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From Wikipedia, the free encyclopedia

NamesDemonstration and Experiment of Space Technology for INterplanetary voYage Phathon fLyby dUSt science
Mission typeAsteroid flyby
Mission durationtotal: ≥4 years
cruise: ≈2 years[1]
Spacecraft properties
BusSSS (small scientific satellite) by ISAS[1]
Launch mass480 kg (1,060 lb)
including 60 kg xenon and 15.4 kg hydrazine[2]
Power4.7 kW[2] from solar panels
Start of mission
Launch date2024 (planned)[3]
RocketEpsilon S[3]
Launch siteUchinoura
Flyby of 3200 Phaethon
Closest approach2028 (planned)[4]
BandX band [2]
Medium-class Science Program

DESTINY+ (Demonstration and Experiment of Space Technology for INterplanetary voYage Phaethon fLyby dUSt science) is a planned mission to flyby the meteor shower parent body 3200 Phaethon, as well as various minor bodies originating from the "rock comet". The spacecraft is being developed by the Japanese space agency JAXA, and will demonstrate advanced technologies for future deep space exploration. As of 2020, DESTINY+ is planned to be launched in 2024.[3][5]


DESTINY+ will be launched from Uchinoura Space Center by an Epsilon S rocket into low Earth orbit, and will spend 1.5 years raising its orbit with ion engines.[2] A Lunar flyby will accelerate the probe into an interplanetary orbit. During this cruise time it will flyby a few near Earth objects for study, including the transition body 3200 Phaethon in 2028, as well as measure interplanetary and interstellar dust.[6][4]

The probe's ion engines have the capability to perform another orbit transfer to study additional objects.[1]


DESTINY+ will be a technology demonstrator to further improve operations of low cost solar electric propulsion in deep space. It will also demonstrate innovative light-weight solar array panel technology. The scientific aspect of this mission is to understand origin and nature of dusts, which are key sources of organic compounds to Earth. It will also observe dusts from comet/asteroid 3200 Phaethon using a dust analyzer and will map its surface using a multiband telescopic camera to understand the mechanisms of dust ejection.[2] The spacecraft will flyby as close as 500 km (310 mi) from 3200 Phaethon.[2]


DESTINY+ will use ultra light-weight solar panels and heat-actuated folding radiators, along with compact avionics. The spacecraft is designed to tolerate a radiation dose up to approximately 30 krad by using a 3 mm aluminum shield.[2]


The spacecraft will be propelled by four μ10 solar electric ion engines,[2] as used by Hayabusa and Hayabusa2, but while its predecessors operated only up to three engines simultaneously, DESTINY+ will use all four simultaneously[7] for a total thrust of 40 mN (specific impulse: 3000 s; acceleration: 83 μm/s2; power: 1670 W.[2]) The total dry mass (excludes xenon propellant) of the ion engine system is 59 kg (130 lb).[2]


DESTINY PLUS will cary three scientific instruments:[6]

  • DESTINY Dust Analyzer (DDA) — The DESTINY Dust Analyzer (2.7 kg) will be provided by the German Aerospace Center (DLR),[8] and is being developed by the University of Stuttgart.[2][3]
  • Telescopic Camera for Phaethon (TCAP) — The telescopic camera has a mass of 15.8 kg.[2]
  • Multiband Camera for Phaethon (MCAP) — The multiband camera has a mass of 3.5 kg and will detect light in 390 nm, 550 nm, 700 nm, 850 nm wavelengths.[2]

See also


  1. ^ a b c DESTINY Mission Overview. (PDF) Yasuhiro KAWAKATSU. JAXA
  2. ^ a b c d e f g h i j k l m Toyota, Hiroyuki; Nishiyama, Kazutaka; Kawakatsu, Yasuhiro (15 August 2017). "DESTINY+: Deep Space Exploration Technology Demonstrator and Explorer to Asteroid 3200 Phaethon" (PDF). Low-Cost Planetary Missions Conference. Archived from the original (PDF) on 14 September 2017. Retrieved 2017-09-21.
  3. ^ a b c d "DESTINY+ – Germany and Japan begin new asteroid mission". DLR. 12 November 2020. Retrieved 15 November 2020.
  4. ^ a b Sommer, M.; Krüger, H.; Srama, R.; Hirai, T.; Kobayashi, M.; Arai, T.; Sasaki, S.; Kimura, H.; Moragas-Klostermeyer, G.; Strub, P.; Lohse, A.-K. (21 September 2020). Destiny+ Dust Analyzer – Campaign & timeline preparation for interplanetary & interstellar dust observation during the 4-year transfer phase from Earth to Phaethon. Europlanet Science Congress 2020. Copernicus Publications. Retrieved 27 September 2020.
  5. ^ Kuninaka, Hitoshi (19 May 2020). "宇宙科学ミッション打上げ計画について" (PDF) (in Japanese). JAXA. Retrieved 2020-09-28.
  6. ^ 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:
  7. ^ "DESTINY+: Technology Demonstration and Exploration of Asteroid 3200 Phaethon" (PDF). ISAS/JAXA. 20 September 2017. Retrieved 2017-09-22.
  8. ^ "DLR-JAXA Joint Statement concerning the bilateral cooperation" (Press release). JAXA. September 10, 2017. Retrieved September 21, 2017.

External links

This page was last edited on 11 January 2021, at 01:12
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