Hongyan-1 is the first demonstration satellite for Hongyan, which is a planned constellation consisting of 320 satellites in low Earth orbit. Yunhai-2 is a constellation of Chinese military meteorological satellites. Reportedly the satellites use Global Navigation Satellite System (GNSS) Radio Occultation (GNSS-RO) to collect atmospheric data for weather prediction and for ionosphere, climate, and gravity research.
Low Earth OrbitGPS-IIIA (Global Positioning System) is the first evolution stage of the third generation of the GPS satellites. It consists of the first ten (known as "tranche") of GPS III satellites. This program will improve position, navigation, and timing services for the warfighter and civil users worldwide and provide advanced anti-jam capabilities yielding superior system security, accuracy and reliability.
Medium Earth Orbit B1054 - Maiden Flight Atlantic OceanNASA's signed a Venture Class Launch Services contract with Rocket Lab to launch 10 cubesats as a part of CubeSat Launch Initiative Educational Launch of Nanosatellites (ELaNa) program. Cubesats are: ALBus / CeREs / CHOMPTT / Da Vinci / ISX / NMTSat / RSat-P / Shields 1 / STF 1 / CubeSail A / CubeSail B /TOMSat EagleScout / TOMSat R3 / SHFT 1
Low Earth Orbit #ELaNa19