The science operations of the spacecraft and remote sensing instruments for the Martian Moon eXploration (MMX) mission are discussed by the mission operation working team. In this paper, we describe the Phobos observations during the first 1.5 years of the spacecraft’s stay around Mars, and the Deimos observations before leaving the Martian system. In the Phobos observation, the spacecraft will be placed in low-altitude quasi-satellite orbits on the equatorial plane of Phobos and will make high-resolution topographic and spectroscopic observations of the Phobos surface from five different altitudes orbits. The spacecraft will also attempt to observe polar regions of Phobos from a three-dimensional quasi-satellite orbit moving out of the equatorial plane of Phobos. From these observations, we will constrain the origin of Phobos and Deimos and select places for landing site candidates for sample collection. For the Deimos observations, the spacecraft will be injected into two resonant orbits and will perform many flybys to observe the surface of Deimos over as large an area as possible.
Graphical Abstract
NHK will present highly realistic broadcasts of the 2020 Olympic Games in Tokyo via 8K Super Hi-Vision, the world's most sophisticated broadcasting system. Here, we describe our preparations for 8K broadcasting, particularly for the test broadcasting via satellite due to start in 2016. In particular, we describe our activities related to standardization and development of program production equipment, play-out, and a distribution system for the 8K broadcasting. Regarding the production and distribution systems, we present the results of experimental satellite broadcasting performed this year. We also discuss the current status of the high dynamic range (HDR) function for the 8K system, the multi-format production workflow, and remaining issues.
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