Satellite Digest 559

摘要

1. Dragon freighter spacecraft, ISS Mission SpX-17, built and launched by SpaceX as part of NASA's CRS programme for transport to ISS with 1,517 kg of internal cargo including new experiments and the RED-EYE satellite to demonstrate inter-satellite communications for DARPA and 965 kg of unpressurised cargo: OCO 3 with two cryo-cooled infra-red imaging spectrometers for atmospheric carbon-dioxide concentration and a third for oxygen concentration as calibration and STP-H6 with eight experiments including an X-ray communication system (XCOM) and a star tracker (NISTEx Ⅱ). Launch vehicle first stage landed in the Atlantic Ocean on the Of Course I Still Love You barge 22 km downrange. Spacecraft, including a return capsule from the Dragon CRS 12 mission, captured by the ISS arm May 6.46 and docked at the ISS/ Harmony nadir port May 6.56. OCO 3 was transferred to Kibo EF and STP-H6 was transferred to ELC1. They were replaced in Dragon by SCAN and CATS experiments.