Engineering:Hisaki (satellite)

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Short description: Japanese satellite
Hisaki
Hisaki-sprint-a-artistconcept2013.png
Artistic rendering of Hisaki in orbit.
Mission typeUltraviolet astronomy
OperatorJAXA
COSPAR ID2013-049A
SATCAT no.39253
Websitewww.jaxa.jp/projects/sat/sprint_a/
Mission duration~1 year planned (science phase) 10 years, 10 months and 7 days (achieved)
Spacecraft properties
BusNEXTAR NX-300L
ManufacturerNEC
Launch mass348 kg (767 lb)
Dimensions4×1×1 m (13.1×3.3×3.3 ft)
Power900 watts
Start of mission
Launch date14 September 2013, 05:00 (2013-09-14UTC05Z) UTC
RocketEpsilon
Launch siteUchinoura
End of mission
DisposalDecommissioned[1]
Deactivated8 December 2023
Orbital parameters
Reference systemGeocentric
RegimeLow Earth
Semi-major axis7,431.52 kilometres (4,617.73 mi)[2]
Eccentricity0.0136807[2]
Perigee altitude957.9 kilometres (595.2 mi)[2]
Apogee altitude1,161.8 kilometres (721.9 mi)[2]
Inclination29.72 degrees[2]
Period106.27 minutes[2]
Epoch23 January 2015, 18:21:14 UTC[2]
 

Hisaki, also known as the Spectroscopic Planet Observatory for Recognition of Interaction of Atmosphere (SPRINT-A) was a Japanese ultraviolet astronomy satellite operated by the Japan Aerospace Exploration Agency (JAXA). The first mission of the Small Scientific Satellite program,[3] it was launched in September 2013 on the maiden flight of the Epsilon rocket. It was used for extreme ultraviolet observations of the Solar System planets.

Hisaki was decommissioned by deactivation on 8 December 2023.[1]

Launch and naming

Hisaki was launched with an Epsilon rocket, which was its first flight. The four-stage Epsilon rocket[4] flew from the Mu rocket launch complex at the Uchinoura Space Center. The launch occurred at 05:00 UTC on 14 September 2013, following a scrubbed launch attempt on 27 August 2013.[5] Following its successful insertion into orbit and deployment of its solar arrays, the satellite was renamed Hisaki, having been designated SPRINT-A until that point.[6]

Hisaki was named after a cape Hisaki (火崎, literally Cape Fire) used by local fishermen to pray for safe travels in the eastern part of Kimotsuki, Kagoshima near the Uchinoura Space Center, but has the additional meaning of "beyond the Sun".[7][8] An old name for the mission was EXCEED (Extreme Ultraviolet Spectroscope for Exospheric Dynamics).[9]

Observations

Hisaki carries an extreme ultraviolet spectrometer, which is used to study the composition of the atmospheres and the behavior of the magnetospheres of the planets of the Solar System.[10] Designed for a one-year mission, Hisaki has been operated in a low Earth orbit with a perigee of 950 km (590 mi), an apogee of 1,150 km (710 mi), 31 degrees of inclination and a period of 106 minutes.[11]

In October 2020 it performed joint observation with the BepiColombo probe which performed a flyby of Venus en route to Mercury.[12]

In 2023, Hisaki was,[13]performing joint observations with Juno orbiter.[14]

It was decommisioned in December 2023.[15]

References

  1. ↑ 1.0 1.1 "Completed: More than 10 years of observations". ISAS/JAXA. https://www.isas.jaxa.jp/home/sprint-a/index_en.html#section04. 
  2. ↑ 2.0 2.1 2.2 2.3 2.4 2.5 2.6 "SPRINT-A (HISAKI) Satellite details 2013-049A NORAD 39253". N2YO. 23 January 2015. http://www.n2yo.com/satellite/?s=39253. 
  3. ↑ "Shujiro Sawai, "Semi-Made-To-Order" Satellites: Faster, Cheaper, More Advanced". Japan Aerospace Exploration Agency. http://www.jaxa.jp/article/interview/vol56/p2_e.html. 
  4. ↑ "Epsilon Launch Vehicle". Japan Aerospace Exploration Agency. http://www.jaxa.jp/pr/brochure/pdf/01/rocket07.pdf. 
  5. ↑ Graham, William (26 August 2013). "Japan's Epsilon launch with SPRINT-A scrubbed". NASASpaceflight.com. http://www.nasaspaceflight.com/2013/08/japans-epsilon-launch-sprint-a/. 
  6. ↑ Clark, Stephen (14 September 2013). "Japan's 'affordable' Epsilon rocket triumphs on first flight". Spaceflight Now. http://www.spaceflightnow.com/epsilon/sprinta/130914launch/. 
  7. ↑ "SPRINT-A: Solar Array Paddles Deployment and Nickname Decided". JAXA. September 14, 2013. http://www.jaxa.jp/press/2013/09/20130914_hisaki_e.html. 
  8. ↑ "Error: no |title= specified when using {{Cite web}}" (in ja). Yomiuri Online. Yomiuri Shimbun-sha. September 14, 2013. http://www.yomiuri.co.jp/science/news/20130914-OYT1T00684.htm. 
  9. ↑ F. Tsuchiya, et al. – Earth-orbiting Extreme Ultraviolet Spectroscopic Mission SPRINT-A/EXCEED
  10. ↑ Krebs, Gunter. "SPRINT A (EXCEED)". Gunter's Space Page. http://space.skyrocket.de/doc_sdat/sprint-a.htm. 
  11. ↑ "Spectroscopic Planet Observatory for Recognition of Integration of Atmosphere (SPRINT-A)". Japan Aerospace Exploration Agency. http://www.jaxa.jp/projects/sat/sprint_a/index_e.html. 
  12. ↑ "BepiColombo flies by Venus en route to Mercury". https://www.esa.int/Science_Exploration/Space_Science/BepiColombo/BepiColombo_flies_by_Venus_en_route_to_Mercury. 
  13. ↑ Astronomical Observation Satellites In Operation. JAXA – Missions. Accessed 23 September 2015
  14. ↑ Response of Jupiter's inner magnetosphere to the solar wind derived from extreme ultraviolet monitoring of the Io plasma torus. Go Murakami, Kazuo Yoshioka, Atsushi Yamazaki, Fuminori Tsuchiya, Tomoki Kimura, Chihiro Tao, Hajime Kita, Masato Kagitani, Takeshi Sakanoi, Kazunori Uemizu, Yasumasa Kasaba, Ichiro Yoshikawa, Masaki Fujimoto. Geophysical Research Letters. 20 December 2016, doi: 10.1002/2016GL071675
  15. ↑ https://www.isas.jaxa.jp/home/sprint-a/index_en.html#section04



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