C (Dat) | Same as above, expressed as date. |
O-C | O (JD) minus C (JD). |
Sorce | Datasource for the maxima. |