Destiny Plus

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Destiny Plus ( D emonstration and E xperiment of S pace T echnology for IN terplanetary vo Y age P haethon f L Yby d US t science ; stylized DESTINY + ) is a planned space mission of the Japanese space agency JAXA , in cooperation with the German space agency DLR . The primary goal is to test the ion drive on an interplanetary mission. However, scientific goals are also sought. For example, cosmic dust is to be analyzed on the mission and a targeted flyby of the asteroid (3200) Phaethon, the presumed original body of the meteor shower of the Geminids , is to be carried out. Destiny Plus is scheduled to Template: future / in 2 yearsstart in 2022 and after four years (3200) pass Phaethon with a distance of 500 km.

Mission overview

Destiny Plus is scheduled to launch from the Uchinoura Space Center with an Epsilon rocket into low Earth orbit in 2022 . In the coming months, the orbit will be expanded with the help of the ion thrusters. A flyby of the moon will then accelerate the probe into an interplanetary orbit. On the further flight it is hoped to be able to analyze interplanetary and cosmic dust. There are also plans to fly by some near-earth objects, especially the asteroid (3200) Phaethon.

After that, the ion thrusters still have fuel for course corrections in order to possibly approach further targets.

aims

Destiny Plus is intended to demonstrate the suitability of ion engines for space missions. The scientific aspect of the mission is to investigate the nature and origin of cosmic dust , which is believed to be an important source of organic matter on earth. In addition, she will examine the asteroid (3200) Phaethon and the dust emanating from it, as well as its surface with a camera in order to understand the mechanism of dust emission.

probe

Destiny Plus will be equipped with thin-film solar cells and modern sensors for temperature control. Your position control system is designed to be as compact as possible. The spaceship is shielded with a protective aluminum shield so that it can withstand radiation exposure of up to 30  krad .

drive

The spaceship is powered by four μ10 solar electric ion thrusters , as they were already used in the Hayabusa and Hayabusa 2 probes . In contrast to its predecessors, DESTINY + will for the first time use all four engines at the same time. With an output of 1670 watts, the thrusters deliver a total thrust of 40 mN , which accelerates the probe by 83 μm / s 2 . The mass of the engines (excluding the xenon fuel ) is 59 kg.

Instruments

Destiny Plus will have three scientific instruments on board:

  • Destiny Dust Analyzer (DDA) - The Destiny Dust Analyzer (2.7 kg) is contributed by DLR and built by the University of Stuttgart .
  • Telescopic Camera for Phaethon (TCAP) - the camera has a mass of 15.8 kg.
  • Multiband Camera for Phaethon (MCAP) - The spectroscopic camera weighs 3.5 kg and examines light in the wavelengths 390 nm, 550 nm, 700 nm and 850 nm.

See also

Web link

credentials

  1. ↑ a b c d e f g h i j Hiroyuki Toyota, Kazutaka Nishiyama, Yasuhiro Kawakatsu: DESTINY + : Deep Space Exploration Technology Demonstrator and Explorer to Asteroid 3200 Phaethon (PDF) Low-Cost Planetary Missions Conference. August 15, 2017. Retrieved September 21, 2017.
  2. ↑ Expansion of German-Japanese cooperation in space: Joint projects on cosmic dust and internal combustion engines. DLR, November 2, 2017, accessed April 30, 2019 .
  3. ↑ DESTINY +: Deep Space Exploration Technology Demonstrator and Explorer to Asteroid 3200 Phaethon. (PDF) August 2017, accessed April 30, 2019 .
  4. ^ A b Studies on Solar System Explorations using DESTINY: the Demonstration and Experiment of Space Technology for Interplanetary Voyage . (PDF) Takahiro Iwata, Yasuhiro Kawakatsu, Go Murakami, Yuichiro Ezoe, Shingo Kameda, Kunihiro Keika, Tomoko Arai, Shuji Matsuura, Takanao Saiki, Takeshi Imamura, Kazunori Ogohara, Akira Oyama, Toshinori Ikenaga. ISTS Special Issue: Selected papers from the 30th International Symposium on Space Technology and Science. Vol. 14 (2016), No. ists30; doi : 10.2322 / tastj.14.Pk_111
  5. ↑ DESTINY Mission Overview . (PDF) Yasuhiro KAWAKATSU. JAXA
  6. ↑ DESTINY ＋: Technology Demonstration and Exploration of Asteroid 3200 Phaethon (PDF) ISAS / JAXA . September 20, 2017. Retrieved September 22, 2017.
  7. ↑ DLR-JAXA Joint Statement concerning the bilateral cooperation . JAXA.