Hayato (satellite)

Last updated

Hayato
NamesKSAT
Kagoshima Satellite
Mission type Technology demonstration
Atmospheric research
Operator Kagoshima University
COSPAR ID 2010-020A
SATCAT no. 36573
Mission duration55 days (achieved)
Spacecraft properties
Spacecraft CubeSat
Bus 1U CubeSat
Manufacturer Kagoshima University
Launch mass1.43 kg (3.2 lb)
Dimensions10 cm × 10 cm × 10 cm (3.9 in × 3.9 in × 3.9 in)
Power2 deployable fixed solar panels, solar cells and batteries
Start of mission
Launch date20 May 2010, 21:58:22 UTC
Rocket H-IIA (202) (# 17)
Launch site Tanegashima, Yoshinobu 1
Contractor Mitsubishi Heavy Industries
End of mission
Last contact1 June 2010 [1]
Decay date14 July 2010 [2]
Orbital parameters
Reference system Geocentric orbit [3]
Regime Low Earth orbit
Perigee altitude 299.1 km (185.9 mi)
Apogee altitude 299.6 km (186.2 mi)
Inclination 30.0°
Period 90.5 minutes
 

Hayato, known before launch as KSAT, or the Kagoshima Satellite, is a Japanese satellite which was launched on 20 May 2010. It is a student-built spacecraft, which is operated by Kagoshima University, and is being used for technology demonstration and atmospheric research. [4] The satellite is a single unit CubeSat, and carries equipment to study water vapour in the Earth's atmosphere, microwave imagery and spacecraft communication. [4] [5]

Contents

Launch

The launch was conducted by Mitsubishi Heavy Industries under contract to the Japan Aerospace Exploration Agency (JAXA). In preparation for a planned launch on 17 May 2010, the H-IIA launch vehicle was rolled out to Pad 1 of the Yoshinobu Launch Complex at the Tanegashima Space Center on 16 May 2010. It departed the assembly building at 21:01 UTC and arriving at the launch pad 24 minutes later at 21:25 UTC. [6] The terminal countdown began at 11:30 UTC on 17 May 2010 and by 15:28 UTC, the loading of cryogenic propellant into the rocket's first and second stages had been completed. [6] The launch attempt was scrubbed a few minutes before liftoff due to bad weather, but took place successfully at 21:58:22 UTC on 20 May 2010.

Mission

Hayato was deployed from a JAXA Picosatellite Deployer attached to the second stage of the H-IIA launch vehicle used in the launch of the Akatsuki spacecraft towards Venus. KSAT shared its dispenser with the Negai satellite, whilst a second dispenser contained Waseda-SAT2. The three CubeSats separated into low Earth orbit during a coast phase of the launch, between the first and second burns of the second stage. The launch vehicle then continued to heliocentric orbit, where it deployed Akatsuki, along with the IKAROS and UNITEC-1 spacecraft. [7] Contact with the satellite was established for 12 days only. [1]

See also

Related Research Articles

JAXA Japans national aerospace agency

The Japan Aerospace Exploration Agency (JAXA) is the Japanese national aerospace and space agency. Through the merger of three previously independent organizations, JAXA was formed on 1 October 2003. JAXA is responsible for research, technology development and launch of satellites into orbit, and is involved in many more advanced missions such as asteroid exploration and possible human exploration of the Moon. Its motto is One JAXA and its corporate slogan is Explore to Realize.

H-IIA Expendable medium-lift launch vehicle

H-IIA (H-2A) is an active expendable launch system operated by Mitsubishi Heavy Industries (MHI) for the Japan Aerospace Exploration Agency. These liquid fuel rockets have been used to launch satellites into geostationary orbit; lunar orbiting spacecraft; Akatsuki, which studied the planet Venus; and the Emirates Mars Mission, which was launched to Mars in July 2020. Launches occur at the Tanegashima Space Center. The H-IIA first flew in 2001. As of December 2021, H-IIA rockets were launched 45 times, including 39 consecutive missions without a failure, dating back to 29 November 2003.

RAIKO is a Japanese satellite which was built and operated by Tohoku and Wakayama Universities. A two-unit CubeSat, RAIKO was deployed from the International Space Station (ISS) on 4 October 2012, having been launched on 21 July 2012.

H-IIB Expendable launch system

H-IIB (H2B) was an expendable space launch system jointly developed by the Japanese government's space agency JAXA and Mitsubishi Heavy Industries. It was used to launch the H-II Transfer Vehicle cargo spacecraft for the International Space Station. The H-IIB was a liquid-fueled rocket, with solid-fuel strap-on boosters and was launched from the Tanegashima Space Center in southern Japan. H-IIB made its first flight in 2009, and had made a total of nine flights through 2020 with no failures.

2010 in spaceflight

The year 2010 in spaceflight saw a number of notable events in worldwide spaceflight activities. These included the first test flight of the SpaceX Dragon commercial resupply spacecraft, which is intended to resupply the International Space Station (ISS), and the maiden flights of the Falcon 9 and Minotaur IV rockets. In June 2010, South Korea conducted a second Naro-1 launch, after the failure of the rocket's maiden flight in 2009; however, the second attempt also failed. The Kosmos-3M was retired from service, making its final flight in April. The Molniya-M was also retired from service, making its final flight in September.

CP6, also known as CP6 CubeSat, CalPoly CP-6, PolySat-6 or PolySat CP6 is a single-unit CubeSat which was built and operated by the California Polytechnic State University (CalPoly). It was primarily intended to perform a technology demonstration mission. The main experiment consisted of sensors to determine the spacecraft's attitude. Cameras on the satellite will be used to verify the data returned by the attitude sensors.

Shin'en, known before launch as UNITEC-1 or UNISEC Technology Experiment Carrier 1, is a Japanese student spacecraft which was intended to make a flyby of Venus in order to study the effects of interplanetary spaceflight on spacecraft computers. In doing so, it was intended to become the first student-built spacecraft to operate beyond geocentric orbit. It was operated by UNISEC, a collaboration between several Japanese universities.

Waseda-SAT2 is a Japanese satellite which launched in May 2010. It is a student-built spacecraft, which will be operated by Waseda University, and is intended to be used for Earth observation and technology demonstration. It will test the use of extendible paddles to provide attitude control. The satellite is a single unit CubeSat.

Negai☆″ is a Japanese satellite which launched in May 2010. It is a student-built spacecraft, which will be operated by Soka University, and is intended to be used for technology demonstration. The satellite is a single unit CubeSat, and will be used to test a field programmable gate array in orbit. As part of an outreach programme, it will carry the names of selected children, along with wishes they have made. The satellite will return images of the Earth, which will be given to the participating children.

BeeSat-1

BeeSat-1 or Berlin Experimental and Educational Satellite 1, is a German satellite operated by the Technical University of Berlin. The spacecraft is a single unit CubeSat, which was designed to test systems intended for use on future spacecraft, including a new design of reaction wheel. It has also been used for amateur radio, and is equipped with a small camera.

2016 in spaceflight

Several new rockets and spaceports began operations in 2016.

Technology Education Satellite (TechEdSat) is a class of CubeSats built by San Jose State University and University of Idaho students in partnership with NASA's Ames Research Center. These satellites have tested communication technology for smallsats, and have contributed to the development of the Small Payload Quick Return (SPQR) concept.

Alexander (satellite)

Alexander, also known as PhoneSat 2.0 Beta or PhoneSat v2a is a technology demonstration satellite operated by NASA's Ames Research Center, which was launched in April 2013. Part of the PhoneSat programme, it was one of the first three PhoneSat spacecraft, and the first Phonesat-2.0 satellite, to be launched.

Graham (satellite)

Graham, also known as PhoneSat 1.0a or PhoneSat v1a was a technology demonstration satellite operated by NASA's Ames Research Center, which was launched in April 2013. Part of the PhoneSat programme, it was one of the first three PhoneSat spacecraft to be launched.

Bell (satellite)

Bell, also known as PhoneSat 1.0b or PhoneSat v1b was a technology demonstration satellite operated by NASA's Ames Research Center, which was launched in April 2013. Part of the PhoneSat programme, it was one of the first three PhoneSat spacecraft to be launched.

KSAT-2, also known as Hayato-2 was a Japanese satellite constructed by Kagoshima University as a reflight of its KSAT mission. It has a size of 10 x 10 x 10 cm and is built around a standard 1U CubeSat satellite bus. The primary satellite payload is a radio-frequency water vapor detector for climatology research.

Kounotori 8

Kounotori 8 (こうのとり8号機), also known as HTV-8 is the 8th flight of the H-II Transfer Vehicle, a robotic cargo spacecraft to resupply the International Space Station. It was launched on 24 September 2019, 16:05:05 UTC.

CubeSail is a proposed nanosatellite project by the Surrey Space Centre (SSC) in England. The spacecraft is to be a 3U CubeSat propelled by a 25 m²solar sail. The project is financed and technically supported by aerospace manufacturers Astrium and Surrey Satellite Technology.

References

  1. 1 2 "KSAT (Hayato) Project". Kagoshima University. 6 September 2011. Archived from the original on 14 April 2014. Retrieved 24 October 2021.
  2. "Information furnished in conformity with the Convention on Registration of Objects Launched into Outer Space" (PDF). Committee on the Peaceful Uses of Outer Space. 25 July 2011. Retrieved 24 October 2021.
  3. "Launch Log". Jonathan's Space Report. 21 July 2021. Retrieved 24 October 2021.
  4. 1 2 Krebs, Gunter (11 December 2017). "KSAT (Hayato)". Gunter's Space Page. Retrieved 24 October 2021.
  5. "鹿児島人工衛星開発部会 プロジェクト". Kagoshima University. Archived from the original on 15 May 2010. Retrieved 24 October 2021.
  6. 1 2 "Countdown Report". H-IIA Launch Services Flight 17. Mitsubishi Heavy Industries. Retrieved 17 May 2010.
  7. "Overview of Secondary Payloads". Akatsuki Special Site. JAXA. Retrieved 17 May 2010.