https://cdn.earthdata.nasa.gov/conduit/upload/5182/KeywordsCommunityGuide_Baseline_v1_SIGNED_FINAL.pdf 23.6 2026-03-19T10:41:57.720Z https://gcmd.earthdata.nasa.gov/KeywordViewer/scheme/instruments/e5fde4c4-15cd-4278-b922-005488df096f GPS Date=2019-02-22 User Id=mmorahan Entity=WeightedRelation Operation=INSERT System Note=insert WeightedRelation New Value=id: null related concept uuid: ab7f9a64-ca5d-4795-94ff-fd5367d39f9f relationship type: null relationship value: null generated by: null Date=2019-02-22 User Id=mmorahan Entity=WeightedRelation Operation=INSERT System Note=insert WeightedRelation New Value=id: null related concept uuid: 769a52d4-7db1-4b8e-8d39-6fee4e74d34f relationship type: null relationship value: null generated by: null Date=2019-02-22 User Id=mmorahan Entity=WeightedRelation Operation=INSERT System Note=insert WeightedRelation New Value=id: null related concept uuid: 054787a6-0c47-43af-a4ee-05c572dd1705 relationship type: null relationship value: null generated by: null A Global Positioning System (GPS) is a constellation of 24 satellites, developed by the U.S. Department of Defense that orbit the earth at an altitude of 20,200 km. These satellites transmit signals that allows a GPS receiver anywhere on earth to calculate its own location. The GPS is used in navigation, mapping, surveying, and other applications where precise positioning is necessary.Group: Instrument_Details Entry_ID: GPS Group: Instrument_Identification Instrument_Category: Earth Remote Sensing Instruments Instrument_Class: Passive Remote Sensing Instrument_Type: Positioning/Navigation Instrument_Subtype: GPS Short_Name: GPS Long_Name: Global Positioning System End_Group Group: Associated_Platforms Short_Name: UND CITATION II Short_Name: SNOE Short_Name: GRACE Short_Name: DC-8 Short_Name: AIRCRAFT End_Group Online_Resource: http://scign.jpl.nasa.gov/learn/gps1.htm Creation_Date: 2007-02-06 Group: Instrument_Logistics Instrument_Owner: USA/NASA Instrument_Owner: USA/DOD/USAF End_GroupEnd_Group 2019-02-22 17:24:11.0