Hisaki (satellite)

Hisaki
Artistic rendering of Hisaki in orbit.
Mission typeUltraviolet astronomy
OperatorJAXA
COSPAR ID2013-049A Edit this at Wikidata
SATCAT no.39253
Websitewww.jaxa.jp/projects/sat/sprint_a/
Mission duration~1 year planned (science phase) 11 years, 2 months and 13 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]

  1. ^ a b "Completed: More than 10 years of observations". ISAS/JAXA. Retrieved 8 December 2023.
  2. ^ a b c d e f g "SPRINT-A (HISAKI) Satellite details 2013-049A NORAD 39253". N2YO. 23 January 2015. Retrieved 25 January 2015.
  3. ^ "Shujiro Sawai, "Semi-Made-To-Order" Satellites: Faster, Cheaper, More Advanced". Japan Aerospace Exploration Agency. Archived from the original on 6 June 2013. Retrieved 27 August 2013.