At 22:52 UTC on April 29, 2019, China used a Long March 4B rocket from the Taiyuan Satellite Launch Center to successfully launch two Tianhui-2-01 satellites. The satellites will be used for scientific experiments, land resource survey, geographic survey and mapping.
Sun-Synchronous OrbitThis is the 12th planned flight of the Orbital ATK's uncrewed resupply spacecraft Cygnus and its 11th flight to the International Space Station under the Commercial Resupply Services contract with NASA. Northrop Grumman named the vehicle after Apollo 1 astronaut Roger Chaffee.
Low Earth Orbit #NG11Arabsat-6A is a Saudi Arabian communications satellite to be positioned at 30.5°East orbital slot. Arabsat-6A was built by Lockheed Martin for Arabsat and will deliver TV, internet and mobile phone services to the Middle East, Africa and Europe.
Supersynchronous Transfer Orbit #ArabSat6A B1055 - Maiden Flight Of Course I Still Love You B1053 - Maiden Flight Landing Zone 2 B1052 - Maiden Flight Landing Zone 1The main payload is an electronic intelligence satellite EMISAT for India's Defence Research and Development Organization. This launch will also be the first flight of PSLV-QL, which is a version of PSLV rocket with four strap-on boosters. The fourth stage of the rocket will serve as an experimental platform for in-orbit experiments and will carry a small payload developed by Indian Institute of Space Science and Technology. The stage is equipped with solar panels and is expected to remain active for at least six months.
Low Earth OrbitRadio Frequency Risk Reduction Deployment Demonstration (R3D2) is a mission for Defense Advanced Research Projects Agency (DARPA). It will test a prototype reflect array antenna which is intended to improve radio communications in small spacecraft.
Low Earth Orbit #R3D2