October 2017
Exploring Jupiter’s icy moons
...capacity will be at least 1.4 Gbit/day during the Ganymede phase. To perform its mission, the spacecraft will have a delta...and the transfer to a Ganymede-bound trajectory during the science phase at Jupiter, whose main events are given in Table 2. The...
August 2020
Interstellar aspirations
... to seven years to address the three key technical challenges mentioned above. Pending successful completion of this research phase, a second phase lasting up to ten years will entail building a scaled prototype system. The cost estimate for such...
May 2024
The challenges of satellite communications on the move
...to the market This article is by no means intended to cover all of the challenges that systems engineers face in implementing a phased array antenna on a moving platform, simply to point out some of the key technical challenges where innovative ideas...
April 2019
LISA Pathfinder – paving the way for future studies of the gravitational universe
... equipment. LISA Technology Package. During the DRS experimental phase, the DRS computer and a set of eight colloidal... propulsion modules which would be jettisoned after the transfer phase. Like LISA Pathfinder, each spacecraft houses two free...
April 2017
Mega-challenges for mega-constellations
...satellites failed to meet the disposal requirement). The third phase showed a steep population decrease, which started at the ...long-term evolution of the LEO population beyond this phase was greatly influenced by the extent of successful ...
May 2018
Space safety – the problem with dual hatting
... above, NASA seems to want to skimp on concurrent documentation. Normally critical safety issues are identified at the design phase and suitable quality control measures are implemented and enforced. This statement seems to indicate that NASA...
