L4 Lagrange point

Person archive with linked event snippets and related articles.

Browse People
Accelerometer Albert Einstein Alphonsus Alvan Clark Ambient Light Sensor André Michaux Annalen der Physik Anne Stuart Arianespace Artemis II ASI AsiaSat 3S Atlas-Agena AVUM Baikonur Baikonur Cosmodrome Beatrice Shilling Bitstring Status List v1.0 Boeing BOLT-2 Breeze-M BurstCube C. Gordon Fullerton Cape Canaveral Cape Canaveral Air Force Station Cassini Cerro Pachón César Lattes Columbia Controlled Identifiers v1.0 COSE CRS-30 CSS Lists and Counters Module Level 3 CSS Namespaces Module Level 3 CSS Shapes Module Level 1 CSS Speech Module CSS Writing Modes Level 3 Data Integrity ECDSA Cryptosuites v1.0 Data Integrity EdDSA Cryptosuites v1.0 Delta II Dragon Drew Feustel Dumsat EchoStar XIV Edward C. Kendall Elise Deroche Emory Chaffee ESRO Europe’s Spaceport European Space Research Organisation Expedition 1 Expedition 55 Expedition 56 Falcon 9 Faroe Islands Fregat French Guiana Gemini South Generic Sensor API George A. Olah George Chrystal George K. Batchelor Global Positioning System Goodrich Acheson GPS IIR-11 Gregorio Y. Zara Gyroscope H. Aiken Herbert Kroemer High Energy Solar Spectroscopic Imager Hulusi Behçet Imaging Science Subsystem Ingenuity Input Events Level 2 International Launch Services ISO 14001 ISO 22095-2 ISO 22095-3 ISO 45001 ISO 9001 ISO/TR 8344 Jack R. Lousma James Dewar James Mason Crafts Jan Ernst Matzeliger Johannes Kepler John Elder John Fothergill JOSE Joseph Gall Josephine Cochrane JPL Julius Kahn Karl Ferdinand von Gräfe Karl von Goebel Kennedy Kennedy Space Center L4 Lagrange point Launch Pad 39B Leonardo Libby Riddles Long March-8 Magnetometer Manifest for Web Application Marina Vasilevskaya Mariner G Mars 1 Martin Davis MDIS Mercury MESSENGER Microsoft Mid-Atlantic Regional Spaceport Mir NASA NASA Planetary Data System National Reconnaissance Office NROL-123 Oleg Artemyev Oleg Novitskiy

March 21 in Universe History: Space Missions, Satellites and Exploration

March 21, 2026
2012 On 21 March 2012, Cassini’s Imaging Science Subsystem spent about 12 hours searching for possible small satellites near the stability region 60 degrees ahead of Titan in its orbit around Saturn, at the L4 Lagrange point. The campaign aimed to detect new moons or refine faint-object orbits, improving hazard assessment and observation planning during continuing mission operations at Saturn.
All names in this article
Alphonsus Arianespace ASI AsiaSat 3S Atlas-Agena AVUM Baikonur BOLT-2 BurstCube Cape Canaveral Cassini CRS-30 Dragon Drew Feustel Europe’s Spaceport Expedition 1 Expedition 55 Expedition 56 Falcon 9 French Guiana High Energy Solar Spectroscopic Imager Imaging Science Subsystem Ingenuity International Launch Services JPL Kennedy Leonardo Marina Vasilevskaya Mars 1 MDIS Mercury MESSENGER Mid-Atlantic Regional Spaceport NASA Planetary Data System National Reconnaissance Office NROL-123 Oleg Artemyev Oleg Novitskiy OneWeb PDS4 Standards Reference Perseverance PRISMA Proton Ranger 9 Ricky Arnold Rocket Lab Electron Saturn Soyuz Flight ST28 Soyuz MS-08 SpaceX SPICE Starsem Terrier-Improved Malemute Titan Tracy Dyson Vega Wallops Wallops Island Asia Europe Russia Air Force Research Laboratory Earth Io Mars Moon Sun International Space Station Space Shuttle Discovery STS-102