QZSS (Quasi Zenith Satellite System) is a Japanese satellite navigation system operating from inclined, elliptical geosynchronous orbits to achieve optimal high-elevation visibility in urban canyons and mountainous areas. The navigation system objective is to broadcast GPS-interoperable and augmentation signals as well as original Japanese (QZSS) signals from a three-spacecraft constellation. The navigation system objective is to broadcast GPS-interoperable and augmentation signals as well as original Japanese (QZSS) signals from a three-spacecraft constellation in inclined, elliptical geosynchronous orbits.
Geosynchronous Transfer OrbitSTP-S30 is a complex mission that will deliver research experiments and technology demonstrations to orbit for the DoD and contribute to future space systems development. The projected primary payload, DISKSat, will demonstrate sustained very low earth orbit (VLEO) flight and test a unique, 1-meter diameter, disk-shaped satellite bus that is designed to increase on-orbit persistence.
Low Earth OrbitElektro-L is a series of meteorological satellites developed for the Russian Federal Space Agency by NPO Lavochkin. They are designed to capture real-time images of clouds and the Earth's underlying surface, heliogeophysical measurements, collection and translating hydrometeorological and service data.
Geostationary OrbitA pair of Russian optical Earth observation satellites built by the Progress Rocket Space Centre for obtaining stereo images of the Earth's surface, with maximum resolution of 1.2 m in panchromatic mode and a swath width of 32 km.
Sun-Synchronous OrbitCAS500-2 is the second of two similar South Korean Earth observation satellites. These spacecraft feature the AEISS-C imaging system with a ground resolution of 0.5 m in panchromatic mode and 2 m in color mode. CAS500-4 is a wide area Earth-observation satellite with a wide-area electro-optical camera (swath width of 120 km and resolution of 5 m) to be mainly used by the Rural Development Administration and the Korea Forest Service for observing crops, agricultural water resources and forest resources.
Sun-Synchronous OrbitHawkEye 360 is a a space-based civil global intelligence satellite network using radio frequency (RF) technology to help monitor transportation across air, land and sea and assist with emergencies, and to provide civil SIGINT (Signal Intelligence) mission. The constellation of small satellites (named Hawk ) will collect information on specific radio signals worldwide to provide high-precision radio frequency mapping and analytics from Low Earth orbit (LEO).
Low Earth Orbit2 satellites built by the China Aerospace Science and Industry Corporation (CASIC) for testing operations of Very Low Earth Orbit (VLEO) satellites f…
3 Chinese satellites reported to be for "orbital technological testing" purposes. Actual usage not known.
A batch of 28 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.
A batch of 29 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.
Synthetic aperture radar Earth observation satellite for Japanese Earth imaging company iQPS.
Sentinel-1D carries an advanced radar technology to provide an all-weather, day-and-night supply of imagery of Earth’s surface as part of the Sentine…
Classified Earth observation satellite officially reported as for "national resources/hydrology/meteorology surveying & disaster management" purposes.
Communications Satellite for the Indian Navy, replacing GSAT-7 for secure real-time links between Indian warships, submarines, aircraft, and shore-ba…
Dedicated rideshare flight to a mid-inclination orbit with dozens of small microsatellites and nanosatellites for commercial and government customers.
A batch of 28 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.