| 1998-012B | T-1 |
| 1969-013A | Tacomsat 1 |
| 1969-013A | Tacsat |
| 2009-028A | TacSat-3 |
| 2011-052A | TacSat-4 |
| 1975-014A | Taiyo |
| 2003-061A | Tance 1 |
| 2004-029A | Tance 2 |
| 2010-030A | TanDEM-X |
| 2000-045B | Tango |
| 2010-028F | Tango (Prisma) |
| viz | Tansei |
| 1994-017A | TAOS |
| 2005-002C | Tat'jana |
| 2009-049E | Tat'jana 2 |
| 1967-123B | TATS-1 |
| 1968-100B | TATS-2 |
| 1971-083B | TATS-3 |
| 1962-049B | TAVE |
| 2003-061A | TC-1 |
| 2004-029A | TC-2 |
| 1972-014A | TD-1A |
| 2008-019A | Tchien-lien-1 01 |
| viz | TDA |
| 1988-098A | TDF-1 |
| 1990-063A | TDF-2 |
| viz | TDRS |
| 1997-066A | Teamsat |
| 2008-002A | TecSAR |
| 2005-007C | TECh-42 |
| 1998-043D | Techsat 1B |
| 1989-027A | Tele-X |
| viz | Telecom |
| 1998-012B | Teledesic 1 |
| 1999-027A | Telesat DBS-32 |
| viz | Telesat |
| 1999-042A | Telkom 1 |
| 2005-046A | Telkom 2 |
| 1962-029A | Telstar 1 (NASA) |
| 1963-013A | Telstar 2 (NASA) |
| viz | Telstar (komerční družice) |
| 1993-055B | Temisat |
| 1983-011A | Temma |
| 2002-023A | Tempo 1 |
| 1997-011A | Tempo 2 |
| 1965-065E | Tempsat 1 |
| 1969-082H | Tempsat 2 |
| 1983-011A | Tenma |
| 1999-068A | Terra |
| 2007-026A | TerraSAR-X 1 |
| 2009-035A | TerreStar-1 |
| 1999-026A | TERRIERS |
| 2001-049A | TES |
| viz | TETR |
| 1990-031B | TEX |
| 2011-053A | TG-1 |
| 2010-040A | TH-1 |
| viz | Thaicom |
| 2000-004L | Thelma |
| viz | THEMIS |
| 2008-049A | THEOS |
| 2011-060A | Thijs |
| viz | Thor |
| 2000-066A | Thuraya 1A |
| 2003-026A | Thuraya 2 |
| 2008-001A | Thuraya 3 |
| 2011-053A | Tiangong-1 |
| 2008-019A | Tianlian-1 01 |
| 2011-066A | Tian xun-1 |
| 1967-053E | Timation 1 |
| 1969-082C | Timation 2 |
| 1974-054A | Timation 3 |
| 2001-055B | TIMED |
| 1975-099A | TIP-2 |
| 1976-089A | TIP-3 |
| 1996-029E | TiPS |
| viz | Tiros |
| 2010-035E | TiSat-1 |
| 1964-081A | Titan 3A-2 |
| 1965-008A | Titan 3A-3 |
| 2000-057D | Tiungsat 1 |
| 1961-002A | Tjaželyj sputnik (1) |
| 2008-019A | TL-1 01 |
| 2011-032A | TL-1 02 |
| 1998-043C | TMSat-1 |
| 2002-012A | Tom |
| 1996-037A | TOMS-1 |
| 1996-037A | TOMS-EP |
| 2005-007C | TNS-0 |
| 1992-052A | Topex-Poseidon |
| 1970-025B | Topo 1 |
| 2005-043B | TopSat |
| 1964-051A | TOPSI |
| viz | TOS |
| 1971-030A | Tournesol 1 |
| 1961-031B | TRAAC |
| 1998-020A | TRACE |
| 2002-058E | Trailblazer GVM |
| 1977-106A | Transat |
| viz | Transit |
| viz | Transtage |
| 1975-099A | Triad 2 |
| 1972-069A | Triad OI-1X |
| 1997-074A | TRMM |
| viz | TRS |
| 1997-068A | Trumpet 3 |
| 2000-033B | Tsinhua 1 |
| 2009-002D | TSP-1 |
| 1992-049A | TSS-1 |
| 1996-012B | TSS-1R |
| 2002-003A | Tsubasa |
| 2007-026A | TSX-1 [=TerraSAR-X] |
| 2000-030A | TSX-5 [=Tri-Service Experiments Mission] |
| viz | TTS |
| 2003-042G | Tubitak 1 |
| viz | Tubsat |
| viz | Turksat (Türksat) |
| 1987-095A | TVSat-1 |
| 1989-062A | TVSat-2 |
| 2011-066A | TX-1 |