satellite.js

SGP4/SDP4 calculation library
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sgp4sdp4satelliteTLEtwo-line elementsOMMsgp4prop

spacedatastandards.org

space data standards framework based on ccsds standards and google flatbuffers
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celestrakcelestrak.orgflatbuffersccsdsnasaspace forceesajaxaisroroscosmoscnesdlruksaasisupremesatksasupremesatplanetary societyblue originspacexorbital sciencesaerospace corporationboeinglockheed martinsgp4mean elementsspacedata standardsstandardssatelliteorbit determinationspace debrisspace situational awarenessconstellationtlesastroinformaticsspacemissiongeospatialastronauticsspace engineeringspace sciencespace explorationspace industrycommercial spacecivil spacespace technologymars missionslunar missionsspace policyspace weatherspace lawspace securityartemis programexoplanetsinternational space stationsmall satellitescubesatsspace telescopesspace probesspace roboticsdeep space networkspace logisticsrocket sciencespace launch systemsjsonjavascripttypescriptphppythonjavadartgoswiftc++c#rustlobster

tle.js

Satellite TLE tools in JavaScript.
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satellitesatellitestletwo-line element setspacetlegeodesygeodeticssatellite.js

axion-planetary-mcp

🌍 The Foundation for Democratizing Geospatial AI Agents - Transform PhD-level Earth observation into natural conversation
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geospatial-aiai-agentsearth-observationmcpclaudeclaude-desktopearth-enginegoogle-earth-enginegeospatialsatelliteremote-sensinggisndvimodel-context-protocoldemocratizationfoundationrevolutionclimate-actionprecision-agriculturedisaster-response

worldwindjs

WorldWindJS is an interactive 3D globe library featuring imagery, maps, terrain and 2D projections from the Web WorldWind virtual globe SDK from NASA and ESA plus several community contributions.
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sdkworldwind3dglobecartographymapsearthterrainelevationssatelliteimagerynasaesageospatialgishtml5javascriptwebglbrowser