Fitsat-1

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Fitsat-1
Type: Amateur radio satellite
Country: JapanJapan Japan
COSPAR-ID : 1998-067CP
Mission dates
Size: 10 cm × 10 cm × 10 cm
Begin: July 21, 2012
Starting place: Tanegashima Space Center
Launcher: H-2B
Status: completed
Orbit data
Rotation time : 92.5 min
Orbit inclination : 51.7 °
Apogee height :  408 km
Perigee height :  386 km
Eccentricity : 0.00159
FITSAT-1 (third from right)
NASA video of the release of the five CubeSats

Fitsat-1 , also Niwaka , was a Japanese amateur radio satellite with Cubesat architecture, which was built at the Fukuoka Institute of Technology on the island of Kyushu . Its main mission was to transmit JPEG images in VGA resolution. The secondary mission involved research into optical satellite communications using LEDs .

Fitsat-1 was launched on July 21, 2012 with the HTV-3 from the Tanegashima Space Center and brought to the International Space Station . From there it was released into space on October 4, 2012, together with the four other CubeSats TechEdSat 1 , WE WISH , RAIKO and F-1 .

The satellite sent digital data on 5840 MHz in the 6-centimeter band with a transmission rate of 115.2 kbps. In addition, a beacon was operated in CW on 437.250 MHz ( 70 cm band ) . A packet radio transceiver also sent telemetry data on 437.445 MHz via AX.25 ; at the same time it served to control the satellite.

On its secondary mission, green LEDs with a power of 30 W and a wavelength of 560 nm were used on the 10 cm × 10 cm × 10 cm satellite. These transmitted in optical telegraphy parallel to the CW beacon on the 70 cm tape. Initial tests over Japan and Europe in December 2012 showed that it was possible to optically decode the Morse code using a photo amplifier on a telescope.

The satellite's COSPAR designation is 1998-067CP and its callsign was JG6YEW.

The satellite burned up in the earth's atmosphere in July 2013.

literature

  • Fitsat-1 . In: Dipl.-Jur. Knut Theurich, DG0ZB (Ed.): Radio amateur . No. 12 . Box 73, December 2012, ISSN  0016-2833 , Sat-QTC, p. 1325 .

Web links

Remarks

  1. ↑ The release into orbit took place on October 4, 2012 ( UTC ).
  2. ↑ Railway data as of December 2012

Individual evidence

  1. ↑ a b Y. Kawamura, T. Tanaka: Emission of LEDs from an ultra small satellite (Shinning artificial star and space-ground LED optical communication). ( PDF ; 1.0 MB) Accessed December 21, 2012 (English / Japanese).
  2. ↑ a b FITSAT-1 (NIWAKA) on the Fukuoka Institute of Technology website, accessed December 21, 2012.
  3. ↑ FITSAT 1 on space-track.org , accessed June 10, 2019.