List of USA satellites

This is a list of satellites and spacecraft which have been given USA designations by the United States Air Force. These designations have been applied to most US military satellites since 1984, and replaced the earlier OPS designation. It is comparable to the Soviet/Russian Kosmos designation.

As of December 2020, USA designations have been assigned to 313 space missions. There is not always a one-to-one mapping between launch vehicles and mission spacecraft. This can occasionally result in gaps when maintaining records that incorrectly make that assumption, such as the "missing" entries for USA-163 (which are, symmetrically, contemporary with confusion over "splitting" spacecraft tracks).[1]

List
Number Launch date Launch vehicle Other designations Function Status Remarks
USA-1 1984-06-13 Atlas E/F Navstar-9 Navigation Out of service
USA-2 1984-06-25 Titan 34D KH-9 Reconnaissance Deorbited: 1984-10-18 Launched with USA-3
USA-3 1984-06-25 Titan 34D SSF-D ELINT Out of service Launched with USA-2
USA-4 1984-08-28 Titan 34B SDS Communications Out of service
USA-5 1984-09-08 Atlas E/F Navstar-10 Navigation Out of service
USA-6 1984-12-04 Titan 34D KH-11 Reconnaissance Decayed: 1990-12-31
USA-7 1984-12-22 Titan 34D / Transtage DSP-2-6R Missile detection Retired: 1994-12-31
USA-8 1985-01-24 Space Shuttle Discovery Magnum ELINT Out of service
USA-9 1985-02-08 Titan 34B SDS Communications Out of service
USA-10 1985-10-09 Atlas E/F Navstar-11 Navigation Out of service
USA-11 1985-10-03 Space Shuttle Atlantis DSCS-III-B4 Communications Out of service Launched with USA-12
USA-12 1985-10-03 Space Shuttle Atlantis DSCS-III-B5 Communications Out of service Launched with USA-11
USA-13 1985-12-13 Scout-G ITV-1 Inflatable ASAT target Failed. Decayed: 1989-05-11 Launched with USA-14. Failed to inflate.
USA-14 1985-12-13 Scout-G ITV-2 Inflatable ASAT target Decayed: 1987-08-09 Launched with USA-13. Unused
USA-15 1986-02-09 Atlas H NOSS (PARCAE/White Cloud) ELINT / Ocean surveillance Out of service Deployed subsatellites, USA-16, 17 and 18
USA-16 1986-02-09 Atlas H NOSS (PARCAE/White Cloud) ELINT / Ocean surveillance Out of service Subsatellite of USA-15
USA-17 1986-02-09 Atlas H NOSS (PARCAE/White Cloud) ELINT / Ocean surveillance Out of service Subsatellite of USA-15
USA-18 1986-02-09 Atlas H NOSS (PARCAE/White Cloud) ELINT / Ocean surveillance Out of service Subsatellite of USA-15
USA-19 1986-09-05 Delta 3920 SDI Sensor development Deorbited: 1986-09-28
USA-20 1986-12-05 Atlas G Fltsatcom-7 Communications
USA-21 1987-02-12 Titan 34B SDS Communications Out of service
USA-22 1987-05-15 Atlas H NOSS (PARCAE/White Cloud) ELINT / Ocean surveillance Out of service Deployed subsatellites, USA-23, 24 and 25
USA-23 1987-05-15 Atlas H NOSS (PARCAE/White Cloud) ELINT / Ocean surveillance Out of service Subsatellite of USA-22
USA-24 1987-05-15 Atlas H NOSS (PARCAE/White Cloud) ELINT / Ocean surveillance Out of service Subsatellite of USA-22
USA-25 1987-05-15 Atlas H NOSS (PARCAE/White Cloud) ELINT / Ocean surveillance Out of service Subsatellite of USA-22
USA-26 1987-06-20 Atlas E/F DMSP-5D2 F3 (S8) Weather
USA-27 1987-10-26 Titan 34D KH-11 Reconnaissance Decayed: 1992-05-31
USA-28 1987-11-29 Titan 34D / Transtage DSP-2-5R Missile detection Retired: 1987-12-31
USA-29 1988-02-03 Atlas E/F DMSP-5D2 F4 (S-9) Weather
USA-30 1988-02-08 Delta 3910 SDI Training satellite Deorbited: 1988-03-01
USA-31 1988-09-02 Titan 34D / Transtage Chalet ELINT Failed Placed in useless orbit due to Transtage malfunction
USA-32 1988-09-05 Titan 23G Singleton/SBWASS-R ELINT
USA-33 1988-11-06 Titan 34D KH-11 Reconnaissance Out of service
USA-34 1988-12-02 Space Shuttle Atlantis Lacrosse Radar reconnaissance Deorbited: 1997-03-25
USA-35 1989-02-14 Delta II 6925-9.5 GPS-II-1 Navigation Retired: 2000-04-14
USA-36 1989-03-24 Delta 3920-8 Delta Star Decayed: 1992-06-23
USA-37 1989-05-10 Titan 34D / Transtage Chalet ELINT Out of service
USA-38 1989-06-10 Delta II 6925-9.5 GPS-II-2 Navigation Out of service
USA-39 1989-06-14 Titan IV / IUS DSP-1-14 F14 Missile detection Decommissioned
USA-40 1989-08-08 Space Shuttle Columbia SDS-2 Communications Launched with USA-41
USA-41 1989-08-08 Space Shuttle Columbia SSF/COBRA BRASS ELINT Decayed: 1989-12-31 Launched with USA-40
USA-42 1989-08-18 Delta II 6925-9.5 GPS-II-3 Navigation Out of service
USA-43 1989-09-04 Titan 34D / Transtage DSCS-III-06 Communications Launched with USA-44
USA-44 1989-09-04 Titan 34D / Transtage DSCS-III-07 Communications Launched with USA-43
USA-45 1989-09-06 Titan 23G Singleton/SBWASS-R ELINT Failed Failed to leave parking orbit due to on-board propulsion malfunction
USA-46 1989-09-25 Atlas G Fltsatcom-8 Communications
USA-47 1989-10-21 Delta II 6925-9.5 GPS-II-4 Navigation Out of service
USA-48 1989-11-23 Space Shuttle Discovery Magnum ELINT
USA-49 1989-12-11 Delta II 6925-9.5 GPS-II-5 Navigation Out of service
USA-50 1990-01-24 Delta II 6925-9.5 GPS-II-6 Navigation Out of service
USA-51 1990-02-14 Delta II 6920-8 LACE/Losat-L Technology Decayed: 2000-05-24 Launched with USA-52
USA-52 1990-02-14 Delta II 6920-8 RME/Losat-R Technology Decayed: 1992-05-24 Launched with USA-51
USA-53 1990-02-28 Space Shuttle Atlantis Misty Reconnaissance Presumed deorbited Stealth satellite. Last sighting in 1997.
USA-54 1990-03-26 Delta II 6925-9.5 GPS-II-7 Navigation Failed: 1996-05-21 Signal anomaly made satellite unusable
USA-55 1990-04-05 Pegasus GLOMR-2/SECS/TERCEL Communications
USA-56 1990-04-11 Atlas E/F P87-2/Stacksat/POGS/SSR[2] Technology Out of service Launched with USA-57 and 58
USA-57 1990-04-11 Atlas E/F P87-2/Stacksat/TEX[3] Technology Out of service Launched with USA-56 and 58
USA-58 1990-04-11 Atlas E/F P87-2/Stacksat/SCE[3] Technology Out of service Launched with USA-56 and 57
USA-59 1990-06-08 Titan IV NOSS-2 ELINT / Ocean surveillance Deployed subsatellites, USA-60, 61 and 62
USA-60 1990-06-08 Titan IV NOSS-2 ELINT / Ocean surveillance Subsatellite of USA-59
USA-61 1990-06-08 Titan IV NOSS-2 ELINT / Ocean surveillance Subsatellite of USA-59
USA-62 1990-06-08 Titan IV NOSS-2 ELINT / Ocean surveillance Subsatellite of USA-59
USA-63 1990-08-02 Delta II 6925-9.5 GPS-II-8 Navigation Out of service
USA-64 1990-10-01 Delta II 6925-9.5 GPS-II-9 Navigation Out of service
USA-65 1990-11-13 Titan IV / IUS DSP-1-14 F15 Missile detection Decommissioned
USA-66 1990-11-26 Delta II 7925-9.5 GPS-IIA-1 Navigation Out of service
USA-67 1990-11-15 Space Shuttle Atlantis SDS-2 Communications Launched with Prowler; disguised as Magnum to hide Prowler's existence
USA-68 1990-12-01 Atlas E/F DMSP-5D2 F5 (S-10) Weather Failed Placed in useless orbit due to upper stage malfunction
USA-69 1991-03-08 Titan IV Lacrosse Radar reconnaissance Out of service
USA-70 1991-04-28 Space Shuttle Discovery MPEC Technology development
USA-71 1991-07-04 Delta II 7925-9.5 GPS-IIA-2 Navigation Out of service
USA-72 1991-11-08 Titan IV NOSS-2 ELINT / Ocean surveillance Deployed subsatellites, USA-74, 76 and 77
USA-73 1991-11-28 Atlas E/F DMSP-5D2 F6 (S-12) Weather
USA-74 1991-11-08 Titan IV NOSS-2 ELINT / Ocean surveillance Subsatellite of USA-72
USA-75 1991-11-24 Space Shuttle Atlantis DSP-1-14-F16 Missile detection
USA-76 1991-11-08 Titan IV NOSS-2 ELINT / Ocean surveillance Subsatellite of USA-72
USA-77 1991-11-08 Titan IV NOSS-2 ELINT / Ocean surveillance Subsatellite of USA-72
USA-78 1992-02-11 Atlas II DSCS-III-08 Communications
USA-79 1992-02-23 Delta II 7925-9.5 GPS-IIA-3 Navigation Decommissioned
USA-80 1992-04-10 Delta II 7925-9.5 GPS-IIA-4 Navigation Out of service
USA-81 1992-04-25 Titan 23G Singleton/SBWASS-R ELINT
USA-82 1992-07-02 Atlas II DSCS-III-09 Communications
USA-83 1992-07-07 Delta II 7925-9.5 GPS-IIA-5 Navigation Out of service
USA-84 1992-09-09 Delta II 7925-9.5 GPS-IIA-6 Navigation Out of service
USA-85 1992-11-22 Delta II 7925-9.5 GPS-IIA-7 Navigation Out of service
USA-86 1992-11-28 Titan IV KH-11 Optical reconnaissance
USA-87 1992-12-18 Delta II 7925-9.5 GPS-IIA-8 Navigation Out of service
USA-88 1993-02-03 Delta II 7925-9.5 GPS-IIA-9 Navigation Out of service
USA-89 1992-12-02 Space Shuttle Discovery SDS-2 Communications
USA-90 1993-03-30 Delta II 7925-9.5 GPS-IIA-10 Navigation Out of service
USA-91 1993-05-13 Delta II 7925-9.5 GPS-IIA-11 Navigation Out of service
USA-92 1993-06-26 Delta II 7925-9.5 GPS-IIA-12 Navigation Out of service
USA-93 1993-07-19 Atlas II DSCS-III-10 Communications
USA-94 1993-08-30 Delta II 7925-9.5 GPS-IIA-13 Navigation Out of service
USA-95 1993-09-03 Atlas I UHF F/O-2 Communications
USA-96 1993-10-26 Delta II 7925-9.5 GPS-IIA-14 Navigation Out of service
USA-97 1993-11-28 Atlas II DSCS-III-11 Communications
USA-98 1993-12-08 Delta II 7925 NATO-4B Communications
USA-99 1994-02-07 Titan IV / Centaur Milstar-DFS-1 Communications
USA-100 1994-03-10 Delta II 7925-9.5 GPS-IIA-15 Navigation Out of service
USA-101 1994-03-13 Taurus STEP-0 Technology development Launched with USA-102
USA-102 1994-03-13 Taurus DarpaSat Technology development Launched with USA-101
USA-103 1994-05-03 Titan IV / Centaur Trumpet ELINT
USA-104 1994-06-24 Atlas I UHF F/O-3 Communications
USA-105 1994-08-27 Titan IV / Centaur Mercury ELINT
USA-106 1994-08-29 Atlas E/F DMSP 5D-1 F12 Weather
USA-107 1994-12-22 Titan IV / IUS DSP-1 F17 Missile detection Active
USA-108 1995-01-29 Atlas II UHF F/O-4 Communications
USA-109 1995-03-24 Atlas E/F DMSP 5D-1 F13 Weather Destroyed: 2015-02-03 Exploded after unknown malfunction, characterized as "sudden temperature spike". 47 tracked pieces of debris were produced.[4]
USA-110 1995-05-14 Titan IV / Centaur Mentor SIGINT
USA-111 1995-05-31 Atlas II UHF F/O-5 Communications Decommissioned
USA-112 1995-07-10 Titan IV / Centaur Trumpet ELINT
USA-113 1995-07-31 Atlas IIA DSCS-III-B7 Communications
USA-114 1995-10-22 Atlas II UHF F/O-6 Communications
USA-115 1995-11-06 Titan IV / Centaur Milstar DFS-2 Communications
USA-116 1995-12-05 Titan IV KH-11 Optical reconnaissance Presumed deorbited not seen since late 2008
USA-117 1996-03-28 Delta II 7925-9.5 GPS-IIA-16 Navigation Out of service
USA-118 1996-04-24 Titan IV / Centaur Mercury ELINT
USA-119 1996-05-12 Titan IV NOSS-2 ELINT / Ocean surveillance Deployed subsatellites, USA-120, 121 and 122, Launched with USA-123 and 124
USA-120 1996-05-12 Titan IV NOSS-2 ELINT / Ocean surveillance Subsatellite of USA-119
USA-121 1996-05-12 Titan IV NOSS-2 ELINT / Ocean surveillance Subsatellite of USA-119
USA-122 1996-05-12 Titan IV NOSS-2 ELINT / Ocean surveillance Subsatellite of USA-119
USA-123 1996-05-12 Titan IV TIPS-Ralph Technology Launched with USA-119 and subsatellites, and USA-124
USA-124 1996-05-12 Titan IV TIPS-Norton Technology Launched with USA-119 and subsatellites, and USA-123
USA-125 1996-07-03 Titan IV SDS-2 Communications
USA-126 1996-07-16 Delta II 7925-9.5 GPS-IIA-17 Navigation Decommissioned
USA-127 1996-07-25 Atlas II UHF F/O-7 Communications
USA-128 1996-09-12 Delta II 7925-9.5 GPS-IIA-18 Navigation Out of service
USA-129 1996-12-20 Titan IV 412 (KH-11) Optical reconnaissance Out of service
USA-130 1997-02-23 Titan IVB/IUS DSP-1-18 F18 Missile detection Out of service
USA-131 1997-04-04 Titan 23G DMSP 5D-2 F14 Weather
USA-132 1997-07-23 Delta II 7925-9.5 GPS-IIR-2 Navigation Active
USA-133 1997-10-24 Titan IV NROL-3 (Lacrosse) Radar reconnaissance Active
USA-134 1997-10-25 Atlas IIA DSCS-III-B13 Communications Launched with FalconSat-Gold
USA-135 1997-11-06 Delta II 7925-9.5 GPS-IIA-19 Navigation Out of service
USA-136 1997-11-06 Titan IV / Centaur NROL-4 (Trumpet) ELINT
USA-137 1998-01-29 Atlas IIA NROL-5 (SDS-3) Communications Capricorn
USA-138 1998-03-15 Atlas II UHF F/O-8 Communications
USA-139 1998-05-09 Titan IV / Centaur NROL-6 (Mentor) SIGINT
USA-140 1998-10-20 Atlas IIA UHF F/O-9 Communications
USA-141 1998-10-03 Taurus ATEX Debris Failed: 1999-01-16 Debris from STEX (NROL-8) satellite tether experiment
USA-142 1999-04-09 Titan IVB/IUS DSP-1-18 F19 Missile detection Failed: 1999-04-09 IUS failed to separate
Left in useless orbit
USA-143 1999-04-30 Titan IV / Centaur Milstar DFS-3m Communications Failed: 1999-04-30 Centaur programming error resulted in incorrect burn times, placed in useless orbit
USA-144 1999-05-22 Titan IV NROL-9 (Misty) Reconnaissance Unknown Stealth satellite, only object ever placed in orbit which amateurs are unable to track
USA-145 1999-10-07 Delta II 7925-9.5 GPS-IIR-3 Navigation
USA-146 1999-11-23 Atlas IIA UHF F/O-10 Communications
USA-147 1999-12-12 Titan 23G DMSP 5D-3 F15 Weather
USA-148 2000-01-21 Atlas IIA DSCS-III-B8 Communications
USA-149 2000-05-08 Titan IVB/IUS DSP-1-18 F20 Missile detection Active
USA-150 2000-05-11 Delta II 7925-9.5 GPS-IIR-4 Navigation
USA-151 2000-07-16 Delta II 7925-9.5 GPS-IIR-5 Navigation
USA-152 2000-08-17 Titan IVB NROL-11 (Lacrosse/Onyx) Radar reconnaissance Active
USA-153 2000-10-20 Atlas IIA DSCS-III-B11 Communications
USA-154 2000-11-10 Delta II 7925-9.5 GPS-IIR-6 Navigation Decommissioned
USA-155 2000-12-06 Atlas IIAS NROL-10 (SDS-3) Communications Ursa Major/Great Bear
USA-156 2001-01-30 Delta II 7925-9.5 GPS-IIR-7 Navigation
USA-157 2001-02-27 Titan IV / Centaur Milstar DFS-4 Communications
USA-158 2001-05-18 Delta II 7925-9.5 NROL-17 (GeoLITE) Technology / Communications
USA-159 2001-08-06 Titan IVB/IUS DSP-1-18 F21 Missile detection Active
USA-160 2001-09-08 Atlas IIAS NROL-13 (NOSS-3 "Intruder") ELINT / Ocean surveillance Gemini; two satellites sharing one designation
USA-161 2001-10-05 Titan IVB NROL-14 (KH-11) Optical reconnaissance Active
USA-162 2001-10-11 Atlas IIAS NROL-2 (SDS-3) Communications Aquilla
USA-163 N/A N/A N/A N/A Number not assigned.[5] Some designation confusion due to contemporary flights with multiple payloads.[1][6]
USA-164 2002-01-16 Titan IV / Centaur Milstar DFS-5 Communications
USA-165 2005-04-11 Minotaur XSS-11 Technology development
USA-166 2003-01-29 Delta II 7925-9.5 GPS-IIR-8 Navigation
USA-167 2003-03-11 Delta IV M DSCS-III-A3 Communications
USA-168 2003-03-31 Delta II 7925-9.5 GPS-IIR-9 Navigation
USA-169 2003-04-08 Titan IV / Centaur Milstar DFS-6 Communications
USA-170 2003-08-29 Delta IV M DSCS-III-B6 Communications
USA-171 2003-09-09 Titan IV / Centaur NROL-19 (Mentor) SIGINT
USA-172 2003-10-18 Titan 23G DMSP 5D-3 F16 Weather
USA-173 2003-12-02 Atlas IIAS NROL-18 (NOSS-3 "Intruder") ELINT / Ocean surveillance Libra; two satellites sharing one designation
USA-174 2003-12-18 Atlas IIIB UHF F/O-11 Communications
USA-175 2003-12-21 Delta II 7925-9.5 GPS-IIR-10 Navigation
USA-176 2004-02-14 Titan IVB/IUS DSP-1-18 F22 Missile detection Active
USA-177 2004-03-20 Delta II 7925-9.5 GPS-IIR-11 Navigation
USA-178 2004-06-23 Delta II 7925-9.5 GPS-IIR-12 Navigation
USA-179 2004-08-31 Atlas IIAS NROL-1 (SDS-3) Communications Nemesis
USA-180 2004-11-06 Delta II 7925-9.5 GPS-IIR-13 Navigation
USA-181 2005-02-03 Atlas IIIB NROL-23 (NOSS-3 "Intruder") ELINT / Ocean surveillance Canis Minor; two satellites sharing one designation
USA-182 2005-04-30 Titan IVB NROL-16 (Lacrosse/Onyx) Radar reconnaissance Active
USA-183 2005-09-26 Delta II 7925-9.5 GPS-IIR-14 (IIRM-1) Navigation
USA-184 2006-06-25 Delta IV M+(4,2) NROL-22 (Imp. Trumpet) ELINT
USA-185 2005-09-23 Minotaur STP-R1 Technology development
USA-186 2005-10-19 Titan IVB NROL-20 (KH-11) Optical reconnaissance Active
USA-187 2006-06-21 Delta II 7925 MiTEx-A Technology Launched with USA-188 and 189
USA-188 2006-06-21 Delta II 7925 MiTEx-B Technology Launched with USA-187 and 189
USA-189 2006-06-21 Delta II 7925 MiTEx Carrier Technology Launched with USA-187 and 188
USA-190 2006-09-25 Delta II 7925-9.5 GPS-IIR-15 (IIRM-2) Navigation Active
USA-191 2006-11-04 Delta IV M DMSP 5D-3 F17 Weather
USA-192 2006-11-17 Delta II 7925-9.5 GPS-IIR-16 (IIRM-3) Navigation Active
USA-193 2006-12-14 Delta II 7920-10 NROL-21 Radar Imaging Failed: 2006-12-14
Destroyed: 2008-02-21		 Failed immediately after separation from rocket. Destroyed by ASAT.
USA-194 2007-06-15 Atlas V 401 NROL-30 (NOSS-3 "Intruder") ELINT / Ocean surveillance Pyxis; two satellites under one designation
USA-195 2007-10-11 Atlas V 421 WGS-1 Communications
USA-196 2007-10-17 Delta II 7925-9.5 GPS-IIR-17 (IIRM-4) Navigation Active
USA-197 2007-11-11 Delta IV Heavy DSP-1-18 F23 Missile detection Failed
USA-198 2007-12-10 Atlas V 401 NROL-24 (SDS-3) Communications Scorpius
USA-199 2007-12-20 Delta II 7925-9.5 GPS-IIR-18 (IIRM-5) Navigation Active
USA-200 2008-03-13 Atlas V 411 NROL-28 (Imp. Trumpet) ELINT [7]
USA-201 2008-03-15 Delta II 7925-9.5 GPS-IIR-19 (IIRM-6) Navigation Active
USA-202 2009-01-18 Delta IV Heavy NROL-26 (Mentor) SIGINT Active
USA-203 2009-03-24 Delta II 7925-9.5 GPS-IIR-20 (IIRM-7) Navigation Active
USA-204 2009-04-04 Atlas V 421 WGS-2 Communications Active
USA-205 2009-05-05 Delta II 7920-10C STSS-ATRR Technology Active
USA-206 2009-08-17 Delta II 7925-9.5 GPS IIR-21 (IIRM-8) Navigation Active Final GPS IIR satellite
USA-207 2009-09-08 Atlas V 401 Palladium At Night (PAN) Communications Active
USA-208 2009-09-25 Delta II 7920-10C STSS-Demo Technology Active Launched with USA-209
USA-209 2009-09-25 Delta II 7920-10C STSS-Demo Technology Active Launched with USA-208
USA-210 2009-10-18 Atlas V 401 DMSP-5D-3 F18 Weather Active
USA-211 2009-12-06 Delta IV M+(5,4) WGS-3 Communications Active Last Block I WGS satellite
USA-212 2010-04-22 Atlas V 501 Boeing X-37B OTV-1 Technology Landed: 2010-12-03 Experimental spaceplane, maiden flight of first X-37B
USA-213 2010-05-28 Delta IV M+(4,2) GPS IIF-1 Navigation Active
USA-214 2010-08-14 Atlas V 531 AEHF-1 Communications Active
USA-215 2010-09-21 Atlas V 501 NROL-41 (FIA-R) Radar reconnaissance Active
USA-216 2010-09-26 Minotaur IV SBSS-1 Satellite tracking Active
USA-217 2010-11-20 Minotaur IV / HAPS STPSat-1 Technology Active Launched with USA-218, 219, 220, 221, 222 and NanoSail-D2
USA-218 2010-11-20 Minotaur IV / HAPS RAX Science Active Launched with USA-217, 219, 220, 221, 222 and NanoSail-D2. Civilian satellite, unclear why USA designation was assigned
USA-219 2010-11-20 Minotaur IV / HAPS O/OREOS Technology Active Launched with USA-217, 218, 220, 221, 222 and NanoSail-D2. Civilian satellite, unclear why USA designation was assigned
USA-220 2010-11-20 Minotaur IV / HAPS FASTSAT Technology Active Launched with USA-217, 218, 219, 221, 222 and NanoSail-D2. Civilian satellite, unclear why USA designation was assigned
USA-221 2010-11-20 Minotaur IV / HAPS FalconSAT-5 Technology Active Launched with USA-217, 218, 219, 220, 222 and NanoSail-D2
USA-222 2010-11-20 Minotaur IV / HAPS FASTRAC Technology Active Launched with USA-217, 218, 219, 220, 221 and NanoSail-D2. Two civilian satellites, unclear why USA designation was assigned
USA-223 2010-11-21 Delta IV Heavy NROL-32 (Mentor) SIGINT Active
USA-224 2011-01-20 Delta IV Heavy NROL-49 (KH-11 Kennen) Optical reconnaissance Active
USA-225 2011-02-06 Minotaur I NROL-66 (Rapid Pathfinder Prototype) Technology Active
USA-226 2011-03-05 Atlas V 501 Boeing X-37B OTV-2 Technology Landed: 2012-06-16 Spaceplane, maiden flight of second X-37B
USA-227 2011-03-11 Delta IV M+(4,2) NROL-27 (SDS-3) Communications Active
USA-228 2010-11-20 Minotaur IV/HAPS FASTRAC Technology Active This is the second of the pair of FASTRAC satellites, the first one being USA-222[8]
USA-229 2011-04-15 Atlas V 411 NROL-34 (NOSS-3 "Intruder") ELINT / Ocean surveillance Active Odin; two satellites sharing one designation
USA-230 2011-05-07 Atlas V 401 SBIRS GEO-1 Missile detection Active
USA-231 2011-06-30 Minotaur I ORS-1 Optical reconnaissance Active
USA-232 2011-07-16 Delta IV M+(4,2) GPS IIF-2 Navigation Active
USA-233 2012-01-20 Delta IV M+(5,4) WGS-4 Communications Active
USA-234 2012-04-03 Delta IV M+(5,2) NROL-25 (FIA-R) Radar reconnaissance Active
USA-235 2012-05-04 Atlas V 531 AEHF-2 Communications Active
USA-236 2012-06-20 Atlas V 401 NROL-38 (SDS-3) Communications Active
USA-237 2012-06-29 Delta IV Heavy NROL-15 (Imp. Mentor) SIGINT Active
USA-238 2012-09-13 Atlas V 401 NROL-36 (NOSS-3 "Intruder") ELINT / Ocean surveillance Active [9] Rosie; two satellites sharing one designation
USA-239 2012-10-04 Delta IV M+(4,2) GPS IIF-3 Navigation Active [10]
USA-240 2012-12-11 Atlas V 501 Boeing X-37B OTV-3 Technology Landed: 2014-10-17 [11]
USA-241 2013-03-19 Atlas V 401 SBIRS GEO-2 Missile detection Active
USA-242 2013-05-15 Atlas V 401 GPS IIF-4 Navigation Active
USA-243 2013-05-25 Delta IV M+(5,4) WGS-5 Communications Active
USA-244 2013-08-08 Delta IV M+(5,4) WGS-6 Communications Active
USA-245 2013-08-28 Delta IV Heavy NROL-65 (KH-11 Kennen) Optical reconnaissance Active
USA-246 2013-09-18 Atlas V 531 AEHF-3 Communications Active
USA-247 2013-12-06 Atlas V 501 NROL-39 (FIA-R) Radar reconnaissance Active
USA-248 2014-02-21 Delta IV M+(4,2) GPS IIF-5 Navigation Active
USA-249 2014-04-03 Atlas V 401 DMSP-5D-3 F19 Weather Inactive[12]
USA-250 2014-04-10 Atlas V 541 NROL-67 ELINT Active
USA-251 2014-05-17 Delta IV M+(4,2) GPS IIF-6 Navigation Active
USA-252 2014-05-22 Atlas V 401 NROL-33 (SDS-3) Communications Active
USA-253 2014-07-28 Delta IV M+(4,2) GSSAP 1 Surveillance Active
USA-254 2014-07-28 Delta IV M+(4,2) GSSAP 2 Surveillance Active
USA-255 2014-07-28 Delta IV M+(4,2) ANGELS Technology Active
USA-256 2014-08-02 Atlas V 401 GPS IIF-7 Navigation Active
USA-257 2014-09-17 Atlas V 401 CLIO[13] ELINT Active
USA-258 2014-10-29 Atlas V 401 GPS IIF-8 Navigation Active
USA-259 2014-12-13 Atlas V 401 NROL-35 ELINT Active
USA-260 2015-03-25 Delta IV M+(4,2) GPS IIF-9 Navigation Active
USA-261 2015-05-20 Atlas V 501 Boeing X-37B OTV-4 Technology Landed: 2017-05-07
USA-262 2015-07-15 Atlas V 401 GPS IIF-10 Navigation Active
USA-263 2015-07-24 Delta IV M+(5,4) WGS-7 Communications Active
USA-264 2015-10-08 Atlas V 401 NROL-55 (NOSS-3 "Intruder") ELINT / Ocean surveillance Active Two satellites sharing one designation. Also contained 13 CubeSats as part of the Government Rideshare Advanced Concepts Experiment (GRACE) Program.
USA-265 2015-10-31 Atlas V 401 GPS IIF-11 Navigation Active
USA-266 2016-02-05 Atlas V 401 GPS IIF-12 Navigation Active
USA-267 2016-02-10 Delta IV M+(5,2) NROL-45 (FIA-R) Radar reconnaissance Active
USA-268 2016-06-11 Delta IV Heavy NROL-37 (Orion / Mentor) SIGINT Active
USA-269 2016-07-28 Atlas V 421 NROL-61 (Quasar, Spike) Communications Active
USA-270 2016-08-19 Delta IV M+(4,2) GSSAP 3 Surveillance Active
USA-271 2016-08-19 Delta IV M+(4,2) GSSAP 4 Surveillance Active
USA-272 2016-12-07 Delta IV M+(5,4) WGS-8 Communications Active
USA-273 2017-01-21 Atlas V 401 SBIRS GEO-3 Missile detection Commissioning
USA-274 2017-03-01 Atlas V 401 NROL-79 (NOSS-3 "Intruder") ELINT / Ocean surveillance Active Two satellites sharing one designation.
USA-275 2017-03-19 Delta IV M+(5,4) WGS-9 Communications Active
USA-276 2017-05-01 Falcon 9 Full Thrust NROL-76 Radar Imaging Active Reimbursement for USA-193, Military Satellite. The so-called "Radar Imaging", which had a serious flaw and was the US Army, shot down. Destroyed: 21 Feb 2008.
USA-277 2017-09-07 Falcon 9 Full Thrust Boeing X-37B OTV-5 Technology Active
USA-278 2017-09-24 Atlas V 541 NROL-42 (Trumpet) ELINT Active
USA-279 2017-10-15 Atlas V 421 NROL-52 (Quasar) Communications Active
USA-280 2018-01-08 Falcon 9 Full Thrust Zuma Classified Presumably failed[14][15][16] Launch reported as successful, but satellite believed to have been lost after failing to separate from payload adapter.[17]
USA-281 2018-01-12 Delta IV M+(5,2) NROL-47 (FIA-R) Radar reconnaissance Active
USA-282 2018-01-20 Atlas V 411 SBIRS GEO-4 Missile detection Active
USA-283 2018-04-14 Atlas V 551 AFSPC-11 / CBAS Communications Active
USA-284 2018-04-14 Atlas V 551 AFSPC-11 / EAGLE Technology demonstration Active Payload carrier which further deployed USA-285 to USA-287 experiments
USA-288 2018-10-17 Atlas V 551 AEHF-4 Communications Active
USA-289 2018-12-23 Falcon 9 Block 5 GPS III-SV01 Navigation Active Vespucci
USA-290 2019-01-19 Delta IV Heavy NROL-71 (KH-11 Kennen) Optical reconnaissance Active
USA-291 2019-03-15 Delta IV WGS-10 Communications Active
USA-292 2019-08-08 Atlas V 551 AEHF-5 Communications Active
USA-293 2019-08-22 Delta IV GPS III-SV02 Navigation Active Magellan
USA-294 2020-01-31 Electron NROL-151 Classified Unknown
USA-295 2017-09-07 Falcon 9 Unknown Classified Unknown Cubesat deployed by Boeing X-37 spaceplane. Unannounced until 2020.
USA-296 2017-09-07 Falcon 9 Unknown Classified Unknown Cubesat deployed by Boeing X-37 spaceplane.
USA-297 2017-09-07 Falcon 9 Unknown Classified Unknown Cubesat deployed by Boeing X-37 spaceplane.
USA-298 2020-03-26 Atlas V 551 AEHF-6 Communications Testing
USA-299 2020-05-17 Atlas V 501 Boeing X-37B OTV-6 (USSF-7) Technology
USA-300 2020-05-17 Atlas V 501 FalconSAT-8 Cubesat deployed by Boeing X-37B OTV-6 spaceplane around 28 May 2020.
USA-301 2020-06-13 Electron RASR-2 Classified
USA-302 2020-06-13 Electron RASR-2 Classified
USA-303 2020-06-13 Electron RASR-2 Classified
USA-304 2020-06-30 Falcon 9 Block 5 GPS III-SV03 Navigation Active Matthew Henson
USA-305 2020-07-15 Minotaur IV / Orion 38 NROL-129
USA-306 2020-07-15 Minotaur IV / Orion 38 NROL-129
USA-307 2020-07-15 Minotaur IV / Orion 38 NROL-129
USA-308 2020-07-15 Minotaur IV / Orion 38 NROL-129
USA-309 2020-11-05 Falcon 9 Block 5 GPS III-SV04 Navigation Sacagawea
USA-310 2020-11-13 Atlas V 531 NROL-101
USA-311 2020-12-10 Delta IV Heavy NROL-44 (Mentor) SIGINT
USA-312 2020-12-19 Falcon 9 Block 5 NROL-108 Launched with USA-313
USA-313 2020-12-19 Falcon 9 Block 5 NROL-108 Launched with USA-312

See also

Notes
  1. "SeeSat-L - Milstar 5 on OIG". SeeSat-L. 16 January 2002. Retrieved 1 October 2012.
  2. "Stacksat (POGS & SSR / TEX / SCE)". Gunter's Space Page. 25 July 2012. Retrieved 1 October 2012.
  3. "Stacksat P87-2". Astronautix.com. Archived from the original on 5 October 2012. Retrieved 1 October 2012.
  4. http://www.space.com/28709-military-weather-satellite-explodes-photo.html
  5. Lafleur, Claude (1 October 2004). "Spacecrafts Launched in 2001". Retrieved 27 May 2015.
  6. Graham, William (11 March 2011). "Delta IV dodges upper level winds and launches with NROL-27 satellite". NASASpaceFlight.com. Retrieved 15 July 2016.
  7. "NASA - NSSDC - Spacecraft - Details". National Space Science Data Center. Retrieved 1 October 2012.
  8. "Jonathan's Space Report No. 640". Jonathan McDowell. Archived from the original on 24 March 2012. Retrieved 18 May 2011.
  9. "USA 238". National Space Data Science Center. NASA. Retrieved 24 December 2012.
  10. "United Launch Alliance Delta IV Successfully Launches Global Positioning System Satellite for the US Air Force". United Launch Alliance. 4 October 2012. Archived from the original on 7 December 2013. Retrieved 24 December 2012.
  11. "OTV-3". National Space Data Science Center. NASA. Retrieved 24 December 2012.
  12. Gruss, Mike (25 July 2016). "U.S. Air Force blames power failure for loss of DMSP-F19 weather satellite". SpaceNews.
  13. "CLIO Atlas V Mission Overview" (PDF). United Launch Alliance. 2014. Archived from the original (PDF) on 4 March 2016. Retrieved 8 February 2016.
  14. Berger, Eric (8 January 2018). "It's not official, but sources say the secretive Zuma satellite was lost". Ars Technica. Retrieved 8 January 2018.
  15. Pasztor, Andy (9 April 2018). "Probes Point to Northrop Grumman Errors in January Spy-Satellite Failure". The Wall Street Journal. Retrieved 8 April 2018.
  16. Sheetz, Michael (9 April 2018). "Northrop Grumman, not SpaceX, reported to be at fault for loss of top-secret Zuma satellite". Yahoo! Finance. CNBC. Retrieved 26 August 2018.
  17. Grush, Loren (9 January 2018). "Did SpaceX's secret Zuma mission actually fail?". The Verge. Retrieved 9 January 2018.

References
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