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Satellites and probes: U

178 satellites and probes
SpacecraftLaunchOperatorLaunch vehicle
UAPSat-1January 9, 2014Universidad Alas PeruanasAntares
UBAKUSATApril 2, 2018—Falcon 9
UFO 10November 23, 1999—Atlas II
UFO 11December 18, 2003—Atlas IIIB
UFO 2September 3, 1993—Atlas I
UFO 4January 29, 1995—Atlas II
UFO 5May 31, 1995—Atlas II
UFO 7July 25, 1996—Atlas II
UFO 9October 20, 1998—Atlas II
UGATUSATSeptember 17, 2009Ufa State Aviation Technical UniversitySoyuz-2.1b
UhuruUhuruDecember 12, 1970—Scout B
UiTMSAT-1UiTMSAT-1June 29, 2018—Falcon 9 Full Thrust
UK-DMCSeptember 27, 2003British National Space CentreKosmos-3M
UK-DMC 2July 29, 2009British National Space CentreDnepr
UKube 1July 8, 2014—Soyuz-2.1b
Ultraviolet ExplorerUltraviolet Explorer2030California Institute of Technology, Goddard Space Flight Center—
UlyssesUlyssesOctober 6, 1990European Space Research and Technology Centre, European Space Operations Centre, Jet Propulsion LaboratorySpace Shuttle
Umbra 01June 30, 2021UmbraFalcon 9 Block 5
Umbra 02January 13, 2022UmbraFalcon 9 Block 5
Umbra 03May 25, 2022UmbraFalcon 9 Block 5
Umbra 04January 3, 2023UmbraFalcon 9 Block 5
Umbra 05January 3, 2023UmbraFalcon 9 Block 5
Umbra 06April 15, 2023UmbraFalcon 9 Block 5
Umbra 07November 11, 2023UmbraFalcon 9 Block 5
Umbra 08November 11, 2023UmbraFalcon 9 Block 5
Umbra 09August 16, 2024UmbraFalcon 9 Block 5
Umbra 10August 16, 2024UmbraFalcon 9 Block 5
Umbra 11November 28, 2025UmbraFalcon 9 Block 5
Umbra 12January 11, 2026UmbraFalcon 9 Block 5
UNAMSAT-BSeptember 5, 1996—Kosmos-3M
UniBRITEFebruary 25, 2013University of ViennaPolar Satellite Launch Vehicle
UniCubeSat-GGFebruary 13, 2012GAUSS SrlVega
UNIFORM-1May 24, 2014Wakayama UniversityH-IIA
Unisat 2December 20, 2002—Dnepr
Unisat 3June 29, 2004—Dnepr
Unisat 5November 21, 2013GAUSS SrlDnepr
UniSat 6UniSat 6June 19, 2014GAUSS SrlDnepr
Unisat-7March 22, 2021—Soyuz-2.1a
UNITEDecember 5, 2018—Falcon 9
United Kingdom SubsatelliteAugust 16, 1984—Delta 3000
Universitetsky-Tatyana-2September 17, 2009—Soyuz-2.1b
UoSat-1October 6, 1981University of SurreyDelta 2000
UoSAT-12April 21, 1999University of SurreyDnepr
UoSAT-2UoSAT-2March 1, 1984University of SurreyDelta 3000
UoSAT-3January 22, 1990University of SurreyAriane 40
UoSAT-4January 22, 1990University of SurreyAriane 40
UoSAT-5July 17, 1991University of SurreyAriane 40
UPM-LBSatJuly 7, 1995—Ariane 40
Upper Atmosphere Research SatelliteUpper Atmosphere Research SatelliteSeptember 12, 1991National Aeronautics and Space AdministrationSpace Shuttle
UPSatUPSatApril 18, 2017University of PatrasAtlas V 401
Urdaneta-ArmsatMay 25, 2022GeocosmosFalcon 9
URESAT-1June 12, 2023—Falcon 9 Block 5
URSA MAIORJune 23, 2017Sapienza University of Rome, GAUSS SrlPolar Satellite Launch Vehicle-XL
USA 113July 31, 1995—Atlas IIA
USA 134October 25, 1997—Atlas IIA
USA 148January 21, 2000—Atlas IIA
USA 171September 9, 2003—Titan IV
USA 182April 30, 2005—Titan IV
USA 257September 17, 2014—Atlas V 401
USA 346September 10, 2023—Atlas V 551
USA 347September 10, 2023—Atlas V 551
USA 348September 10, 2023—Atlas V 551
USA 39June 14, 1989—Titan IV
USA 65November 13, 1990—Titan IV
USA-100March 10, 1994United States Air ForceDelta II
USA-117March 28, 1996United States Air ForceDelta II
USA-126July 16, 1996United States Air ForceDelta II
USA-128September 12, 1996United States Air ForceDelta II
USA-132USA-132July 23, 1997United States Air ForceDelta II
USA-135November 6, 1997United States Air ForceDelta II
USA-145USA-145October 7, 1999United States Air ForceDelta II
USA-150USA-150May 11, 2000United States Air ForceDelta II
USA-151USA-151July 16, 2000United States Air ForceDelta II
USA-154USA-154November 10, 2000United States Air ForceDelta II
USA-156USA-156January 30, 2001United States Air ForceDelta II
USA-158May 18, 2001National Reconnaissance OfficeDelta II
USA-165USA-165April 11, 2005United States Air ForceMinotaur I
USA-166USA-166January 29, 2003United States Air ForceDelta II
USA-167March 11, 2003—Delta IV Medium
USA-168USA-168March 31, 2003United States Air ForceDelta II
USA-170August 29, 2003—Delta IV Medium
USA-175USA-175December 21, 2003United States Air ForceDelta II
USA-176February 14, 2004—Titan IV
USA-177USA-177March 20, 2004United States Air ForceDelta II
USA-178USA-178June 23, 2004United States Air ForceDelta II
USA-180USA-180November 6, 2004United States Air ForceDelta II
USA-183USA-183September 26, 2005United States Air ForceDelta II
USA-184June 28, 2006National Reconnaissance OfficeDelta IV Medium+(4,2)
USA-190USA-190September 25, 2006United States Air ForceDelta II
USA-192USA-192November 17, 2006United States Air ForceDelta II
USA-193USA-193December 14, 2006National Reconnaissance OfficeDelta II
USA-195USA-195October 11, 2007United States Air ForceAtlas V 421
USA-196USA-196October 17, 2007United States Air ForceDelta II
USA-197November 11, 2007—Delta IV Heavy
USA-198December 10, 2007—Atlas V 401
USA-199USA-199December 20, 2007United States Air ForceDelta II
USA-200USA-200March 13, 2008National Reconnaissance OfficeAtlas V 411
USA-201USA-201March 15, 2008United States Air ForceDelta II
USA-203USA-203March 24, 2009United States Air ForceDelta II
USA-204USA-204April 4, 2009United States Air ForceAtlas V 421
USA-206USA-206August 17, 2009United States Air ForceDelta II
USA-207September 8, 2009—Atlas V 401
USA-211USA-211December 6, 2009United States Air ForceDelta IV Medium+(5,4)
USA-213USA-213May 28, 2010United States Air ForceDelta IV Medium+(4,2)
USA-214USA-214August 14, 2010United States Space ForceAtlas V 531
USA-215September 21, 2010National Reconnaissance OfficeAtlas V 501
USA-221November 20, 2010United States Air Force AcademyMinotaur IV
USA-227March 11, 2011National Reconnaissance OfficeDelta IV Medium+(4,2)
USA-229April 15, 2011National Reconnaissance OfficeAtlas V 411
USA-230USA-230May 7, 2011United States Air ForceAtlas V 401
USA-231USA-231June 30, 2011—Minotaur I
USA-232USA-232July 16, 2011United States Air ForceDelta IV Medium+(4,2)
USA-233January 20, 2012United States Air ForceDelta IV Medium+(5,4)
USA-234April 3, 2012National Reconnaissance OfficeDelta IV Medium+(5,2)
USA-235USA-235May 4, 2012United States Space ForceAtlas V 531
USA-236June 20, 2012National Reconnaissance OfficeAtlas V 401
USA-237June 29, 2012—Delta IV Heavy
USA-239USA-239October 4, 2012United States Air ForceDelta IV Medium+(4,2)
USA-241March 19, 2013United States Air ForceAtlas V 401
USA-242USA-242May 15, 2013United States Air ForceAtlas V 401
USA-243USA-243May 25, 2013United States Air ForceDelta IV Medium+(5,4)
USA-244USA-244August 8, 2013United States Air ForceDelta IV Medium+(5,4)
USA-246USA-246September 18, 2013United States Space ForceAtlas V 531
USA-247December 6, 2013National Reconnaissance OfficeAtlas V 501
USA-248USA-248February 21, 2014United States Air ForceDelta IV Medium+(4,2)
USA-250April 10, 2014National Reconnaissance OfficeAtlas V 541
USA-251USA-251May 17, 2014United States Air ForceDelta IV Medium+(4,2)
USA-256USA-256August 2, 2014United States Air ForceAtlas V 401
USA-258USA-258October 29, 2014United States Air ForceAtlas V 401
USA-260USA-260March 25, 2015United States Air ForceDelta IV Medium+(4,2)
USA-262July 15, 2015United States Air ForceAtlas V 401
USA-263July 24, 2015—Delta IV Medium+(5,4)
USA-265October 31, 2015United States Air ForceAtlas V 401
USA-266February 5, 2016United States Air ForceAtlas V 401
USA-267February 10, 2016National Reconnaissance OfficeDelta IV Medium+(5,2)
USA-269July 28, 2016National Reconnaissance OfficeAtlas V 421
USA-272December 7, 2016—Delta IV Medium+(5,4)
USA-273January 21, 2017United States Air ForceAtlas V 401
USA-275March 19, 2017—Delta IV Medium+(5,4)
USA-276May 1, 2017National Reconnaissance OfficeFalcon 9 Full Thrust
USA-281January 12, 2018National Reconnaissance OfficeDelta IV Medium+(5,2)
USA-282January 20, 2018United States Air ForceAtlas V 411
USA-288USA-288October 17, 2018United States Space ForceAtlas V 551
USA-291March 16, 2019—Delta IV Medium+(5,2)
USA-292USA-292August 8, 2019United States Space ForceAtlas V 551
USA-298USA-298March 26, 2020United States Space ForceAtlas V 551
USA-310November 13, 2020—Atlas V 531
USA-315May 18, 2021—Atlas V 421
USA-326February 2, 2022National Reconnaissance OfficeFalcon 9 Block 5
USA-337July 1, 2022United States Space ForceAtlas V 541
USA-47October 21, 1989United States Air ForceDelta II
USA-49December 11, 1989United States Air ForceDelta II
USA-50January 24, 1990United States Air ForceDelta II
USA-54March 26, 1990United States Air ForceDelta II
USA-554August 13, 2025—Vulcan
USA-63August 2, 1990United States Air ForceDelta II
USA-64October 1, 1990United States Air ForceDelta II
USA-66November 26, 1990United States Air ForceDelta II
USA-708October 2, 2026National Reconnaissance OfficeFalcon Heavy
USA-71July 4, 1991United States Air ForceDelta II
USA-79February 23, 1992United States Air ForceDelta II
USA-80April 10, 1992United States Air ForceDelta II
USA-83July 7, 1992United States Air ForceDelta II
USA-84September 9, 1992United States Air ForceDelta II
USA-85November 22, 1992United States Air ForceDelta II
USA-87December 18, 1992United States Air ForceDelta II
USA-88February 3, 1993United States Air ForceDelta II
USA-90March 30, 1993United States Air ForceDelta II
USA-91May 13, 1993United States Air ForceDelta II
USA-92June 26, 1993United States Air ForceDelta II
USA-94August 30, 1993United States Air ForceDelta II
USA-96October 26, 1993United States Air ForceDelta II
USERSSeptember 10, 2002—H-IIA
UVSQ-SATUVSQ-SATJanuary 24, 2021—Falcon 9
UWE-1October 27, 2005—Kosmos-3M
UWE-2UWE-2September 23, 2009University of WürzburgPolar Satellite Launch Vehicle
UWE-3November 21, 2013—Dnepr
UWE-4December 27, 2018—Soyuz-2.1a