Artsat2-Despatch

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Artsat2-Despatch
Type: Amateur radio satellite, art object
Country: JapanJapan Japan
Operator: Tama School of Art
COSPAR-ID : 2014-076C
Mission dates
Dimensions: 30 kg
Size: 50 cm × 50 cm × 45 cm
Begin: December 3, 2014, 4:22 UTC
Starting place: Tanegashima
Launcher: H-IIA -202
Orbit data

Artsat2-Despatch ( English Deep Space Troubadour Amateur's Challenge also Fuji-OSCAR 81 , FO-81 ) is a Japanese amateur radio satellite and an art object of Tama Art University .

construction

Despatch was created in collaboration with the University of Tokyo . The art students regard a satellite as a “medium that connects everyday life with the universe”. Despatch is a screw-shaped sculpture that fits in the dimensions 50 cm × 50 cm × 45 cm. This sculpture was made with a 3D printer . After Invader , also known as Artsat-1, it is the university's second art object in space.

The AMSAT has the satellite with the amateur radio call sign JQ1ZNN the OSCAR short awarded -number Fuji-OSCAR 81, FO-81st The name "Fuji" was chosen to refer to the long history of Japanese involvement in amateur radio satellites ( JAS 1 , JAS 1B , JAS 2 , etc.).

The satellite contains an on-board computer, a transmitter and a battery, as well as a monopole antenna . The transmitter sends a telegraph signal on the frequency 437.325 MHz with a transmission power of 7 watts. Since the satellite's battery is not rechargeable, the satellite has been estimated to last seven days. DESPATCH does not have a position control . All assemblies, including the antenna, are encased in the sculpture.

mission

Despatch was launched on December 3, 2014 as a secondary payload together with Hayabusa 2 with an H-IIA rocket.

The satellite entered an elliptical orbit around the Sun and is in an orbit between Venus and Mars . The orbit inclination is close to zero, i.e. H. the satellite will remain in the earth's orbital plane . The distance to the sun will be between 0.7 and 1.3  AU .

On December 7, 2014, the signal was received from a distance of more than 2 million km and on December 15 from a distance of 4.7 million km. On January 3, 2015, the ground station of the Tama Art School declared the mission over and stopped the reception attempts.

Web links

Individual evidence

  1. ↑ About. Artsat website, accessed December 20, 2014 .
  2. ↑ FO-81 (ARTSAT-2 DESPATCH). AMSAT website, accessed December 20, 2014 .
  3. ↑ nasaspaceflight: Japanese H-IIA kicks off Hayabusa 2's asteroid mission. December 3, 2014, accessed December 3, 2014 .
  4. ↑ AMSAT-UK: OK1DFC and PE1ITR report DESPATCH beacon at 4.7 million km. December 15, 2014, accessed December 20, 2014 .
  5. ↑ AMSAT-UK: DESPATCH Grond Station Operations End. January 3, 2015, accessed January 3, 2015 .