Free Access
| Satellites | Period of time | Number |
| of data | ||
| M-1 M-2 | 1877-2005 | 3438 |
| J-1 | 1891-2007 | 3307 |
| J-2 | 1891-2007 | 2758 |
| J-3 | 1891-2007 | 3086 |
| J-4 | 1891-2007 | 3104 |
| all J-1-2-3-4 | 1891-2007 | 12 255 |
| J-5 | 1954-2001 | 677 |
| J-14 | 1981-2001 | 521 |
| J-15 | 1988 | 48 |
| J-16 | 1988-2000 | 178 |
| all J-5-14-15-16 | 1954-2001 | 1424 |
| J-6 J-7 J-8 J-9 J-10 J-11 | 1894-2008 | 4598 |
| J-12, J-13 | 1951-2008 | 294 |
| J-17 to J-49 and unnumbered | 1975-2006 | 975 |
| all J-6-7-8-9-10-11-12-13-17 | 1894-2008 | 3020 |
| S-1 | 1874-2003 | 1820 |
| S-2 | 1874-2007 | 5786 |
| S-3 | 1874-2007 | 9671 |
| S-4 | 1874-2007 | 9017 |
| S-5 | 1874-2007 | 8072 |
| S-6 | 1874-2007 | 7994 |
| S-7 | 1874-2007 | 4321 |
| S-8 | 1874-2007 | 6833 |
| all S-1-2-3-4-5-6-7-8 | 1891-2007 | 57 355 |
| S-10, S-11 | 1966-2000 | 188 |
| S-12 | 1980-1996 | 286 |
| S-13, S-14 | 1981-1996 | 90 |
| S-16, S-17 | 1994-2002 | 410 |
| all S-12-13-14-16-17 | 1966-2002 | 974 |
| S-9 | 1904-2008 | 1520 |
| from S-18 to S-52 and unnumbered | 2000-2008 | 939 |
| all S-9-18-... | 1904-2006 | 2459 |
| U-1 | 1983-2006 | 1495 |
| U-2 | 1983-2006 | 1529 |
| U-3 | 1983-2006 | 1385 |
| U-4 | 1983-2006 | 1605 |
| U-5 | 1983-2006 | 1430 |
| all U-1-2-3-4-5 | 1983-2006 | 7441 |
| U-6 to U-15 | 1994-2004 | 65 |
| U-16 to U-20 | 1984-2006 | 479 |
| N-1 | 1877-2006 | 3095 |
| N-2 | 1949-2008 | 667 |
| N-1 N-2 | 1877-2008 | 3762 |
| N-3 to N-8 | 1991-2002 | 149 |
| N-9 to N-13 | 1999-2004 | 170 |
| P-1 | 1992-2006 | 78 |
| P-2, P-3 | 2002-2006 | 35 |
| all P-1-2-3 | 1992-2006 | 113 |
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